CN115619673B - Digital pattern extraction and generation method - Google Patents

Abstract

The invention discloses a pattern digital extraction generation method, which comprises the steps of extracting paper material images from cultural relics, scanning the paper material images to obtain corresponding electronic material images, setting the non-pattern parts in the material images to be transparent, receiving the pattern structure received by the material images, dividing the material images into material parts according to the pattern structure to obtain the position relation among the material parts, sequentially overlapping the material parts into layers in a translation or rotation mode or a combination mode of the material parts to enable the material parts of the layers to be aligned respectively, combining the material parts of the layers to obtain primary texture patterns, detecting the primary texture patterns and completing the primary texture patterns to obtain final texture patterns, and reducing the final texture patterns according to the pattern structure to obtain overall texture patterns and outputting the overall texture patterns. The invention processes the material image in a digital mode and automatically restores the texture pattern and the corresponding element pattern.

Description

Digital pattern extraction and generation method

Technical Field

The invention relates to the field of artistic material data, in particular to a pattern digital extraction and generation method.

Background

China is a large country with long history, a large number of cultural relics are reserved so far, and in the cultural relics, precious patterns are not lacked, and are used as art in ancient China, so that the cultural relics have important roles in researching the art. Meanwhile, modern art can also be created on the basis of materials provided by the texturing patterns, so that a work with more aesthetic art is created.

The Yuenu academy is the maximum of the existing Chinese standard, the most perfect academy building group is saved, a large number of decorative patterns are reserved on two sides of the Yuenu academy gate, for example, a Ming dynasty stone drum is reserved on two sides of the Yuenu academy gate, an exquisite decorative pattern is carved on the stone drum, the decorative pattern is named as a three-lion playing bead picture, in the decorative pattern, the vivid gesture of the three-lion presents rich visual effects, and the pattern has the moral meaning of happiness, happiness and peace, thai and civil security. The pattern is engraved on the stone drum, and is copied on paper in a rubbing mode when obtained, so that a three-lion playing bead figure which is rubbing on the paper is obtained.

However, in the current practical situation, as the stone drum is not protected in time due to the long time of the year, the texture pattern of the three-lion playing bead figure is not clear, or the defect of part of the texture pattern is caused, so that the image after rubbing is not complete and needs to be completed artificially. Meanwhile, the developed image only has two colors of black and white, and most of the textured patterns of the three-lion playing bead graph can restore the original three-lion playing bead graph after the simple development is carried out on the developed image. When the three lions playing with the pearl graph is restored, the same texture patterns are also required to be restored gradually by manpower, so that a great deal of labor cost and time cost are consumed, the element patterns in the three lions playing with the pearl graph are extracted after the three lions playing with the pearl graph is restored, a great deal of labor cost and time cost are also required to be consumed, and for such a project, a professional team is always required to continuously study for more than ten years or even longer, so that some more perfect basic texture patterns and element patterns in the basic texture patterns can be obtained.

Disclosure of Invention

The invention aims to overcome the problems in the prior art and provide a pattern digital extraction and generation method, which processes material images in a digital mode and automatically restores the textured patterns and the corresponding element patterns on the cultural relics.

Therefore, the invention provides a pattern digital extraction generating method, which comprises the following steps:

Extracting a paper material image from the cultural relics, scanning the paper material image to obtain a corresponding electronic material image, and setting a part without patterns in the material image to be transparent;

receiving a pattern structure received by the material image, dividing the material image into material parts according to the pattern structure, and obtaining the position relation among the material parts;

sequentially overlapping all the material parts into all the layers in a translation or rotation mode or a combination mode of the two modes, so that the material parts of all the layers are aligned respectively;

Combining the material parts of all the layers to obtain a primary decoration pattern, detecting the integrity of the primary decoration pattern and completing the primary decoration pattern to obtain a final decoration pattern;

reducing the final texture pattern according to the pattern structure to obtain an overall texture pattern;

and the integral texture pattern corresponds to the material image and is output.

Further, when detecting the integrity of the preliminary texturing pattern and completing the preliminary texturing pattern to obtain a final texturing pattern, the method comprises the following steps:

displaying the preliminary texture pattern to a user, and simultaneously displaying the corresponding material image and each material part to the user;

Receiving and storing modifications of the user on the preliminary texture pattern;

And taking the finally saved primary texture pattern as the final texture pattern, and outputting.

Further, when the preliminary texture pattern, the material image and the material portions are displayed to the user, the size of the preliminary texture pattern is larger than the size of the material image and the size of the material portions, respectively, the preliminary texture pattern is displayed on the right side portion of the screen, and the material image and the material portions are displayed on the left side portion of the screen.

Further, when detecting the integrity of the preliminary texturing pattern and completing the preliminary texturing pattern to obtain a final texturing pattern, the method comprises the following steps:

Obtaining a pattern name in the preliminary decoration pattern according to the preliminary decoration pattern, and obtaining a corresponding shape according to the pattern name;

comparing the shape corresponding to the pattern name with the preliminary texture pattern to obtain a distinguishing part;

Eliminating the distinguishing portion by making up for an end point of a free end on the preliminary texturing pattern;

the preliminary texturing pattern with all the distinguishing portions eliminated is taken as the final texturing pattern, and output is completed.

Further, when the shape of the preliminary texturing pattern corresponding to the pattern name is compared to obtain the distinguishing part, the method comprises the following steps:

Respectively carrying out perspective equal-size correspondence on the shape corresponding to the pattern name and the preliminary decoration pattern in a central symmetry mode;

setting the length as the radius by taking each pixel point in the shape corresponding to the pattern name as the circle center, and obtaining the pixel point range;

Combining pixel point ranges corresponding to all pixel points in the shape corresponding to the pattern name to obtain a pattern range;

The preliminary texturing pattern is compared with the pattern range, and the portion beyond the pattern range is the distinguishing portion.

Still further, after the preliminary texturing pattern, from which the distinguishing portion is entirely eliminated, is taken as the final texturing pattern, the method includes the steps of:

Displaying the final texture pattern to a user, and simultaneously displaying the corresponding material image and each material part to the user;

receiving and saving modifications of the user on the final textured pattern;

And taking the final texture pattern which is finally saved as the final texture pattern, and outputting.

Further, when the pattern structure received by the material image is received, the pattern structure is obtained by receiving user input.

The pattern digital extraction and generation method provided by the invention has the following beneficial effects:

According to the invention, the material image is processed in an image processing mode to obtain the structure of the texture pattern, the existing partial textures are combined according to the structure to obtain the modified partial textures, the partial textures are perfected according to the characteristics of the pattern, the modified texture pattern is obtained according to the structure, and only a researcher only needs to adjust the repaired texture pattern when repairing, so that the labor cost and the time cost of research work are greatly saved, and the research efficiency is improved;

When the element patterns are extracted, the integrity of the texturing patterns is judged and divided, so that the obtained element patterns have the characteristic of single use, and meanwhile, the element patterns which can be extracted are relatively complete relative to the texturing patterns by dividing according to the whole and detail parts, the existing texturing patterns are fully utilized, and the resources in the texturing patterns are exerted to the greatest extent.

Drawings

FIG. 1 is a schematic block diagram of the overall process flow of the present invention;

FIG. 2 is a schematic block diagram of a method for obtaining a final pattern by detecting the integrity of a preliminary pattern and completing the preliminary pattern according to the present invention;

FIG. 3 is a schematic block diagram of another method for obtaining a final pattern by detecting the integrity of a preliminary pattern and completing the preliminary pattern according to the present invention;

FIG. 4 is a schematic block diagram of a method for comparing a preliminary pattern with a pattern name to obtain a distinguishing portion according to the present invention;

fig. 5 is a schematic block diagram of a process flow after the present invention has taken the preliminary texture pattern with all the distinctive portions removed as the final texture pattern.

Detailed Description

One embodiment of the present invention will be described in detail below with reference to the attached drawings, but it should be understood that the scope of the present invention is not limited by the embodiment.

In the present document, the types and structures of the components are not explicitly known in the prior art, and can be set by those skilled in the art according to the needs of the actual situation, and the embodiments of the present document are not specifically limited.

Specifically, as shown in fig. 1-5, the embodiment of the invention provides a method for digitally extracting and generating patterns, which specifically comprises the following steps:

firstly, extracting a paper material image from a stone tablet, scanning the paper material image to obtain a corresponding electronic material image, and setting a part without patterns in the material image to be transparent;

secondly, receiving a pattern structure received by the material image, dividing the material image into material parts according to the pattern structure, and obtaining the position relation among the material parts;

Sequentially overlapping the material parts into each layer in a translation or rotation mode or a combination mode of the two modes, so that the material parts of each layer are respectively aligned;

Combining the material parts of the layers to obtain a primary texture pattern, detecting the integrity of the primary texture pattern and completing the primary texture pattern to obtain a final texture pattern;

Fifthly, restoring the final texture pattern according to the pattern structure to obtain an overall texture pattern;

and (sixth) the whole texture pattern is corresponding to the material image and is output.

In the above technical solution, the steps (one) to (six) are sequentially performed according to the logic sequence, firstly, the existing original image is extracted, and since the cultural relics are underground throughout the year, and the obtained image is inevitably damaged mostly due to the corrosion of soil, namely the years, only the current image can be extracted by a machine, and the image is repaired according to the extracted image. In the step (one), the material image is extracted from the stone tablet in a rubbing manner, so that an original image on the stone tablet, that is, the material image of the present invention, is obtained, and at this time, the obtained material image of the present invention is incomplete. Therefore, step (II) obtains the pattern structure according to the existing material images, and the position relation among the materials in the pattern is the number of the uniform distribution of one material rotating round or the number of the matrix distribution of one material, and the pattern structure is the pattern structure. According to the pattern structure, the original single materials can be restored, the parts of the materials are overlapped according to the position relation, namely, the materials of the layers are respectively aligned in the step (III), thus, the combination of the layers can obtain a relatively complete material, namely, the preliminary texture pattern in the step (IV), and after the repair and perfection, the final texture pattern is obtained, the final texture pattern is taken as a material, and the restoration is carried out according to the pattern structure, so that the overall texture pattern can be obtained and output. Thus, the pattern on the surface of the cultural relic can be repaired in an automatic mode.

According to the invention, the material image is processed in an image processing mode to obtain the structure of the texture pattern, the existing partial textures are combined according to the structure to obtain the modified partial textures, the partial textures are perfected according to the characteristics of the pattern, the modified texture pattern is obtained according to the structure, and only a researcher only needs to adjust the repaired texture pattern when repairing, so that the labor cost and the time cost of research work are greatly saved, and the research efficiency is improved.

In the above technical solution, in the present invention, when detecting the integrity of the preliminary decoration pattern and completing the preliminary decoration pattern to obtain a final decoration pattern, the method includes the following steps:

(1) Displaying the preliminary texture pattern to a user, and simultaneously displaying the corresponding material image and each material part to the user;

(2) Receiving and storing modifications of the user on the preliminary texture pattern;

(3) And taking the finally saved primary texture pattern as the final texture pattern, and outputting.

In the above technical solution, steps (1) to (3) are sequentially performed according to a logic sequence, and the technical solution provides a certain reference for the user by displaying the preliminary decoration pattern to the user and displaying the corresponding material image, and receives the modification of the preliminary decoration pattern by the user, and simultaneously maintains the modified part and the original part, so that the final decoration pattern can be obtained, and the final decoration pattern is output. The final texture pattern thus obtained can be maximally consistent with the original pattern of the relic and has a positive effect on the original extraction.

Preferably, in order to make the visual effect more obvious when the user is repairing and lifting, the size of the preliminary decoration pattern, the size of the material image and the size of the material portions are respectively larger than the size of the material image and the size of the material portions when the preliminary decoration pattern, the material image and the size of the material portions are displayed to the user, the preliminary decoration pattern is displayed on the right side portion of the screen, and the material image and the material portions are displayed on the left side portion of the screen.

In addition, the invention also provides a technical scheme for repairing and extracting, which is completed in a machine automatic mode, namely, when the integrity of the preliminary texture pattern is detected and the preliminary texture pattern is completed to obtain a final texture pattern, the method comprises the following steps:

Obtaining a pattern name in the preliminary decoration pattern according to the preliminary decoration pattern, and obtaining a corresponding shape according to the pattern name;

Secondly, comparing the shape corresponding to the pattern name with the preliminary texturing pattern to obtain a distinguishing part;

< three > eliminating the distinguishing portion by making up for the end point of the free end on the preliminary texturing pattern;

And < fourth > the preliminary texturing pattern, from which the distinguishing portion is entirely eliminated, is taken as the final texturing pattern, and output is completed.

In the above technical solution, steps < one > to < four > are sequentially performed in a logic order, the current pattern is repaired by analyzing the pattern of the texture and the corresponding shape thereof, the distinguishing part is eliminated by making up the end point of the free end, and the pattern after the traversal is outputted as the final pattern of the texture. In this way, the preliminary texture pattern is repaired in a systematic and automatic manner, so that the corresponding elements can be extracted.

As a preferable mode of the above technical solution, when comparing the shape corresponding to the pattern name with the preliminary texturing pattern to obtain the distinguishing portion, the method includes the following steps:

<1> the preliminary pattern and the shape corresponding to the pattern name are respectively corresponding to the size such as perspective through a center symmetry mode;

<2> each pixel point in the shape corresponding to the pattern name is used as a circle center, and the length is set as a radius, so as to obtain a pixel point range;

And 3, merging pixel point ranges corresponding to all pixel points in the shape corresponding to the pattern name to obtain a pattern range;

<4> comparing the preliminary texturing pattern with the pattern range, the portion beyond the pattern range being the distinguishing portion.

In the above technical solution, steps <1> to <4> are sequentially performed according to a logic sequence, and for some rotated pattern structures, the preliminary pattern in each direction is subjected to size correspondence in a centrosymmetric manner, so that the sizes of the preliminary pattern are consistent when the patterns are overlapped in a perspective manner. And then limiting the range of the to-be-repaired sub-image by setting the radius of the pixel, so that a corresponding practical range which can be used as an expansion, namely an allowable error range, can be obtained, and the obtained distinguishing part is a part exceeding the range, so that the existing error is reasonably avoided.

Meanwhile, the above technical solution is further optimized, and after the preliminary texturing pattern with all the distinguishing portions eliminated is used as the final texturing pattern, the method comprises the following steps:

firstly), displaying the final texture pattern to a user, and simultaneously displaying the corresponding material image and each material part to the user;

Second), receiving and saving modifications of the user on the final textured pattern;

And thirdly) taking the final texture pattern which is finally saved as the final texture pattern, and outputting.

Fourth, in the present invention, the pattern structure received by the material image is obtained by receiving a user input.

In the technical scheme, the first to fourth steps are sequentially carried out according to the logic sequence, and the initial pattern automatically obtained by the system is repaired manually for the second time, so that the systematic and artificial work can be concentrated, and the optimal extraction effect is achieved.

When the element patterns are extracted, the integrity of the texturing patterns is judged and divided, so that the obtained element patterns have the characteristic of single use, and meanwhile, the element patterns which can be extracted are relatively complete relative to the texturing patterns by dividing according to the whole and detail parts, the existing texturing patterns are fully utilized, and the resources in the texturing patterns are exerted to the greatest extent.

The foregoing disclosure is merely illustrative of some embodiments of the invention, but the embodiments are not limited thereto, and any variations that may be contemplated by one skilled in the art should fall within the scope of the invention.

Claims (3)

1. The pattern digital extraction and generation method is characterized by comprising the following steps of:

Extracting a paper material image from the cultural relics, scanning the paper material image to obtain a corresponding electronic material image, and setting a part without patterns in the material image to be transparent;

receiving a pattern structure received by the material image, dividing the material image into material parts according to the pattern structure, and obtaining the position relation among the material parts;

sequentially overlapping all the material parts into all the layers in a translation or rotation mode or a combination mode of the two modes, so that the material parts of all the layers are aligned respectively;

Combining material parts of all layers to obtain a preliminary texture pattern, detecting the integrity of the preliminary texture pattern and completing the preliminary texture pattern to obtain a final texture pattern, wherein the size of the preliminary texture pattern, the size of the material images and the size of the material parts are respectively larger than the sizes of the material images and the sizes of the material parts when the preliminary texture pattern, the material images and the sizes of the material parts are displayed to a user, the preliminary texture pattern is displayed on the right side part of a screen, and the material images and the material parts are displayed on the left side part of the screen;

When detecting the integrity of the preliminary texturing pattern and completing the preliminary texturing pattern to obtain a final texturing pattern, the method comprises the following steps:

displaying the preliminary texture pattern to a user, and simultaneously displaying the corresponding material image and each material part to the user;

Receiving and storing modifications of the user on the preliminary texture pattern;

Obtaining a pattern name in the preliminary decoration pattern according to the preliminary decoration pattern, and obtaining a corresponding shape according to the pattern name;

comparing the shape corresponding to the pattern name with the preliminary texture pattern to obtain a distinguishing part;

Eliminating the distinguishing portion by making up for an end point of a free end on the preliminary texturing pattern;

taking the preliminary texture pattern with all the distinguishing parts eliminated as the final texture pattern, and completing output;

When the shape of the preliminary texture pattern corresponding to the pattern name is compared to obtain a distinguishing part, the method comprises the following steps:

Respectively carrying out perspective equal-size correspondence on the shape corresponding to the pattern name and the preliminary decoration pattern in a central symmetry mode;

setting the length as the radius by taking each pixel point in the shape corresponding to the pattern name as the circle center, and obtaining the pixel point range;

Combining pixel point ranges corresponding to all pixel points in the shape corresponding to the pattern name to obtain a pattern range;

Comparing the preliminary textured pattern with the pattern range, the portion exceeding the pattern range being the distinguishing portion;

reducing the final texture pattern according to the pattern structure to obtain an overall texture pattern;

and the integral texture pattern corresponds to the material image and is output.

2. A pattern digital extraction generating method according to claim 1, characterized in that after said preliminary texturing pattern, from which said distinguishing portion is entirely eliminated, is taken as said final texturing pattern, comprising the steps of:

Displaying the final texture pattern to a user, and simultaneously displaying the corresponding material image and each material part to the user;

receiving and saving modifications of the user on the final textured pattern;

And taking the final texture pattern which is finally saved as the final texture pattern, and outputting.

3. A pattern digital extraction generating method as claimed in claim 1, wherein the pattern structure received by said material image is obtained by receiving a user input.