CN106203567B - Method for anti-counterfeit and system based on high-fidelity hiding figure - Google Patents

Abstract

The present invention provides a kind of method for anti-counterfeit and system based on high-fidelity hiding figure, is related to field of anti-counterfeit technology.Analysis module before the present invention is printed using hiding figure printed matter, analytical table figure, base map and its corresponding relationship, generate specific parameter setting, high-fidelity hiding is recycled to scheme digital linked network module, under full color high-quality table figure, hide multilayer high-resolution base map, the high-fidelity hiding figure number linked network module has carried out image quality distortion prediction and Optimization Compensation for setting mode of printing, by the high-fidelity halftone screen figure Plate making printing after Optimization Compensation, it is anti-counterfeit printed to export high-fidelity, suitable detection means is selected, it is anti-counterfeit printed to high-fidelity to detect, realize anti-fake purpose.Method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure can effectively improve table plot quality, expand the Application Range of table figure, the modulation amplitude of base map is big, contrast is high, good visual effect, high resolution, color range range are wide, keeps hiding figure counterfeit protection measures diversified, effectively improves anti-counterfeiting performance.

Description

Method for anti-counterfeit and system based on high-fidelity hiding figure

Technical field:

The present invention relates to field of anti-counterfeit technology more particularly to a kind of method for anti-counterfeit and system based on high-fidelity hiding figure.

Background technique:

Anti-counterfeiting technology, which just refers to, to prevent from forging, the technology of personation, and anti-fake product made by the product is with multiple anti- Pseudo- function, firstly, should be easy to pass through simple primary identification hand by the majority of consumers of not professional knowledge or trader Section identifies the true and false of product；Secondly, the officer cracking down on fake goods that should can permit producer passes through certain unconventional means identification one A little specific informations；Finally, in the case where producer officer cracking down on fake goods can not judge authenticity of products, it can be by special installation, by special The true and false of industry technical staff inspection product.

Equipment investment needed for anti-counterfeiting technology should be difficult to replicate and copy, replicate and copy is big, anti-fake product price itself Rationally, it is easily verified, makes, the characteristics of product antiforgerg identification should not be removed and be reused.

Has quite long history in the technology that the Biao Tuli of printing hides other images or information.With the number of printing Change and develop, the technical method of more and more hidden images or information is developed application, most commonly used to apply anti-fake Field.

The image for the actual displayed that observer can see is known as table figure；By particular technology be hidden in it is under table figure, Naked eyes can not differentiate and by corresponding detection means just can see image be known as base map；By base map be hidden in table figure it Under process be known as hide figure.

Diagram technology is hidden for anti-fake, main method is that one or more layers text or image are hidden below table figure, the figure hidden As can not with the naked eye identify, it is necessary to which use detection method corresponding with production hiding diagram technology, the most common method are using corresponding The lenticular lenses of frequency are detected, and when lenticular lenses and table figure are in certain angle, hiding figure shows, rotating shutter piece, each layer hiding Figure successively shows, and thus achievees the purpose that anti-fake.

When making anti-counterfeit printed using hiding diagram technology, table plot quality is most crucial requirement, if damaged because of hiding figure Having lost table plot quality, perhaps table figure must be that certain special pattern perhaps can only Tibetan language word or black white image or can only be at certain A part hiding figure, or the contrast of hiding figure are low, can all influence antifalse effect.

Conventional most of print systems do not have true intrinsic expressing gradation ability, such as offset printing, flexo etc., in order to One width is had on certain present substrate (such as paper) of chart of gray scale, the technology of linked network makes possible, and macroscopical gray scale is Reached by the plane coverage rate of microcosmic inking.Digital linked network system be exactly a grey chromatic graph is converted into only have (0,1) or The software systems of the high resolution bitmap (number half adjusts net figure or halftone screen figure) of two levels of black and white.After digital linked network, then By plate-making, printed matter is can be obtained in printing.

Hiding diagram technology is realized by the structural modulation to screen, the both macro and micro feature including screen, such as just To, frequency, the size of site, position, shape etc., the net figure containing base map, structure is complicated, site distortion (including site diffusion) It is difficult to predict.Existing hiding diagram technology can bring significantly damages to the picture quality of table figure, hide during figure to halftone dot Structure have certain destruction and upset, be embodied in showing for base map region or/and revealing for base map edge on table figure, this A defect strongly limits anti-fake effect of hiding diagram technology.In order to avoid base map region shows on table figure or/and base map edge is saturating The defect of dew, the method that the prior art uses are usually the modulation amplitude and contrast for reducing base map, sacrifice the vision effect of table figure Fruit, or the resolution ratio of base map is reduced, simple icon or text are only hidden, or reduce the Application Range of table figure, by base map It is confined to a certain narrow color range (concentration) range or is confined to the image local insensitive to observer, such as mixed and disorderly small office Portion or coarse color lump etc..It is simple and wide-spread to hide diagram technology principle, if the picture quality of Biao Tu and base map is not Height, it is with low content of technology, it is easy to be copied, in Application in Anti-counterfeiting, just be unable to reach due antifalse effect.

The physical process of printing is simulation (nonnumeric) process, and therefore, distortion, noise, unstability etc. can not be kept away Exempt from, therefore, during the halftone screen figure to practical printed matter of rasterizing, site has inevitable distortion, sometimes This distortion can also be quite serious.One index of most common of them is exactly the diffusion of site.For example, the photograph of offset printing or flexo In row, plate-making and printing process, each step has distortion, exposes, develops in the laser printing in digital printing, conversion, clinkering During, the distortion of each step is all quite serious, these distortions can seriously affect the table table plot quality finally printed.It is existing at present Have in technology, site distortion (including site diffusion) is difficult to predict, can not be before printing just in view of site in printing process Distortion, and perform accurately compensation correction.

In conventional screening technology, lattice point structure is uniform (periodically or non-periodically), the distortion of site in printing process Influence to output printed matter is mainly reflected in the brightness of image.Influence caused by this distortion is most of can be attributed to a little Diffusion, by simple color scheme or color range calibration, that is, resilient.But for irregular uneven lattice point structure, this A little modification methods are far from enough, and irregular non-uniform lattice point structure is very common in specialty printing, such as anti-counterfeit printing, special It is not the case where hiding another or multiple images in color printing image.Therefore, to irregular uneven lattice point structure Linked network system needs to have better correction-compensation method.

JURA company of Hungary proposes a kind of calculation that calibration compensation is carried out by super cell in its patent U6104812 Method is modified digital site, and table plot quality is significantly improved, but and imperfect.This algorithm is not to the object of printing The distortion of site compensates correction during reason, therefore, result only to printing physics during site distortion it is relatively small, Or screen frequency it is relatively low printed matter it is effective.Specifically, being exactly that distortion must be much smaller than lattice point structure.Therefore, The application range of the technology is very limited.

Although existing hiding diagram technology has some primary applications in anti-counterfeit field, due to having special want to table figure It asks, and hiding figure can destroy table figure visual effect, and hiding diagram technology level is lower, can only hide the black white image or text of seldom number of plies Word, therefore can not prevent from maliciously being copied, it cannot achieve always effectively anti-fake on printed matter.

Summary of the invention:

In view of the drawbacks of the prior art, the present invention provides a kind of method for anti-counterfeit and system based on high-fidelity hiding figure, utilizes Hide analysis system before figure printed matter prints, analytical table figure and COLOR COMPOSITION THROUGH DISTRIBUTION, brightness, resolution ratio and the anti-fake requirement of user of base map etc. Factor determines the hiding figure mode of base map, position, frequency, detection means etc., recycles an automatic high-fidelity hiding figure number extension Net system, the high-fidelity halftone screen figure after generating one group of Optimization Compensation, then by a setting print system, high-fidelity is hidden The halftone screen figure for scheming digital linked network system output carries out Plate making printing, obtains intuitive table figure effect and each layer base map effect, Table plot quality can be effectively improved, the Application Range of table figure is expanded, the modulation amplitude of base map is big, contrast is high, good visual effect, divides Resolution is high, color range range is wide, keeps hiding figure counterfeit protection measures diversified, effectively improves anti-counterfeiting performance.

On the one hand, the present invention provides a kind of method for anti-counterfeit based on high-fidelity hiding figure, comprising:

(a) input table figure and at least one base map；

(b) high-fidelity hiding is carried out to the table figure according to the requirement of setting mode of printing and schemes digital linked network, obtained for setting Determine the high-fidelity halftone screen figure for keeping base map of each monochrome of mode of printing, wherein at least one monochrome table figure keeps base map； It is for the distortion prediction and Optimization Compensation of setting mode of printing that the method for digital linked network is schemed in the high-fidelity hiding, and what is obtained is described The high-fidelity halftone screen figure for keeping base map of each monochrome.

(c) by the high-fidelity halftone screen figure after Optimization Compensation by the setting corresponding follow-up work program of mode of printing Printing is completed, the high-fidelity containing base map for exporting full color is anti-counterfeit printed；

(d) corresponding detection means, the high-fidelity obtained to printing are anti-counterfeit printed when selection is with hiding figure process It is detected, shows hiding base map, realize anti-fake purpose.

Further, high-fidelity hiding schemes the method for digital linked network and schemes digital hang based on directly modified high-fidelity hiding for one kind Network method；It is described that scheme digital net hanging method based on directly modified high-fidelity hiding be for setting mode of printing, to the table figure The modulation of Sutra-Pitaka figure carries out the distortion prediction and Optimization Compensation of image quality after directly printing with the halftone screen figure after linked network hiding figure.

Further, it is a kind of number that figure screen is hidden based on high-fidelity that another method of digital linked network is schemed in high-fidelity hiding Net hanging method；Half color of the digital net hanging method based on high-fidelity hiding figure screen to each color range of screen after linked network hides figure It adjusts net figure to carry out distortion prediction and compensating approach, establishes the high-fidelity hiding figure screen being all suitable for any table figure, with described High-fidelity hides figure screen and carries out linked network to the table figure of input.

Further, hiding figure mode include to periodic, acyclic or random site and cable some Or multiple attributes are modulated by base map, the attribute includes angle, phase, size, shape, density, frequency, position and ash Degree.

Further, if table figure is color image, table figure is divided into tetra- color of RGB trichromatic diagram or CMYK in step (b) Figure or other polychrome figures or the polychrome figure for adding other spot colors, then carry out linked network；If table figure is grayscale image, the table in step (b) Figure only has a kind of chromatic graph of black.

Further, above-mentioned to set mode of printing as intaglio printing, letterpress, lithographic printing, porous printing, glue Print, flexo, silk-screen printing, label printing, round tube printing, ink-jet, electrostatic, thermal transfer, heat sublimation or silver salt rinse.

Further, above-mentioned setting mode of printing can also be variable data printing, variable image printing or digital print Brush.

Further, base map to be concealed can be portrait, icon, text, number, date, series number, bar code, two dimension Code, pattern, decorative pattern or other black and white, gray level image.

Further, the anti-counterfeit printed method using one or more anti-fake effects of enhancing of the high-fidelity containing base map, institute It includes monochromatic multiple hiding figure, multiple color layer hiding figure, picture all standing hiding figure, the wide color range in table figure that stating, which enhances the method for anti-fake effect, Range hiding figure, the sensitizing range hiding figure in table figure, the region hiding figure in multiple color overlay, with high-resolution hiding figure, use high-resolution It hides small character or small icon, hiding grayscale image or is hidden with high contrast and schemed.

Further, the anti-counterfeit printed substrate of high-fidelity be all kinds of paper, it is cardboard, corrugated board, soft and hard plastic, compound Material, organic material, metal, alloy, metal foil, glass, timber, leather, special cloth, transparent substrate or cracky substrate.

Further, the anti-counterfeit printed surface of high-fidelity be plane, concave surface, convex surface or other curved surfaces, it is hard surface, soft Pressure release surface or other deformable surfaces.

Further, it can be packaging, label, paster, certificate, card, bill, trade mark, envelope that high-fidelity is anti-counterfeit printed Mouth patch, specification, invoice, admission ticket, drop, mark, marketable securities, text wound commercial product, cultural tour souvenir, nameplate, spy Industry mark, bar code or two dimensional code.

Further, the anti-counterfeit printed detection means of high-fidelity can for optical scanner, image analysis, extraordinary imaging, Other machines identification, special lighting, special observation angle, covering membrane module or other artificial means of identification；The cover film Piece module is irregular the film block of printing, optical decoder membrane module, rule or random micro-optics device array, line grating Film block or polka-dot raster film block.

Further, the anti-counterfeit printed detection means of high-fidelity can be interim identification or permanent identification, wherein permanent It is identified as will test film block to the anti-counterfeit printed for good and all covering or bond.

On the other hand, the present invention also provides a kind of anti-counterfeiting systems based on high-fidelity hiding figure, comprising:

Analysis module before printing, it is anti-fake for analyzing the table figure of input, the COLOR COMPOSITION THROUGH DISTRIBUTION of base map, brightness, resolution ratio and user It is required that providing further design parameter, tanka mode, position, frequency and the detection means of base map are determined, optimize anti-counterfeiting design Function；

Parameter generation module determines that design parameter is set for refining to the design parameter of analysis module output before printing It sets or the value range of parameter；

Digital linked network module is schemed in high-fidelity hiding, hides for realizing high-fidelity and schemes digital linked network, in the full-color color table of high-quality Under figure, base map is hidden, forms each monochromatic halftone screen figure；

Plate making printing module carries out Plate making printing, obtains full-color for each monochromatic halftone screen figure output after optimizing The high-fidelity containing base map of color is anti-counterfeit printed；

Detection module is used for carry out anti-counterfeiting detection anti-counterfeit printed to high-fidelity, shows hiding base map, reach anti-fake Purpose.

Further, analysis module includes: before printing

Table figure input module, for inputting table figure；

Base map input module, for inputting base map；

Design parameter input module, for inputting design parameter；

Image analysis module, for analyzing table figure, base map and the design parameter of input；

Output module is analyzed before print, for exporting the analysis result of image analysis module.

Further, parameter generation module includes:

Result input module is analyzed before print, for inputting the analysis result for printing preceding analysis module output；

Parameter input module, for inputting the requirement of color, figure layer, modulation, frequency parameter；

Parameter generation module, for generating the specific setting or value range of design parameter；

Parameter output module, for exporting the design parameter generated.

Further, high-fidelity hiding figure number linked network module includes:

Table figure color separation module one, the table figure for that will input carry out color separation, obtain each monochromatic table figure；

Linked network module, for table figure monochromatic each of after one color separation of table figure color separation module to be carried out conventional linked network respectively；

Site modulation module sets modulation parameter, determines debugging for according to the figure of base map and hiding the specific requirement of figure Mode carries out site modulation, completes hiding figure, exports the modulated halftoning digital network figure of each monochrome；

Print image fault prediction module one, in the case where set mode of printing, according to preset print system parameter with Table plot quality requires parameter, produces to possible after the halftoning digital network figure printing of each monochrome formed after the modulation of site modulation module Raw distortion carries out forecast assessment, and each monochromatic high-fidelity halftone screen figure containing base map for being also used to obtain is by colour superimposition It calculates, the possible defect of color and Biao Tu multilated site of counterweight poststack printing image is made prediction assessment；

Image fault compensation optimizing module one, for according to the obtained assessment parameter of printing image fault prediction module one and Each monochromatic halftoning digital network figure is carried out corresponding Optimization Compensation, is also used to be calculated according to colour superimposition by existing site state The parameter that forecast assessment obtains afterwards carries out corresponding Optimization Compensation to each monochromatic high-fidelity halftone screen figure containing base map, obtains Each monochromatic high-fidelity halftone screen figure advanced optimized；

Optimum results determination module one, for determining the halftoning number after one Optimization Compensation of image fault compensation optimizing module Whether word net figure reaches default optimization aim, if reaching requirement, each monochromatic high-fidelity halftoning containing base map that will obtain Otherwise halftoning digital network figure after Optimization Compensation is returned to printing image fault prediction module one by the output of digital network figure；

The halftone screen figure output module of optimization, for final each monochromatic halftone screen figure output after optimizing.

Further, high-fidelity hiding figure number linked network module includes:

Table figure color separation module two, the table figure for that will input carry out color separation, obtain each monochromatic table figure；

High-fidelity hides figure screen generation module, for creating high-fidelity hiding figure screen；

Table figure color separation figure linked network module generates mould for each achromatic map after table figure color separation to be hidden figure screen with high-fidelity The corresponding high-fidelity hiding figure screen of block creation carries out linked network, and the high-fidelity for exporting each monochrome hides figure halftone screen figure.

Further, figure screen generation module in high-fidelity hiding includes:

Color range linked network module obtains a single color for certain color stage to be filled a picture being sized The grayscale image of rank obtains the halftone screen figure of certain color stage then by conventional linked network；

Site modulation module, for half color according to the design objective and base map parameter request for hiding figure to certain color stage Net figure setting modulation parameter is adjusted, determines debud mode, carries out site modulation by base map, certain is of the same colour described in output hiding figure is modulated The halftone screen figure of rank；

Image fault prediction module two is printed, for existing to by the halftone screen figure of the single color range after base map modulation disturbance Issuable distortion carries out forecast assessment in printing process, is also used to each monochromatic high-fidelity halftoning containing base map that will be obtained Net figure is calculated by colour superimposition, and the possible defect of color and Biao Tu multilated site of counterweight poststack printing image is made Forecast assessment；

Image fault compensation optimizing module two, for according to the obtained assessment parameter of printing image fault prediction module two and Existing site state carries out corresponding correction-compensation and optimization to single color range net figure, obtains the base map that keeps of single color range Net figure after optimization；

Optimum results determination module two, for determining whether the halftoning digital network figure of the single color range after Optimization Compensation reaches High-fidelity halftoning digital network figure to default optimization aim, if reaching requirement, by obtained each single color range containing base map Otherwise halftoning digital network figure after Optimization Compensation is returned to printing image fault prediction module two by output；

Screen synthesis module, for obtained each color range to be synthesized one by correction-compensation and the half-tone picture of optimization A screen, i.e., corresponding monochromatic high-fidelity hide figure screen.

Further, above-mentioned each printing image fault prediction module includes:

Site input module one after modulation, for receiving the halftoning of the single color range exported after corresponding site modulated process The halftoning digital network figure of digital network figure or table figure, the input quantity as this printing image fault prediction module；

Printing parameter module, for setting mode of printing and parameter；

Compare parameter setting module, after the halftone screen figure and hiding figure of the color range before standard color range or hiding figure are set The color range halftone screen figure Comparative indices or original table figure with hiding figure after halftone screen chart figure or color it is Chong Die after Halftone screen chart figure Comparative indices；

Comparison algorithm module, for setting comparison pattern and comparative approach, half color of the single color range of certain after comparing hiding figure The halftone screen figure of net figure with the color range before standard color range or hiding figure is adjusted, or before comparing the halftone screen figure after hiding figure and hiding figure Halftone screen figure or original table figure；

Distorted result output module, the distortion prediction result obtained for exporting comparison algorithm module.

Further, above-mentioned each image fault compensation optimizing module includes:

Site input module two after modulation, for receiving the halftoning number of the single color range exported after the modulated process of site The halftoning digital network figure of net figure or table figure, an input quantity as this image fault compensation optimizing module；

Distorted result input module, for receiving the mistake predicted in the corresponding printing image fault prediction module True prediction result, as another input quantity of this image fault compensation optimizing module, the i.e. foundation of Optimization Compensation；

Optimal Parameters setup module, for the relevant parameter during Optimization Compensation to be arranged；

Optimization algorithm module, for pre- according to the distortion predicted in the corresponding printing image fault prediction module Result is surveyed to the halftone screen figure of the received single color range of site input module two after modulation or the halftoning digital network figure of table figure Optimize compensation；

Optimize site output module, the halftoning digital network figure after the Optimization Compensation for obtaining optimization algorithm module is defeated Corresponding optimum results determination module is given out.

As shown from the above technical solution, the method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure, utilizes hiding Analysis system before figure printed matter prints, the COLOR COMPOSITION THROUGH DISTRIBUTION of analytical table figure and base map, brightness, resolution ratio and user it is anti-fake require etc. because Element determines the hiding figure mode of base map, position, frequency, detection means etc., recycles an automatic high-fidelity hiding figure number linked network System, the high-fidelity halftone screen figure after generating one group of Optimization Compensation, then by a setting print system, high-fidelity is hidden and is schemed The halftone screen figure of digital linked network system output carries out Plate making printing, obtains intuitive table figure effect and each layer base map effect, In the case where guaranteeing table figure high-fidelity, multilayer high definition, multi-level gray scale base map is hidden under the color table figure of high-quality, is had Effect realizes anti-fake purpose.

Method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure, fundamentally eliminates hiding figure to Biao Tutu The damage of image quality amount, while hiding figure ability is greatly improved, it is the anti-counterfeit printed design method and scheme that optimization is provided, makes It is anti-counterfeit printed to have effects that preferably anti-imitation, system, counter-scanning reprint repeatedly.

Method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure, which is also particularly suitable, to be based on being periodically detected The hiding figure of diaphragm makes, and can will hide clarity, the contrast optimization of figure, the quality without damaging table figure.

Method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure can effectively improve table plot quality, expand table figure Application Range, apply also for the case where base map is constant, table figure largely changes or replaces.When hiding figure, hidden at figure on table figure Edge seamlessly transits, without trace, and the trace of multilayer base map is not seen in table chart face, meanwhile, table figure can be any brightness, appoint The image of what contrast, the alterable range of the gray scale of table figure is wide, and base map can be hidden in whole picture table figure map sheet in the following, full page hiding figure When base map can be periodic repeat patterns, be also possible to some individual picture.

Method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure keeps suppressible base map modulation amplitude big, right , good visual effect higher than degree, high resolution, base map are also possible to the text or image of very little, and after hiding figure, base map high definition is differentiated The close inspection piece line number of rate.

Method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure can effectively improve on table figure for hiding figure Color range range can be schemed high-fidelity hiding in panchromatic order range, can also be hidden in base map in several different color ranges or connect The certain color range range of continuous covering.

Method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure be not by the shadow of specific hiding figure modulation system It rings, various hiding drawing methods is applicable in, the hybrid multilayer that various ways can be carried out to a certain color separation hides figure；It can be to multiple points Color or each color separation carry out hiding figure independently, enrich the content of hiding figure and technical skill greatly, can more effectively improve Hide the expressive force and anti-fake effect of figure.

It is clear when method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure can detect each layer base map Degree and contrast make control independently, have it will be apparent that also have it is very deep being not easy illusion hiding, thus, provide not The counterfeit protection measures of same level meet the anti-fake demand of different levels.

One base map can be divided into several parts by the method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure, It is ensconced in several monochromes respectively, in this case, only detection diaphragm detects the spirte ensconced in each monochrome simultaneously And synthesis display, base map can just display.

Method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure can hide three-dimensional base map, warp under table figure Corresponding detection means is crossed, can show stereoscopic effect；It can also be by the base map of hiding specially treated, in inspection piece in respective corners When degree is fixed, with the angle of illumination and the variation at visual angle, different effects is generated；It by the rotation of inspection piece or can also translate, Under table figure background, the base map sequence of different levels shows, and forms unique animation effect；Multi-layer bar code, two dimension can be hidden The codes category informations such as code, and can be distinguished after figure identification using all kinds of barcode scanning equipment.

Method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure keeps hiding figure manufacturing process simple, does not change original Plate-making, printing technology do not use special consumptive material, do not increase printing cost additionally, just solve the problems, such as hiding figure in printing, are not required to Print post-processing.

Method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure is suitable for various printing technologies, various printings The configuration of surface of substrate, various substrates.

Detailed description of the invention:

Fig. 1 is the method for anti-counterfeit flow chart that figure is hidden based on high-fidelity of the embodiment of the present invention；

Fig. 2 is that the first process schematic of digital linked network is schemed in high-fidelity hiding in Fig. 1；

Fig. 3 is that digital linked network second process schematic diagram is schemed in high-fidelity hiding in Fig. 1:

Fig. 4 is that high-fidelity hides figure screen generating process system flow chart in Fig. 3；

Fig. 5 is that image fault forecasting system and image compensation optimization system flow chart are printed in Fig. 2 and Fig. 4；

Fig. 6 is the structural block diagram of the anti-counterfeiting system that figure is hidden based on high-fidelity of the embodiment of the present invention；

Fig. 7 is the structural block diagram of analysis module before printing in Fig. 6；

Fig. 8 is the structural block diagram of parameter generation module in Fig. 6；

Fig. 9 is the structural block diagram that the first module of digital linked network is schemed in high-fidelity hiding in Fig. 6；

Figure 10 is the structural block diagram that second of module of digital linked network is schemed in high-fidelity hiding in Fig. 6；

Figure 11 is the structural block diagram that high-fidelity hides figure screen generation module in Figure 10；

Figure 12 is the structural block diagram of each printing image fault prediction module；

Figure 13 is the structural block diagram of each image fault compensation optimizing module.

In figure: 601, analysis module before printing；6011, table figure input module；6012, base map input module；6013, design ginseng Number input module；6014, image analysis module；6015, output module is analyzed before print；602, parameter generation module；6021, before printing Analyze result input module；6022, parameter input module；6023, parameter generation module；6024, parameter output module；603, high Scheme digital linked network module in fidelity hiding；603A1, table figure color separation module one；603A2, linked network module；603A3, site modulation module One；603A4, printing image fault prediction module one；603A5, image fault compensation optimizing module one；603A6, optimum results are sentenced Cover half block one；603A7, optimization halftone screen figure output module；603B1, table figure color separation module two；603B2, high-fidelity hiding figure Screen generation module；603B21, color range linked network module；603B22, site modulation module two；603B23, printing image fault are pre- Survey module two；603B24, image fault compensation optimizing module two；603B25, optimum results determination module two；603B26, screen Synthesis module；603B3, table figure color separation figure linked network module；604, Plate making printing module；605, detection module；1201, net after modulating Point input module one；1202, printing parameter module；1203, compare parameter setting module；1204, comparison algorithm module；1205, Distorted result output module；1301, site input module two after modulating；1302, distorted result input module；1303, optimization ginseng Number setup module；1304, optimization algorithm module；1305, optimize site output module.

Specific embodiment:

With reference to the accompanying drawings and examples, specific embodiments of the present invention will be described in further detail.Implement below Example is not intended to limit the scope of the invention for illustrating the present invention.

A kind of method for anti-counterfeit based on high-fidelity hiding figure, as shown in Figure 1, for the flow chart of this method, in the present embodiment, Four width base maps are hidden under one full-color table figure, achieve the purpose that anti-fake, table figure pattern smooth transition, resolution ratio 300dpi, base map 1 For 8 gray scale hiding figures of width full version identical with table figure map sheet, base map 2 is 8 grayscale images of a width portrait, and base map 3 is width flower 8 grayscale images of grass, base map 4 are that a width logo full page is repeated cyclically base map, and hiding figure frequency is 159lpi, and table graph coloring order range can To be 0~100%, the color range range of base map is also possible to 0~100%, in 10~90% range of table graph coloring order range, base map It is clear detectable.It is described that the specific method is as follows.

S101, input table figure, at least one base map and its design parameter, design parameter include the base map hidden under table figure Positional relationship, hiding figure mode, angular relationship, chromatograph, various weights, the frequency of site etc..

S102, the corresponding relationship and design parameter of table figure, base map, Biao Tu and base map are analyzed, analyzed as a result, Determine positional relationship, color relations, brightness relationship, resolution ratio relationship, figure layer relationship, the modulation system, modulation of table figure and base map Amplitude, table figure distortion permissibility, hiding figure position, hiding figure frequency distribution and detection means etc..

S103, according to design requirement, the analysis result that step S102 is obtained is calculated and is refined, generate design parameter Setting.

Wherein, figure layer relationship is that the design of base map 1 is in cyan layers, and in magenta layer, base map 4 is set for base map 2 and the design of base map 3 Meter is in black layer；Hiding figure frequency is unified for 159lpi；Table figure allows the distortion factor to be 5%；Modulation system is that base map 1 is amplitude modulation net Point plus phase modulation position mode, base map 2 and base map 3 are that amplitude adds phase modulation position mode, and base map 4 is that amplitude adds hue angle side Formula；Four layers of base map angle are respectively 15 degree, 75 degree, 165 degree and 45 degree.

S104, it is required according to corresponding print system, the table figure color separation to input is green, pinkish red, yellow and black four color, is obtained Each monochrome table figure；

S105, each achromatic map after table figure color separation is carried out to the digital linked network of high-fidelity hiding figure, achromatic map respectively enters phase Digital linked network system is schemed in corresponding monochrome high-fidelity hiding, and each monochrome high-fidelity hiding figure number linked network system has corresponding respectively The color base map and parameter input, yellow color scheme without hiding, are not required to modulate；Cyan, magenta and black monochromatic have hiding figure requirement.

Wherein, cyan and the high-fidelity of black hiding scheme digital linked network system and scheme digital linked network mistake using the first high-fidelity hiding Journey realizes hiding figure linked network respectively, as shown in Figure 2.Digital linked network system is schemed using second of high-fidelity hiding in the high-fidelity hiding of magenta Scheme digital linked network process and realize hiding figure linked network, as shown in Figure 3 and Figure 4.Two kinds of hiding figure modes, in order to realize high-fidelity, all by In a printing image fault prediction and image compensation optimization process, as shown in Figure 5.With reference to the accompanying drawing, to of the invention two Kind high-fidelity hiding figure number net suspension mode is described in further detail.

Digital linked network system is schemed to the high-fidelity hiding of cyan and black, digital linked network process is schemed using the first high-fidelity hiding Hiding figure linked network is realized respectively, as shown in Fig. 2, the specific method is as follows:

S201, the monochromatic table figure of cyan and black is inputted into the first high-fidelity hiding figure number linked network system respectively；

S202, to cyan and black routinely digital net suspension mode linked network.For example, conventional linked network, cyan and black do not exist 15 degree and 45 degree, according to input parameter, select 159lpi amplitude；

S203, each achromatic map linked network hiding figure process have the corresponding color base map and parameter input respectively, wherein cyan monochrome Table figure adds phase modulation position mode to be modulated by amplitude modulation, and black monochromatic table figure adds tune net angle mode to be modulated by amplitude modulation, completes net Point modulation hiding figure, exports the halftone screen figure that base map is kept under the corresponding table figure of each monochrome；

S204, the high-resolution halftone screen figure of the corresponding rasterizing of each monochrome exported after modulating in step S203 are defeated Enter a printing image fault forecasting system, predicts each list from existing digital network dotted state according to different mode of printings Color halftone screen figure printing after distortion image quality, make including after table plot quality, the quality of each layer base map, printing there may be The various aspects such as image deflects, the position of table figure defect that may cause after being upset by base map of table figure site and the extent of damage comment Estimate；

S205, the defect parameters that step S204 forecast assessment obtains are transmitted to an image compensation optimization system, according to scarce It falls into parameter and existing site state compensation optimizing is made to prediction defect and determine, some or certain pixels is white or by white by blacking Halftone screen figure is carried out corresponding Optimization Compensation by blackening；

S206, optimized compensated optimum results are determined, if meeting default Optimal Parameters requirement, this implementation Preset optimization aim is the distortion factor less than 5% in example, then each monochromatic high-fidelity halftone screen figure containing base map is obtained, under Otherwise the output of step S205 is fed back to step S204 again by one step, re-start prediction, compensation optimizing and judgement, until Until meeting parameter preset requirement.

Step S204, the flow chart of S205 and S206 is as shown in Figure 5.

Hiding figure usually may cause two class defects to the modulation of lattice point structure, and the first kind is direct caused by half-tone picture Defect, this kind of defect can identify on half-tone picture, that is to say, that even ideally absolutely not printing out to distortion Come, defect there is also.To this first kind defect, it is necessary to be corrected.Second class defect can not be directly sentenced in half-tone picture Other, it is the different print system as caused by the distortion of print system and the upset interaction of lattice point structure, as a result not Together.This second class defect should accurately be compensated on digital halftone net figure for setting print system.The present invention couple The correction-compensation of two kinds of defects is all suitable for, and can be distinguished correction-compensation to both defects, can also be completed at the same time.

It is executed by the circulation of step S204, S205 and S206, has obtained the high-fidelity containing base map of cyan and black Halftoning digital network figure or halftone screen figure for optimization.

Scheme number linked network system and digital linked network process realization hiding is schemed using second of high-fidelity hiding in the high-fidelity hiding of magenta Figure linked network, as shown in figure 3, the specific method is as follows:

S301, input monochrome separation figure, base map and its setting parameter.This example, pinkish red monochrome bitmap no longer need to color separation, directly Into the channel for corresponding to pinkish red bitmap, base map 2,3 and other setting parameters are also directly inputted；

Next series of step S302 to S307 is to generate pinkish red high-fidelity hiding figure screen, and detailed process is such as Shown in Fig. 4.

S302, single color range routine linked network is carried out to the color range 0 of pinkish red single-color layer, phase modulation position is added by amplitude modulation to the color range figure Mode is modulated, and is completed hiding figure, is obtained the 0 net figure of color range for keeping base map；

The modulated net of the color range 0 figure one printing image fault predicting subsystem of input of S303, Jiang Zangtu, with color range 0 Standard color range figure is compared, and the picture from existing digital network dotted state, according to different mode of printings, after prediction printing Matter, printing image fault predicting subsystem come control forecasting mode and prediction by using one group of Prediction Parameters to the prediction of image quality Target, this group of Prediction Parameters include but is not limited to standard of comparison be pinkish red 0 standard color range figure of color range, base map mode is 8 gray scales Figure, base map chromatograph be magenta layer, base map contrast is the 70% of maximum possible contrast, modulation system selection site amplitude modulation and Phase-modulation, mode of printing select offset printing.Using artificial intelligence fuzzy algorithmic approach, the table figure site distortion being likely to occur is carried out pre- It surveys；

S304, the defective data obtained according to printing image fault predicting subsystem forecast assessment is inputed to an image Distortion compensation optimizes subsystem, according to defect parameters and existing site state, makes optimization and determines, some or certain pixels by Blacking is white or black by leucismus, the single color range figure of color range 0 is carried out corresponding Optimization Compensation, wherein optimization algorithm is using simple Backoff algorithm.Image fault compensation optimizing subsystem carries out corresponding Optimization Compensation process to each net figure and passes through one group of Optimal Parameters Control its function, Optimal Parameters include but is not limited to table figure resolution ratio weight be 80, table graph coloring coloured silk weight is 80, table figure brightness power Weight is 80, table figure color transition weight is 80, base map resolution ratio weight is 20, base map luminance weights are 20；

S305, distortion prediction is re-started to optimized compensated 0 net figure of color range, determine optimum results, if optimization As a result meeting parameter preset requirement, then the 0 net figure of color range optimized carries out the prediction optimization process of lower color stage figure, otherwise, Compensation is optimized to 0 net figure of color range again, until meeting parameter preset requirement；

To the distortion prediction S304 and Optimization Compensation process S305 of the halftone screen figure of single color range, as shown in Figure 5.This Locate, " the halftone screen figure for keeping base map " is the modulated halftone screen figure of the color range, distortion prediction and correction-compensation in Fig. 5 Process is mainly independently to carry out to monochromatic halftone screen figure.

S306, the linked network that above-mentioned single color range is carried out to the lower color stage 1 of color range 0, the modulation of hiding figure, printing image fault are pre- It surveys, the operation of image fault Optimization Compensation, i.e. S302, S303, S304 and S305, repeats this process, until completing the monochrome The all operationss of all 0~255 grade of color ranges obtain 256 single color range net figures containing base map after pinkish red monochromatic optimization；

S307, the single color range net figure containing base map after pinkish red 256 monochromatic optimizations is overlaped, merges and forms one The magenta hiding figure screen for keeping base map of a gray scale.Different from net figure, screen is a grayscale image, combines all color ranges Lattice point structure, including hiding figure content, are all suitable for any table figure.

As a kind of alternate embodiment, hiding figure is only needed in a part, without carrying out in all color ranges.Such as Figure is not hidden (close to 0 or 255) close in complete white or completely black color range.For another example if certain monochrome of table figure is only confined to centainly Color range range, hiding figure and corresponding correction-compensation need not be carried out in the color range except this color range range；

By the process of S302 to S307, pinkish red monochromatic high-fidelity hiding figure screen has been generated for use.

S308, by the pinkish red color separation bitmap pinkish red high-fidelity hiding figure screen linked network generated by above-mentioned steps, i.e., will The gray value of magenta screen is as one group of threshold value, the gray value of each pixel of magenta achromatic map of table figure and corresponding magenta The threshold value of color screen pixel is done subtraction and is compared, if total is greater than 0, corresponding halftone screen image element value 1, if total is little In 0, then corresponding halftone screen image element value 0, repeats this process, obtains pinkish red monochromatic modulated half color for keeping base map Adjust net figure.

So far, the digital linked network process (S201 to S206 as shown in Figure 2) of figure is hidden using the first high-fidelity and has obtained blueness The high-fidelity of color and black hides figure halftone screen figure.Digital linked network process is schemed (such as Fig. 3 and Fig. 4 institute using second of high-fidelity hiding The S301 to S308 shown) obtain pinkish red high-fidelity hiding figure halftone screen figure.

S106, by the follow-up work program of the various printing technology chief minister's seals, each monochromatic halftone screen figure that optimization is completed is defeated Enter forme-producing system to make a plate, then carry out offset printing, the high-fidelity for obtaining keeping base map under table figure is anti-counterfeit printed.

S107, on the table figure being completed for printing, detected using 159lpi lenticular lenses, at 15 degree of grating angle, clearly Clear display base map 1, it is clear to show base map 2 at 75 degree of grating angle, it is clear to show base map 3 at 165 degree of grating angle, At 45 degree of grating angle, clear to show base map 4, rotating shutter piece, then four layers of base map successively show, and realize anti-fake purpose.

In specific implementation, digital halftone net figure can according to need corresponding by various printing technologies after Follow-up work program complete printing, thus output containing hiding figure printed matter, common printing technology have lithographic plate, intaglio plate, relief printing plate, Offset printing, flexo, gravure, laser imprinted etc.；Traditional printing mode can also first laser photo-typesetting, export the film, reprocessing plate-making, set Color printing, novel modern system mostly use no film directly to make a plate (CTP), then chromaticity printing, and digital printing system is then straight Connect output print pictures.It, can be according to hiding figure process choosing and the fashionable corresponding detection means in hiding, such as machine when needing to detect Device recognition, scanning, special lighting, special observation angle, special optical tool etc., carry out the base map of detection of concealed, most commonly seen Detection method is covered on table figure, when position angle is suitable, hiding figure will be shown with a kind of transparent optical film or plate Come.

It is a kind of based on high-fidelity hiding figure anti-counterfeiting system, for realizing it is above-mentioned based on high-fidelity hiding figure method for anti-counterfeit, As shown in fig. 6, the system specifically includes: digital linked network mould is schemed in analysis module 601, parameter generation module 602, high-fidelity hiding before printing Block 603, Plate making printing module 604 and detection module 605.

Analysis module 601 before printing, it is anti-for analyzing the table figure of input, the COLOR COMPOSITION THROUGH DISTRIBUTION of base map, brightness, resolution ratio and user Puppet requires, and provides further design parameter, determines tanka mode, position, frequency and the detection means of base map, optimizes anti-fake set Count function.As shown in fig. 7, the module specifically includes:

Table figure input module 6011, for inputting table figure；

Base map input module 6012, for inputting base map；

Design parameter input module 6013, for inputting design parameter；

Image analysis module 6014, for analyzing table figure, base map and the design parameter of input；

Output module 6015 is analyzed before print, for exporting the analysis result of image analysis module 6014.

Parameter generation module 602 determines design parameter for refining to the design parameter of analysis system output before printing It is arranged or the value range of parameter.As shown in figure 8, the module specifically includes:

Result input module 6021 is analyzed before print, for inputting the analysis result for printing preceding analysis module output；

Parameter input module 6022, for inputting the requirement of color, figure layer, modulation, frequency parameter；

Parameter generation module 6023, for generating the specific setting or value range of design parameter；

Parameter output module 6024, for exporting the parameter set.

Digital linked network module 603 is schemed in high-fidelity hiding, hides for realizing high-fidelity and schemes digital linked network, in the full color of high-quality Under table figure, base map is hidden, forms each monochromatic halftone screen figure.

High-fidelity hiding figure number linked network module 603 is the core of this system, the first structure is used based on directly modified Digital linked network system is schemed in high-fidelity hiding, and second of structure uses the digital linked network system based on high-fidelity hiding figure screen.

The first structure of digital linked network module 603 is schemed in high-fidelity hiding, as shown in figure 9, the module specifically includes:

One 603A1 of table figure color separation module, the table figure for that will input carry out color separation, obtain each monochromatic table figure；

Linked network module 603A2, for carrying out often table figure monochromatic each of after the one 603A1 color separation of table figure color separation module respectively Advise linked network:

Modulation module one 603A3 in site sets modulation parameter for according to the figure of base map and hiding the specific requirement of figure, It determines debud mode, carries out site modulation, complete hiding figure, export the high-resolution halftoning number of the corresponding rasterizing of each monochrome Net figure；

One 603A4 of image fault prediction module is printed, for joining according to preset print system in the case where setting mode of printing Several and table plot quality requires parameter, the halftoning digital network figure to each monochrome formed after one 603A3 of site modulation module modulation Issuable distortion carries out forecast assessment after printing, is also used to each monochromatic high-fidelity halftone screen figure containing base map that will be obtained It is calculated by colour superimposition, the possible defect of color and Biao Tu multilated site of counterweight poststack printing image is made a prediction Assessment；

One 603A5 of image fault compensation optimizing module, for what is obtained according to printing one 603A4 of image fault prediction module Parameter and existing site state are assessed, each monochromatic halftoning digital network figure is subjected to corresponding Optimization Compensation, is also used to according to face The parameter that forecast assessment obtains after color overlapping calculation optimizes each monochromatic high-fidelity halftone screen figure containing base map accordingly Compensation, each monochromatic high-fidelity halftone screen figure advanced optimized；

One 603A6 of optimum results determination module, after determining one 603A5 Optimization Compensation of image fault compensation optimizing module Halftoning digital network figure whether reach default optimization aim, if reaching requirement, each monochromatic height containing base map that will obtain Otherwise halftoning digital network figure after Optimization Compensation is returned to printing image fault prediction by the output of fidelity halftoning digital network figure One 603A4 of module；

The halftone screen figure output module 603A7 of optimization, for final each monochromatic halftone screen figure output after optimizing.

Second of structure of digital linked network module 603 is schemed in high-fidelity hiding, and as shown in Figure 10, which specifically includes:

Two 603B1 of table figure color separation module, the table figure for that will input carry out color separation, obtain each monochromatic table figure；

High-fidelity hides figure screen generation module 603B2, for creating high-fidelity hiding figure screen；

Table figure color separation figure linked network module 603B3, for using each achromatic map after table figure color separation accordingly by high-fidelity The high-fidelity hiding figure screen for hiding figure screen generation module 603B2 creation carries out linked network, exports the high-fidelity hiding figure half of each monochrome Tone net figure.For color separation figure by screen linked network, calculation method is simple and quick, by color separation figure and screen add and subtract or compared with realization. Due to using high-fidelity hiding figure screen, obtained halftoning hiding figure net figure also has high-fidelity characteristic.

High-fidelity hiding figure screen generation module 603B2 is specifically included as shown in figure 11: color range linked network module 603B21, net Point two 603B22 of modulation module, printing two 603B23 of image fault prediction module, two 603B24 of image fault compensation optimizing module, Two 603B25 of optimum results determination module and screen synthesis module 603B26.

Color range linked network module 603B21, for by one picture that is sized of certain color stage filling obtain one it is single The grayscale image of color range obtains the halftone screen figure of the color range then by conventional linked network.

Two 603B22 of site modulation module, for the design objective and base map parameter request according to hiding figure to the color range Halftone screen figure sets modulation parameter, determines debud mode, carries out site modulation by base map, and output hiding schemes that modulated this is single The halftone screen figure of color range.

Two 603B23 of image fault prediction module is printed, for by the halftoning of the single color range after base map modulation disturbance The issuable distortion in printing process of net figure is predicted, for the halftoning digital network to each monochrome formed after modulation Figure requires parameter in the case where setting mode of printing, according to preset table plot quality, predicts distortion issuable after printing Assessment, each monochromatic high-fidelity halftone screen figure containing base map for being also used to obtain are calculated by colour superimposition, counterweight poststack print The possible defect of color and Biao Tu multilated site of map brushing picture is made a prediction assessment.

Two 603B24 of image fault compensation optimizing module, for being obtained according to printing two 603B23 of image fault prediction module Assessment parameter and existing site state, corresponding correction-compensation and optimization are carried out to single color range net figure, obtain single color range The net figure kept after the optimization of base map.

Two 603B25 of optimum results determination module, for determining the halftoning digital network figure of the single color range after Optimization Compensation Whether default optimization aim is reached, if reaching requirement, each monochromatic high-fidelity halftoning digital network containing base map that will obtain Otherwise halftoning digital network figure after Optimization Compensation is returned to printing two 603B23 of image fault prediction module by figure output.

Screen synthesis module 603B26, for closing by correction-compensation and the half-tone picture of optimization by obtained each color range As a screen, i.e., corresponding monochromatic high-fidelity hides figure screen.When all selected color ranges all complete linked network, hiding figure, amendment After compensation and optimization, so that it may by the methods of superposition, the halftone screen figure after the correction-compensation of each color range be synthesized a net Screen.Since every color stage all passes through hiding figure, correction-compensation and optimization before this, screen generated is that high-fidelity hides figure net Screen, and all table figures are all suitable for.

The high-fidelity hiding figure number linked network module 603A (Fig. 9) or 603B (Figure 10) that both the above can be substituted for each other, may be used To be used to produce the high-fidelity hiding figure halftone screen figure of one group of each monochrome.

Plate making printing module 604 carries out Plate making printing, obtains for each monochromatic halftone screen figure output after optimizing The high-fidelity containing base map of full color is anti-counterfeit printed.

Detection module 605 is used for carry out anti-counterfeiting detection anti-counterfeit printed to high-fidelity, shows hiding base map, reach anti- Pseudo- purpose.

Each printing image fault prediction module in the present embodiment comprises the following structure, as shown in figure 12:

Site input module 1 after modulation, for receiving the half of the single color range exported after corresponding site modulated process The halftoning digital network figure of tone digital network figure or table figure, the input quantity as this printing image fault prediction module；

Printing parameter module 1202, for setting mode of printing and parameter；

Compare parameter setting module 1203, for the halftone screen figure and hiding of the color range before standard color range or hiding figure to be arranged The Comparative indices or original table figure and halftone screen chart figure or color weight after hiding figure of the halftone screen figure of the color range after figure The Comparative indices of the halftone screen chart figure of poststack；

Comparison algorithm module 1204, for setting comparison pattern and comparative approach, the single color range of certain after comparing hiding figure The halftone screen figure of the color range before halftone screen figure and standard color range or hiding figure, or compare the halftone screen figure after hiding figure and hiding Halftone screen figure or original table figure before figure；Distorted result output module 1205 is obtained for exporting comparison algorithm module 1204 Distortion prediction result.

Each image fault compensation optimizing module in the present embodiment comprises the following structure, as shown in figure 13:

Site input module 2 1301 after modulation, for receiving the halftoning of the single color range exported after the modulated process of site The halftoning digital network figure of digital network figure or table figure, an input quantity as this image fault compensation optimizing module；

Distorted result input module 1302, for receiving the distortion predicted in corresponding printing image fault prediction module Prediction result, as another input quantity of this image fault compensation optimizing module, the i.e. foundation of Optimization Compensation；

Optimal Parameters setup module 1303, for the relevant parameter during Optimization Compensation to be arranged；

Optimization algorithm module 1304, for according to the distortion prediction predicted in corresponding printing image fault prediction module As a result the halftoning digital network of the halftone screen figure to the received single color range of site input module 2 1301 after modulation or table figure Figure optimizes compensation；

Optimize site output module 1305, the halftoning number after the Optimization Compensation for obtaining optimization algorithm module 1304 Word net figure is exported to corresponding optimum results determination module.

Method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure, analysis system before being printed using hiding figure printed matter The factors such as COLOR COMPOSITION THROUGH DISTRIBUTION, brightness, resolution ratio and the anti-fake requirement of user of system, analytical table figure and base map, determine the hiding figure of base map Mode, position, frequency, detection means etc. recycle an automatic high-fidelity hiding to scheme digital linked network system, generate one group of optimization Compensated high-fidelity halftone screen figure, then by a setting print system, high-fidelity is hidden and schemes digital linked network system output Halftone screen figure carry out Plate making printing, obtain intuitive table figure effect and each layer base map effect, guaranteeing table figure high-fidelity In the case of, multilayer high definition, multi-level gray scale base map is hidden under the color table figure of high-quality, effectively realizes anti-fake mesh 's.

Method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure, fundamentally eliminates hiding figure to Biao Tutu The damage of image quality amount, while hiding figure ability is greatly improved, it is the anti-counterfeit printed design method and scheme that optimization is provided, makes It is anti-counterfeit printed to have effects that preferably anti-imitation, system, counter-scanning reprint repeatedly；Modulation to the progress of regular site cable, When especially modulation amplitude is bigger, it is easy to cause the defect of table figure, therefore, invention is also particularly suited for use in based on periodically inspection The hiding figure production for surveying diaphragm, can will hide clarity, the contrast optimization of figure, the quality without damaging table figure；It can effectively improve Table plot quality expands the Application Range of table figure, moreover it is possible to be suitable for the case where base map is constant, table figure largely changes or replaces；It is hiding The edge at figure to be hidden when figure, on table figure to seamlessly transit, without trace, the trace of multilayer base map is not seen in table chart face, meanwhile, table Figure can be the image of any brightness, any contrast, and the alterable range of the gray scale of table figure is wide, and base map can be hidden in whole picture table Figure map sheet is also possible to some individual picture in the following, base map when full page hiding figure can be periodic repeat patterns；Making can Hiding base map modulation amplitude is big, contrast is high, good visual effect, high resolution, and base map is also possible to the text or figure of very little Picture, after hiding figure, base map high definition, the close inspection piece line number of resolution ratio；The color range range on table figure for hiding figure can be effectively improved, it can be with The high-fidelity hiding figure in panchromatic order range can guarantee 5% to 90% as it can be seen that 10% to 80% is clear, can also hide base map Certain color range range in several different color ranges or continuously is covered, more preferably greater than 20% color range range, for example, from 30% To 70%, for another example from 15% to 40%, to improve the efficiency of anti-imitation；It is not influenced by specific hiding figure modulation system, it is right Various hiding drawing methods are applicable in, and the hybrid multilayer that various ways can be carried out to a certain color separation hides figure, including but not limited to site Phase-modulation and angle of halftone screen line are modulated and use, site phase-modulation and dot shape are modulated and use, multi-angle site phase-modulation, Leggy site phase-modulation, multi-frequency site phase-modulation etc.；Multiple color separations or each color separation can be carried out independently Hiding figure, enrich the content of hiding figure and technical skill greatly, can more effectively improve the expressive force and anti-fake effect of hiding figure；It can Clarity and contrast when detecting to each layer base map make control independently, have it will be apparent that also having very hiding It is not easy illusion deeply, to provide the counterfeit protection measures of different levels, meets the anti-fake demand of different levels；It can be by a base map It is divided into several parts, is ensconced in several monochromes respectively, in this case, only detection diaphragm detects to ensconce each list simultaneously Spirte and synthesis display in color, base map can just display；Three-dimensional base map can be hidden under table figure, by examining accordingly Survey means can show stereoscopic effect；Piece can also be being examined when respective angles are fixed by the base map of hiding specially treated, With the angle of illumination and the variation at visual angle, different effects is generated；It can also be by the rotation of inspection piece or translation, in table figure background Under, the base map sequence of different levels shows, and forms unique animation effect；The codes class such as multi-layer bar code, two dimensional code letter can be hidden Breath, and can be distinguished after figure identification using all kinds of barcode scanning equipment；It is simple to hide figure manufacturing process, does not change former system Version, printing technology do not use special consumptive material, do not increase printing cost additionally, just solve the problems, such as hiding figure in printing, do not need Print post-processing.

Method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure is suitable for various printing technologies, various printings The configuration of surface of substrate, various substrates.Wherein, printing technology include but is not limited to conventional graphic arts printing technology intaglio printing, Letterpress, lithographic printing, porous printing, offset printing, flexo, silk-screen printing etc., the ink-jet of digital printing technology, electrostatic, heat turn Print, heat sublimation, silver salt flushing etc., the label printing of specialty printing, round tube printing etc., printing element includes but is not limited to all kinds of paper , cardboard, corrugated board, soft and hard plastic, composite material, organic material, metal, alloy, metal foil, glass, timber, leather, Special cloth etc., and figure can be hidden on plane or curved surface, hard surface, soft-surface or other deformable surfaces and gone back It is former.

Method for anti-counterfeit and system provided by the invention based on high-fidelity hiding figure can be widely used in the anti-of various product The fields such as pseudo- packaging, antifalsification label, anti-fake paster, can be in any colored print such as the exterior and interior packing of commodity, trade mark label, Sealing piece Anti-fake relief is hidden at brush, can also print dedicated relief antifalsification label.

Present invention may apply to following industry or products, but are not limited to these industries or product, including tobacco and alcohol industry, food Savor non-staple food industry, seed means of agricultural production industry, Ways of Special Agricultural Products industry, automobile fitting rub with industry, high-grade goods industry, dresser row Industry, drugs and health care products industry, cultural printing and publishing industry, clothes, shoes and hats industry, light industry electrical apparatus industry, toy gift and other Have the industry of anti-fake demand, can also be applied to the external packing box of the above every profession and trade various product, inner packaging box, antifalsification label, Label, paster, trade mark label, specification, drug sealing metal foil, Sealing piece, professional industry label and other be attached to product On or the printed matter that is printed on product, further include all kinds of bills for having anti-fake demand, certificate, card certificate, security, hang Category product, each class name are commemorated in board, card, document, invoice class product, all kinds of text wound commercial products, printed matter, cultural tour Piece, nameplate, mark, distinguishing mark class product, all kinds of bar codes that need to be hidden, two dimensional code class product, data encryption and reduction are novel Animation product etc..

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and the claims in the present invention are limited Fixed range.

Claims (15)

1. a kind of method for anti-counterfeit based on high-fidelity hiding figure, which is characterized in that this method comprises:

(a) input table figure and at least one base map；

(b) high-fidelity hiding is carried out to the table figure according to the requirement of setting mode of printing and schemes digital linked network, obtained for setting print The high-fidelity halftone screen figure for keeping base map of each monochrome of brush mode, wherein at least one monochrome table figure keep base map；It is described The method of high-fidelity hiding figure number linked network is that one kind is based on based on direct modified high-fidelity hiding figure number net hanging method or one kind High-fidelity hides the digital net hanging method of figure screen, for the distortion prediction and Optimization Compensation of setting mode of printing, obtains described each The monochromatic high-fidelity halftone screen figure for keeping base map；

It is described that scheme digital net hanging method based on directly modified high-fidelity hiding be for setting mode of printing, to the table figure Sutra-Pitaka Figure modulation carries out the distortion prediction and Optimization Compensation of image quality after directly printing, specific side with the halftone screen figure after linked network hiding figure Method are as follows:

(b11) the table figure of input is subjected to color separation, obtains each monochromatic table figure；

(b12) table figure monochromatic each of after color separation is subjected to conventional linked network respectively；

(b13) according to the specific requirement of the figure of base map and hiding figure, modulation parameter is set, determines debud mode, carries out site tune System completes hiding figure, exports the modulated halftoning digital network figure of each monochrome；

(b14) parameter is required according to preset print system parameter and table plot quality, to half color of each monochrome formed after modulation Issuable distortion after the printing of digital network figure is adjusted to carry out forecast assessment, while each monochromatic halftone screen containing base map that will be obtained Figure is calculated by colour superimposition, and the possible defect of color and Biao Tu multilated site of counterweight poststack printing image is made pre- Assessment is estimated；

The forecast assessment method particularly includes: setting mode of printing and parameter are arranged original table figure or hide the halftoning before figure The Comparative indices of net figure and the table figure after hiding figure, the table figure and original table figure after comparing hiding figure or the halftone screen figure before hiding figure, Then the distortion prediction result compared is exported；

(b15) the assessment parameter and existing site state obtained according to forecast assessment carries out each monochromatic halftoning digital network figure Corresponding Optimization Compensation, the halftone screen figure after obtaining the independent compensation of each monochrome comprising respective base map, while according to color The parameter that forecast assessment obtains after overlapping calculation carries out corresponding optimization to each monochromatic high-fidelity halftone screen figure containing base map and mends It repays, each monochromatic high-fidelity halftone screen figure advanced optimized；When the Optimization Compensation, first it is arranged during Optimization Compensation Relevant parameter；

(b16) determine whether the halftoning digital network figure after Optimization Compensation reaches default optimization aim, it, will if reaching requirement Obtained each monochromatic high-fidelity halftoning digital network figure output containing base map, otherwise, by the halftoning digital network after Optimization Compensation Figure returns to (b14), re-starts distortion prediction；

The digital net hanging method based on high-fidelity hiding figure screen schemes modulated half color through linked network hiding to each color range of screen It adjusts net figure to carry out distortion prediction and compensating approach, establishes the high-fidelity hiding figure screen being all suitable for any table figure, with described High-fidelity hides figure screen and carries out linked network to the table figure of input, method particularly includes:

(b21) the table figure of input is subjected to color separation, obtains each monochromatic table figure；

(b22) creation high-fidelity hides figure screen, method particularly includes:

(b221) certain color stage is filled into a picture being sized, obtains the grayscale image of a single color range, then By conventional linked network, the halftone screen figure of certain color stage is obtained；

(b222) modulation is set to the halftone screen figure of certain color stage according to the design objective of hiding figure and base map parameter request Parameter determines debud mode, carries out site modulation by base map, the halftone screen figure of certain modulated color stage is schemed in output hiding；

(b223) to by halftone screen figure issuable distortion in printing process of the single color range after base map modulation disturbance Forecast assessment is carried out, method particularly includes:

Mode of printing and parameter are set, standard color range is set or hides the halftone screen figure of the color range before figure and hides the color after figure The Comparative indices of the halftone screen figure of rank set comparison pattern and comparative approach, the halftone screen of the color range after comparing hiding figure The halftone screen figure of figure and the color range before standard color range or hiding figure, then exports the distortion prediction result that comparison algorithm obtains；

(b224) relevant parameter during Optimization Compensation, the assessment parameter obtained according to forecast assessment and existing net-point shape are set State carries out corresponding correction-compensation and optimization to single color range net figure, obtains the net of single color range kept after the optimization of base map Figure；

(b225) determine whether the halftoning digital network figure of the single color range after Optimization Compensation reaches default optimization aim, if reached To requirement, then the high-fidelity halftoning digital network figure output by obtained each single color range containing base map, otherwise, after Optimization Compensation Halftoning digital network figure return (b223), re-start distortion prediction；

(b226) half-tone picture by correction-compensation and optimization of obtained each color range is synthesized into a screen, i.e., it is corresponding single The high-fidelity of color hides figure screen；

(b23) the corresponding high-fidelity hiding figure screen of each achromatic map creation after table figure color separation is subjected to linked network, output is every The high-fidelity of a monochrome hides figure halftone screen figure；

(c) the high-fidelity halftone screen figure after Optimization Compensation is completed by the corresponding follow-up work program of setting mode of printing Printing, the high-fidelity containing base map for exporting full color are anti-counterfeit printed；

(d) corresponding detection means, the high-fidelity anti-counterfeit printed progress that printing is obtained when selection is with hiding figure process Detection, shows hiding base map, realizes anti-fake purpose.

2. the method for anti-counterfeit according to claim 1 based on high-fidelity hiding figure, which is characterized in that the hiding figure mode includes Some or multiple attributes of periodic, acyclic or random site or cable are modulated by base map, it is described Attribute includes angle, phase, size, shape, density, frequency, position and gray scale.

3. the method for anti-counterfeit according to claim 1 based on high-fidelity hiding figure, which is characterized in that if the table figure is color The table figure is divided into RGB trichromatic diagram or tetra- chromatic graph of CMYK or other polychrome figures in the step (b) or adds other by chromatic graph picture The polychrome figure of spot color, then carry out linked network；If the table figure is grayscale image, the table figure described in the step (b) only has black A kind of chromatic graph.

4. the method for anti-counterfeit according to claim 1 based on high-fidelity hiding figure, which is characterized in that the setting mode of printing For intaglio printing, letterpress, lithographic printing, porous printing, offset printing, flexo, silk-screen printing, label printing, round tube printing, spray Ink, electrostatic, thermal transfer, heat sublimation or silver salt rinse.

5. the method for anti-counterfeit according to claim 1 based on high-fidelity hiding figure, which is characterized in that the setting mode of printing For variable data printing, variable image printing or digital printing.

6. it is according to claim 1 based on high-fidelity hiding figure method for anti-counterfeit, which is characterized in that the base map be portrait, Icon, text, number, date, series number, bar code, two dimensional code, pattern, decorative pattern or other black and white, gray level image.

7. the method for anti-counterfeit according to claim 1 based on high-fidelity hiding figure, which is characterized in that the high guarantor containing base map The very anti-counterfeit printed method using one or more anti-fake effects of enhancing, the method for described anti-fake effect of enhancing include monochromatic more Again hiding figure, multiple color layer hiding figure, picture all standing hiding figure, table figure wide color range range hiding figure, table figure sensitizing range hiding figure, In the region of multiple color overlay hiding figure, small character or small icon, hiding grayscale image or right with height are hidden with high-resolution hiding figure, with high-resolution It hides and schemes than degree.

8. the method for anti-counterfeit according to claim 1 based on high-fidelity hiding figure, which is characterized in that the high-fidelity anti-counterfeit stamping The substrate of brush product is all kinds of paper, cardboard, corrugated board, soft and hard plastic, composite material, organic material, metal, alloy, metal Foil, glass, timber, leather, special cloth, transparent substrate or cracky substrate.

9. the method for anti-counterfeit according to claim 1 based on high-fidelity hiding figure, which is characterized in that the high-fidelity anti-counterfeit stamping The surface of brush product is plane, concave surface, convex surface or other curved surfaces, hard surface, soft-surface or other deformable surfaces.

10. the method for anti-counterfeit according to claim 1 based on high-fidelity hiding figure, which is characterized in that the high-fidelity is anti-fake Printed matter be packaging, label, paster, certificate, card, bill, trade mark, Sealing piece, specification, invoice, admission ticket, drop, mark, Marketable securities, text wound commercial product, cultural tour souvenir, nameplate, special industry mark, bar code or two dimensional code.

11. the method for anti-counterfeit according to claim 1 based on high-fidelity hiding figure, which is characterized in that the detection means is Optical scanner, image analysis, extraordinary imaging, other machines identification, special lighting, special observation angle, cover membrane module or Other artificial means of identification；It is described covering membrane module be printing film block, optical decoder membrane module, rule or irregularly or Random micro-optics device array, line grating film block or polka-dot raster film block.

12. the method for anti-counterfeit according to claim 1 based on high-fidelity hiding figure, which is characterized in that the detection means is Temporarily identification or permanent identification, it is described to be identified as will test film block to the anti-counterfeit printed for good and all covering for a long time or bond.

13. a kind of anti-counterfeiting system based on high-fidelity hiding figure, which is characterized in that the system includes:

Analysis module (601) before printing provides further for analyzing the table figure of input, the characteristic and the anti-fake requirement of user of base map Design parameter；The design parameter includes the parameter, detection means or anti-counterfeiting design Optimal Parameters of tanka；

Parameter generation module (602) determines specific for refining to the design parameter of analysis module (601) output before printing The value range of parameter setting or parameter；

Digital linked network module (603) is schemed in high-fidelity hiding, hides for realizing high-fidelity and schemes digital linked network, in the full-color color table of high-quality Hiding base map under figure forms each monochromatic halftone screen figure of optimization；

Plate making printing module (604), it is corresponding by setting print system for each monochromatic halftone screen figure output after optimizing Follow-up work program completes printing, and the high-fidelity containing base map for obtaining full color is anti-counterfeit printed；

Detection module (605) is used for carry out anti-counterfeiting detection anti-counterfeit printed to high-fidelity, shows hiding base map, reach anti-fake Purpose；

Scheme digital linked network module (603), including table figure color separation module one (603A1), linked network module in the high-fidelity hiding therein (603A2), site modulation module one (603A3), printing image fault prediction module one (603A4), image fault compensation optimizing Module one (603A5), optimum results determination module one (603A6), the halftone screen figure output module (603A7) optimized, or packet Include table figure color separation module two (603B1), high-fidelity hiding figure screen generation module (603B2), table figure color separation figure linked network module (603B3)；

Table figure color separation module one (603A1), the table figure for that will input carry out color separation, obtain each monochromatic table figure；

Linked network module (603A2), for by table figure monochromatic each of after table figure color separation module one (603A1) color separation respectively into Row routine linked network；

Site modulation module one (603A3) sets modulation parameter, really for according to the figure of base map and hiding the specific requirement of figure Determine debud mode, carry out site modulation, completes hiding figure, export the modulated halftoning digital network figure of each monochrome；

It prints image fault prediction module one (603A4), is used in the case where setting mode of printing, according to preset print system parameter Parameter is required with table plot quality, the halftoning number to each monochrome formed after the site modulation module one (603A3) modulation Issuable distortion carries out forecast assessment after net figure printing, is also used to each monochromatic high-fidelity halftoning containing base map that will be obtained Net figure is calculated by colour superimposition, and the possible defect of color and Biao Tu multilated site of counterweight poststack printing image is made Forecast assessment；

Image fault compensation optimizing module one (603A5), for being obtained according to the printing image fault prediction module one (603A4) Each monochromatic halftoning digital network figure is carried out corresponding Optimization Compensation, is also used to root by the assessment parameter and existing site state arrived The parameter that forecast assessment obtains after calculating according to colour superimposition carries out each monochromatic high-fidelity halftone screen figure containing base map corresponding Optimization Compensation, each monochromatic high-fidelity halftone screen figure advanced optimized；

Optimum results determination module one (603A6), for determining that described image distortion compensation optimization module one (603A5) optimization is mended Whether the halftoning digital network figure after repaying reaches default optimization aim, each monochromatic containing base map by what is obtained if reaching requirement The output of high-fidelity halftoning digital network figure the halftoning digital network figure after Optimization Compensation is otherwise returned into the printing image Distortion prediction module one (603A4)；

The halftone screen figure output module (603A7) of optimization, for final each monochromatic halftone screen figure output after optimizing；

Table figure color separation module two (603B1), the table figure for that will input carry out color separation, obtain each monochromatic table figure；

High-fidelity hides figure screen generation module (603B2), for creating high-fidelity hiding figure screen；

Table figure color separation figure linked network module (603B3), for the high-fidelity of each achromatic map after table figure color separation to be hidden figure net The corresponding high-fidelity hiding figure screen for shielding generation module (603B2) creation carries out linked network, and the high-fidelity for exporting each monochrome hides figure Halftone screen figure；

High-fidelity hiding figure screen generation module (603B2) includes:

Color range linked network module (603B21) obtains a list for certain color stage to be filled a picture being sized The grayscale image of color stage obtains the halftone screen figure of certain color stage then by conventional linked network；

Site modulation module two (603B22), for the design objective and base map parameter request according to hiding figure to certain described color stage Halftone screen figure set modulation parameter, determine debud mode, by base map carry out site modulation, output hiding figure it is modulated described in The halftone screen figure of certain color stage；

It prints image fault prediction module two (603B23), for by the halftone screen of the single color range after base map modulation disturbance Figure issuable distortion in printing process carries out forecast assessment；

Image fault compensation optimizing module two (603B24), for according to the printing image fault prediction module two (603B23) Obtained assessment parameter and existing site state carries out corresponding correction-compensation and optimization to single color range net figure, obtains single The net figure of color range kept after the optimization of base map；

Optimum results determination module two (603B25), for determining that the halftoning digital network figure of the single color range after Optimization Compensation is No to reach default optimization aim, if reaching requirement, by obtained each single color range containing base map high-fidelity halftoning number Otherwise halftoning digital network figure after Optimization Compensation is returned to the printing image fault prediction module two by net figure output (603B23)；

Screen synthesis module (603B26), for synthesizing by correction-compensation and the half-tone picture of optimization by obtained each color range For a screen, i.e., corresponding monochromatic high-fidelity hides figure screen；

Each printing image fault prediction module includes:

Site input module one (1201) after modulation, for receiving half color of the single color range exported after corresponding site modulated process Adjust the halftoning digital network figure of digital network figure or table figure, the input quantity as this printing image fault prediction module；

Printing parameter module (1202), for setting mode of printing and parameter；

Compare parameter setting module (1203), for the halftone screen figure and hiding figure of the color range before standard color range or hiding figure to be arranged The Comparative indices or original table figure of the halftone screen figure of the color range afterwards with hiding figure after halftone screen chart figure or color it is Chong Die The Comparative indices of halftone screen chart figure afterwards；

Comparison algorithm module (1204), for setting comparison pattern and comparative approach, the half of the single color range of certain after comparing hiding figure The halftone screen figure of the color range before tone net figure and standard color range or hiding figure, or compare the halftone screen figure after hiding figure and hiding figure Preceding halftone screen figure or original table figure；

Distorted result output module (1205), the distortion prediction result obtained for exporting the comparison algorithm module (1204)；

Each described image distortion compensation optimization module includes:

Site input module two (1301) after modulation, for receiving the halftoning number of the single color range exported after the modulated process of site The halftoning digital network figure of word net figure or table figure, an input quantity as this image fault compensation optimizing module；

Distorted result input module (1302) is obtained for receiving prediction in the corresponding printing image fault prediction module Distortion prediction is as a result, another input quantity as this image fault compensation optimizing module, the i.e. foundation of Optimization Compensation；

Optimal Parameters setup module (1303), for the relevant parameter during Optimization Compensation to be arranged；

Optimization algorithm module (1304), for according to the distortion predicted in the corresponding printing image fault prediction module The half of the halftone screen figure of prediction result single color range received to site described after modulation input module two (1301) or table figure Tone digital network figure optimizes compensation；

Optimize site output module (1305), half color after Optimization Compensation for obtaining the optimization algorithm module (1304) Digital network figure is adjusted to export to the corresponding optimum results determination module.

14. the anti-counterfeiting system according to claim 13 based on high-fidelity hiding figure, which is characterized in that analyze mould before the print Block (601) includes:

Table figure input module (6011), for inputting table figure；

Base map input module (6012), for inputting base map；

Design parameter input module (6013), for inputting design parameter；

Image analysis module (6014), for analyzing table figure, base map and the design parameter of input；

Output module (6015) are analyzed before print, for exporting the analysis result of image analysis module (6014).

15. the anti-counterfeiting system according to claim 13 based on high-fidelity hiding figure, which is characterized in that the parameter generates mould Block (602) includes:

Result input module (6021) are analyzed before print, are used to input the analysis result of analysis module (601) output before printing；

Parameter input module (6022), for inputting the requirement of color, figure layer, modulation, frequency parameter；

Parameter generation module (6023), for generating the specific setting or value range of design parameter；

Parameter output module (6024), for exporting the parameter set.