JP2000268163A - Image processing device and recording medium - Google Patents

Abstract

(57) Abstract: The present invention relates to an image processing apparatus and a recording medium for registering and displaying a high-definition image, and creating and registering an image having a plurality of levels of resolution in the high-definition image, It is an object of the present invention to quickly read an image having a resolution that matches a designated condition and display the image. SOLUTION: Means for sequentially creating images with lower resolution levels based on high-definition images, and associating or combining the created images of each resolution level with the original high-definition images. Means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to an image processing apparatus and a recording medium for registering and displaying a high-definition image.

[0002]

2. Description of the Related Art Conventionally, when a high-definition image is recorded on a large-capacity recording medium such as a DVD-ROM and read out to be displayed on a screen or printed, 16,000.times.16.0
In the case of 00 pixels, if each image is represented by one byte for each of RGB (3 bytes in total), one image has an extremely large capacity of about 768 MB. If the reading was performed in S, the display could not be performed until about 6 minutes or more had elapsed.

[0003]

Conventionally, as described above, a high-definition image has a very large capacity, and a large-capacity DV.
Even if it is registered in a D-ROM or the like, there is a problem that it takes a long time to read, and it is not possible to read out and display or print quickly.

[0004] The present invention solves these problems,
An object of the present invention is to create and register an image having a plurality of levels of resolution as a high-definition image, quickly read out an image having a resolution that meets a designated condition, and display the image.

[0005]

Means for solving the problem will be described with reference to FIG. In FIG. 1, a high definition image 2 is a high definition image.

The next level image creating means 3 creates an image of a predetermined resolution level. The thumbnail creating means 4 creates a thumbnail image.

The file combining means 5 combines the high-definition image 2 and images of a plurality of resolution levels into a multi-layer resolution level image 6. The display means 7 reads out the image of the requested resolution level from the multi-layer resolution level image 6 and displays it on the display device 8.

Next, the operation will be described. The next-level image creating means 3 creates images sequentially lowering the resolution level based on the high-definition image 2, and the file combining means 5 associates the created images of each resolution level with the original high-definition image 2. ,
Or they are combined and put together.

At this time, the high-definition image 2 and the image of each resolution level are divided into blocks, and one or both of the compression processing and the encryption processing are performed on a block basis.

Further, after the number of pixels of the high-definition image 2 or the image of the higher resolution level is reduced to generate an image of the lower resolution level, smoothing processing is performed. Further, the thumbnail creating means 4 creates a thumbnail image by reducing the number of pixels from the high-definition image 2 or an image at an arbitrary resolution level, and combines it with the high-definition image 2 or an image at each resolution level.

Further, the display means 7 is the closest to the number of pixels of the read image or a pixel of the image from the recording medium in which the high-definition image and the image of the resolution level in which the number of pixels of the high-definition image are reduced are registered. A high-definition image 2 having the smallest number of pixels or an image with an arbitrary resolution that satisfies the number is determined, read, and displayed.

Further, when the resolution of the read image does not match the required resolution, the number of pixels is increased or decreased. The display means 7 displays a thumbnail image list, reads out an image of a predetermined resolution level corresponding to the selected thumbnail image, and displays the thumbnail image in a reduced size.

Therefore, it is possible to create and register an image of a plurality of levels of resolution in the high-definition image 2 and quickly read and display an image having a resolution that meets or is close to a designated condition. .

[0014]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments and operations of the present invention will now be described in detail with reference to FIGS.

FIG. 1 shows a system configuration diagram of the present invention.
In FIG. 1, an image scanning means 1 scans a picture or various materials drawn on paper to generate a high-definition image.

The high-definition image 2 is an original image generated by being scanned by the image scanning means 1 with high definition and stored in the storage device. The next level image creating means 3 creates an image of a predetermined resolution level with a reduced number of pixels based on the high definition image 2.

The thumbnail creating means 4 creates a so-called thumbnail image having a low number of pixels, which schematically represents the high-definition image 2 registered in the storage device. The file combining unit 5 combines the high-definition image 2 and the created images of a plurality of resolution levels to form a multi-layer resolution level image 6.

The multi-level resolution level image 6 is a combination of the high definition image 2 and the resolution level image. The display means 7 reads out the image of the requested resolution level from the multi-layer resolution level image 6 and displays it on the display device 8.

The display device 8 displays an image or the like. Next, according to the order of the flowchart of FIG.
The procedure for creating and registering a multi-level resolution level image with the configuration described above will be described in detail.

FIG. 2 is a flowchart illustrating the operation of the present invention. In FIG. 2, S1 performs scan reading. In this method, the image scanning means 1 shown in FIG. 1 scans a picture or a material drawn on paper with high definition and takes in a high definition image (original image).

In step S2, the image is stored as an image at the resolution level of level 1. In this method, the high-definition image (original image) 2 captured in S1 is stored as an image having a resolution level of level 1 (original image not subjected to compression, image processing, etc.).

S3 is designated. This is based on the image of the resolution level of the level 1, the level 2, 3 and 4 to be created
.. Are specified when creating an image of the resolution level of...

: Which original image to use: Where to save: Designation of minimum resolution level: Creation of resolution level with 75% reduction (default designation): Thumbnail creation (default designation): Whether to compress each block: Whether to encrypt each block: Whether to combine them into one file or whether to create a separate file: Whether or not image processing is possible (eg, smoothing processing) This specifies whether to create an image with a resolution level of.

The location where the image is to be stored specifies the location where the image of the created resolution level is to be stored. The minimum resolution level designates a minimum resolution level at which images of lower resolution levels are sequentially created and the processing is terminated.

The creation of an image at a resolution level with a 75% reduction is specified by default, and is an instruction to create an image at the next resolution level with a 75% reduction sequentially.

The thumbnail creation is specified by default, and specifies whether to create a thumbnail. Whether to compress each block is specified as to whether or not to compress the image at the resolution level in block units.

Whether each block is to be encrypted is a designation of whether to encrypt each block.・ Specifies whether to combine them into one or to create a separate file.

Whether or not image processing can be performed is a designation of whether or not to perform image processing (for example, smoothing processing). S
No. 4 performs a next level image creation process for all levels.
Here, the processing includes the following processing shown in the figure.

(A): Reduction processing (b): Image processing (c): Division processing (no minimum resolution level) (d): Compression processing (e): Encryption processing (f): Block combination processing (minimum resolution) (There is no level.) Here, the reduction process of (a) is a process of reducing the number of pixels so that the number of pixels at the corresponding resolution level is obtained.

The image processing (b) is an image processing such as smoothing. The division process (c) is a process of dividing the high-definition image 2 or an image of any resolution level into blocks.

The compression processing (d) is processing for compressing the data in block units to reduce the capacity. -The encryption processing of (e) is processing for encrypting in block units.

The block combining process (f) is a process of combining blocks to combine images of different resolution levels. In step S5, a thumbnail creation process is performed. This creates a thumbnail image with a low number of pixels created from the high definition image 2 or the like.

In step S6, all files and thumbnails are combined. As described above, the levels 2, 3, and 4 in which the number of pixels is reduced based on the image (original image) at the resolution level of level 1
.. Are sequentially created, and thumbnail images are created and combined to form a DVD-
It becomes possible to register in a RAM or the like.

FIG. 3 is an explanatory diagram (reduced) of the present invention.
This is a process of reducing 4 × 4 pixels to 3 × 3 pixels indicated by diagonal lines in the high-definition image 2 or the image of the resolution level corresponding to the resolution level creation at a 75% reduction ratio as specified in FIG. Is schematically represented.

As described above, a high-definition image (16,000
× 16,000 pixels) 2 is reduced by 75% to level 2,
It is possible to sequentially create images at resolution levels of 3, 4,....

FIG. 4 shows an explanatory diagram (smoothing process) of the present invention. This means that when it is specified that the image processing in FIG. 2 can be performed, a smoothing process is performed in which, for example, the average value of nine peripheral pixels around the target pixel is obtained and the value of the target pixel is obtained. 4 schematically illustrates how jaggedness caused by the reduction processing in FIG. 3 is corrected.

As described above, it is possible to improve the image quality by performing image processing such as smoothing on the image after the reduction processing and the like. FIG. 5 shows an explanatory diagram (division) of the present invention. This is a schematic representation of how a reduced image or the like is divided into blocks. Here, the division of 512 × 384 pixels into one block is repeated, and blocks 1, 2, 3,. .., And how block numbers are assigned.

As described above, by dividing an image into blocks, it becomes possible to compress or encrypt each block. FIG. 6 shows an explanatory diagram (compression) of the present invention. This shows a state in which, after being divided into blocks in FIG. 5, compression is performed in block units (for example, JPEG compression).

As described above, the image can be efficiently compressed by dividing the image into blocks and compressing each block. FIG. 7 shows an explanatory diagram (encryption) of the present invention. This shows a state in which, after being divided into blocks in FIG. 5, encryption is performed in units of blocks (for example, DES encryption).

As described above, the image can be efficiently encrypted by blocking the image and encrypting each block. FIG. 8 is an explanatory diagram (block combination) of the present invention. This shows a state in which an image is divided into blocks, compressed and encrypted in block units, and then combined into one file. Here, ・ Basic information: ・ Image name: ・ Copyright information: ・ File combination + offset: ・ File information: ・ Block division: ・ Block compression method (eg JPEG): ・ Block encryption + encryption Formatting: Image processing (smoothing): Block information 1... N: Thumbnail information: Blocks 1 to n (image data for each block): Thumbnail (image data): Register to file 1, 2, ...
Create Here, a high-definition image (original image) 2 is registered in the file 1, an image of the resolution level of the label 2 is registered in the file 2, an image of the resolution level of the label 3 is registered in the file 3, and As one file A (see FIG. 10).

As described above, the information created when the basic information and the file information are created (information such as whether or not there is block division).
Are registered and combined and registered as one file, it is possible to collectively manage the high-definition image 2, the image of the resolution level of level 2, the image of the resolution level of level 3, and so on. Images that sometimes meet the required resolution can be quickly read.

FIG. 9 shows an example of an input screen according to the present invention. This is a screen for inputting various specifications when images are created and combined as shown in FIG. 8. Here, the following information shown in the drawing is input and specified. In the figure, “か ら” corresponds to designation (input) of the same number in S3 of FIG.

..: An input field for inputting (designating) an input file name. Here, the file A to be read and used is designated. *: An input field for inputting (specifying) a storage destination. Here, "Drive: D: // Directory: Group 1" File name: File A is input (specified).

..: An input field for inputting a screen resolution. Here, 1600 × 1200 pixels are input. ..: An input field for inputting a block compression method. Here, the compression method is “JPEG” and the image quality is “standard”.
Is entered.

·: An input field for inputting the presence / absence of encryption. Here, “yes” is input for encryption. ..: An input field for inputting whether or not the same file (combined into one file) is used. Here, it is input that the files are to be the same file.

..: An input field for inputting the presence / absence of image processing. In this example, "YES" is input for image processing. By inputting the above-mentioned designation of S3 in FIG. 2 on the input screen shown above, the high-definition image 2, the image of the resolution level of level 2 and the level 3 ,..., Thumbnail images, etc., and automatically register them in one file or the like.

FIG. 10 shows an example of a file according to the present invention. This schematically shows a state in which an image created according to the procedure of FIG. 2 described above is stored. Here, the input field of the storage destination in FIG. 9 described above. Drive: D: / Directory: Group 1 File name: A In response to the input and designation, the storage destination of “'in FIG. File A is registered as shown in FIG. Here, the file A stores images + thumbnails of all resolution levels.

As described above, it is possible to combine the created images of all resolution levels + thumbnail images into one file and save it. FIG. 11 shows an image explanatory diagram of the present invention. Here, the original image (high-definition image): the image of the resolution level:: the image displayed on the screen: Where the rectangle is
A state in which the block is divided is schematically shown. The original image (high-definition image 2) is a high-definition image, for example, 16000 ×
This is an image having an extremely large number of pixels of 16000 pixels. The image at the resolution level is, for example, an image sequentially reduced by, for example, 75% of the original image as described above. The original image and the image of the resolution level are each divided into blocks as shown in the figure. The screen display image is an image having the same resolution as the screen and is not divided into blocks, and has the minimum resolution level of S3 in FIG. 2 described above.

As described above, in accordance with the flowchart of FIG. 2 described above, images of the resolution level are sequentially created by reducing the original image (high-definition image 2) by 75%, and up to the screen display image. At the time of display, a screen display image can be taken out and displayed immediately on the screen, and an image of a high resolution level and an original image (high-definition image 2) can be taken out and printed as needed. It is possible to cut out and display a part.

FIG. 12 shows an explanatory diagram (thumbnail image) of the present invention. This shows a state where the screen display image is reduced (blurred) and a thumbnail image is created. here,
The screen display image is an image having the same number of pixels as the screen resolution, and is the screen display image of FIG.
It is an image composed of 1600 × 1200 pixels.

As described above, it is possible to reduce the screen display image and create a thumbnail image. FIG.
3 shows a display flowchart of the present invention.

In FIG. 13, S11 specifies a display image. Here, one of the following shown in the figure is designated. -Specification of file name:-Specification of directory name: In S12, it is determined whether or not a file name is specified. In the case of YES, the process proceeds to S13 because the file name has been designated. N
In the case of O, since the directory name was specified, S1
In step 4, the default image is extracted from the setting file, and
Proceed to 3.

In step S13, a screen display image is extracted and a thumbnail image is extracted. In step S15, a reduced image is created. This creates a reduced image (see FIG. 14) obtained by reducing the screen display image taken out in S13.

In step S16, a display is made. As a result, as shown in FIG. 14, which will be described later, a screen display image: a reduced image of the screen display image: a thumbnail image:

A step S17 decides whether or not another thumbnail has been selected. In the case of YES, the process returns to S13, and the extraction of the corresponding screen display image and thumbnail image is repeated. On the other hand, in the case of NO, the process proceeds to S18.

In step S18, it is determined whether the track bar has been moved. This is determined by, for example, whether a track bar at the lower right of the screen in FIG. 14 described later has been moved. In the case of YES, the process proceeds to S19. If NO, the process returns to S17 and repeats.

In step S19, the screen display image is enlarged and displayed.
In this case, since the track bar is moved and the enlarged display is instructed by YES in S18, the enlarged display image currently displayed is enlarged and displayed.

In step S20, it is determined whether the track bar has been released. In the case of YES, it is determined that the track bar has been released.
Proceed to 2. If NO, the process returns to S19 and repeats.

In step S22, a resolution level image one step higher than the size enlarged by the enlargement magnification is determined. This is shown in FIG.
By moving the track bar of No. 4, the image displayed on the screen is enlarged and displayed, and an image having a resolution level one step higher than the enlargement magnification at that time is determined to be displayed.

In step S23, the offset position of the image at the resolution level is determined from the basic information. This is the same as FIG.
Of the image of the resolution level determined in S22 in the basic information of the corresponding file.

In step S24, file information and block information are extracted from the offset position. A step S25 reads the blocks belonging to the display image. In this case, as shown in FIG. 15 described later, a block to which a screen image (an image having a range equal to the screen resolution) belongs is read out from an image of the determined resolution level.

In step S26, decoding + decompression + cutout is performed. This is for the data of the block read in S25.
When it is encrypted, it is decrypted. When it is compressed, it is decrypted and expanded, and a portion equal to the number of pixels of the display image is cut out.

In step S27, a display image is output for each line of the number of blocks. A step S28 decides whether or not all the blocks have been processed. In the case of YES, the process returns to S16 and is displayed on the screen. On the other hand, if NO, the process returns to S25 and repeats.

As described above, the screen display image is taken out from the designated file (directory) and displayed on the screen, and the reduced image ヲ display and the thumbnail image obtained by reducing the screen display image are displayed as shown in FIG. indicate. With these three images displayed, the track bar is moved to enlarge the screen display image, and when the track bar is released, an image at a resolution level one step higher than the enlargement magnification at that time is taken out. By cutting out the display image and displaying it on the screen, it is possible to read an image of an arbitrary enlarged image at a resolution level one step higher and quickly display it.

FIG. 14 shows a display example of the present invention. The following three images shown in the figure are displayed on the screen.・ Screen display image: ・ Reduced image of screen display image: ・ Thumbnail image Here, as described in FIG. 13, when the track bar is moved to enlarge the screen display image, and when the track bar is released, the display is enlarged. By extracting an image at a resolution level having a resolution one step higher than the enlargement ratio of, and extracting and displaying a screen display image from the image at this resolution level, an enlarged high-quality image can be displayed.

FIG. 15 shows an explanatory diagram (display image) of the present invention. Here, a state in which a display image (an image equal to the number of pixels of the screen) to be displayed on the screen is cut out from the image at the resolution level one step higher than the enlargement ratio determined in S22 of FIG. The cut-out display image can be displayed on the entire surface with high quality equal to the number of pixels on the screen.

[0067]

As described above, according to the present invention,
An image having a plurality of levels of resolution is created and registered in the high-definition image 2, and an image having a resolution matching or close to a specified condition can be quickly read out and displayed. This makes it possible to quickly read and display a high-resolution huge image on a display device for operations such as enlargement / reduction.

[Brief description of the drawings]

FIG. 1 is a system configuration diagram of the present invention.

FIG. 2 is a flowchart illustrating the operation of the present invention.

FIG. 3 is an explanatory diagram (reduced) of the present invention.

FIG. 4 is an explanatory diagram (smoothing process) of the present invention.

FIG. 5 is an explanatory diagram (division) of the present invention.

FIG. 6 is an explanatory diagram (compression) of the present invention.

FIG. 7 is an explanatory diagram (encryption) of the present invention.

FIG. 8 is an explanatory diagram (block combination) of the present invention.

FIG. 9 is an example of an input screen according to the present invention.

FIG. 10 is an example of a file according to the present invention.

FIG. 11 is an explanatory diagram of an image according to the present invention.

FIG. 12 is an explanatory diagram (a thumbnail image) of the present invention.

FIG. 13 is a display flowchart of the present invention.

FIG. 14 is a display example of the present invention.

FIG. 15 is an explanatory diagram (display image) of the present invention.

[Explanation of symbols]

 2: High definition image 3: Next level screen creating means 4: Thumbnail creating means 5: File combining means 6: Multi-layer resolution level image 7: Display means 8: Display device

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Yoshiyuki Fukano 98 Uno Ki-nu, Unoki-cho, Hebei-gun, Ishikawa Pref. 5B075 ND06 NR16 PP13 PQ02 PQ46 PQ48 5C076 AA12 AA19 AA21 AA22 AA32 AA36 BA06 BA09 BB06 CB02 5C078 AA04 BA21 BA42 CA27 CA47

Claims (9)

[Claims] 1. An image processing apparatus for registering a high-definition image, comprising: means for generating an image having a sequentially lower resolution level based on the high-definition image; An image processing apparatus comprising: means for associating with a high-definition image, or combining and combining them. 2. The image processing apparatus according to claim 1, further comprising means for dividing the high-definition image and the image at each resolution level into blocks, and performing one or both of a compression process and an encryption process for each block. The image processing apparatus according to claim 1. 3. The image processing apparatus according to claim 1, wherein the number of pixels of the high-definition image or the image of the higher resolution level is reduced to generate an image of the lower resolution level, and then smoothing processing is performed. apparatus. 4. The method according to claim 1, wherein the number of pixels is reduced from the high-definition image or the image at an arbitrary resolution level to create a thumbnail image, and the thumbnail image is combined with the high-definition image or the image at each resolution level. The image processing device according to claim 1. 5. An image processing apparatus for displaying an image, comprising: a recording medium for registering a high-definition image and an image of a resolution level in which the number of pixels of the high-definition image is reduced; Means for determining the closest high-definition image or the image of any resolution that satisfies the minimum number of pixels that satisfies the number of pixels of the image; and the high-definition image of the determined resolution or the image of a predetermined resolution level. An image processing apparatus comprising: a reading unit; and a unit configured to display based on the read image. 6. The image processing apparatus according to claim 5, further comprising means for increasing or decreasing the number of pixels when the resolution of the read image does not match the required resolution. 7. A screen for displaying an image, and a window provided in the screen for displaying a thumbnail image list and reading out an image of a predetermined resolution level corresponding to the selected thumbnail image and reducing and displaying the image. The image processing apparatus according to claim 5, wherein: 8. A means for creating an image having a sequentially lowered resolution level based on a high-definition image, and associating or combining the created image of each resolution level with an original high-definition image. A computer-readable recording medium on which a program for functioning as a unit is stored. 9. A means for determining a high-definition image or an image of an arbitrary resolution which is closest to the number of pixels of the read image or which has the least number of pixels satisfying the number of pixels of the image; A computer-readable recording medium on which a program for functioning as a means for reading the high-definition image or the image of a predetermined resolution level from the recording medium is recorded.