JPH066582A - Partial picture reduction device - Google Patents

Abstract

PURPOSE:To employ the reduction method for a standard picture for this device by adding partial picture information to an address corresponding to a designated display area of a storage means corresponding to a reference area of a standard picture size and adding background information to areas corresponding to remaining areas, storing them and reducing them at a prescribed ratio. CONSTITUTION:A reproduction means 2 reproduces and a recording means 7 records standard, partial, reduction picture data (Sd, Pd, Cd) whose number of picture elements are respectively 2,000,000, 500,000 and 30,000 recorded on an optical disk 1 based on a designation of a video address designation means 9. Frame memories (M) 1-3 of a storage means 9 have a storage capacity of Sd, and a storage address means 8 designates a Pd storage address for the M1 corresponding to a display area of the Pd designated by a display area designation means 3. Background partial picture data are stored in addresses of other area except the Pd in the M1. Thus, the picture Cd with a prescribed reduction ratio transferred between the Ms by a reduction means 6 is obtained by providing background with the standard reduction method at the M3.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a partial image reducing device for forming a reduced image of a partial image.

[0002]

2. Description of the Related Art An image reducing device is disclosed in Japanese Patent Laid-Open No. 2653/1990.
As shown in Japanese Patent Publication No. 75-75, image information read from an image scanner that reads a document is stored in a frame memory, and the image information stored in the frame memory is read out.
There is one in which this is reduced, the obtained reduced image information is displayed on a display, the reduced image information is compressed, and recorded on a recording medium via a recording device.

[0003]

There are various kinds of image information in the above-mentioned image information, and in particular, the standard image information of the amount of information that can be displayed in the entire display area of a display, for example, a high-definition monitor, and the standard image information Speaking of partial image information with a small amount of information, when forming reduced image information of partial image information, it is necessary to form reduced image information for each partial image information of various information amount,
Compared to the case of forming reduced image information of standard image information,
There is a problem that complicated calculations must be performed.

Further, since the reduction ratio is constant in the case of reducing the standard image information to form the reduced image information and the case of reducing the partial image information to form the reduced image information, the formed reduced image is When two images are displayed side by side on a high-definition monitor, the size of the reduced image is different. Therefore, the reduced image of the standard image is displayed large, but the reduced image of the partial image is
The partial image is displayed in almost the same size as the reduced image of the standard image, and there is a problem that it is difficult for the viewer to distinguish whether or not it is a partial image.

Therefore, the present invention has been made in view of the above-mentioned problems, and the partial image reduction for reducing the partial image information to form the reduced image information by the same method as the method for reducing the standard image information. The purpose is to provide a device.

[0006]

SUMMARY OF THE INVENTION A partial image reducing apparatus of the present invention comprises image information consisting of standard image information or partial image information having a smaller amount of information than standard image information, and reduced image information obtained by reducing this image information. A recording medium for recording the image data, a reproducing means for reproducing the image information from the recording medium, a storage means for storing the reproduced image information, and the image information read from the storage means is reduced at a constant reduction rate. In an image reducing device having a reducing means for forming image information and a recording means for recording reduced image information obtained by the reducing means on the recording medium, a display area of a partial image with respect to a reference area of a standard image size. Display area designating means for storing the reproduced partial image information at the address of the storage means corresponding to the display area of the partial image, and a standard area for the standard image size. And background information adding means to the address of the corresponding said storage means to the remainder of the area except the display area of the partial image of the adding background information, those made by arranging respectively.

Further, the partial image reducing apparatus of the present invention specifies the image information generating means for generating the image information, the first storing means for storing the image information, and the selection area of the partial image with respect to the reference area of the image size. Selecting area designating means, extracting means for extracting partial image information corresponding to the selected area of the partial image from image information corresponding to the reference area of the image size, and display area designating means for designating the display area of the partial image, Second storage means for storing the partial image information extracted by the extracting means at an address corresponding to the display area of the partial image designated by the display area designating means in the standard area of the standard image size; With background information for adding background information to the address of the second storage means corresponding to the remaining area excluding the display area of the partial image in the reference area Means for reducing the standard image information read from the address of the second storage means corresponding to the standard area of the standard image size at a constant reduction rate to form reduced image information, and the reduced image information. A recording medium for recording and a recording unit for recording the reduced image information obtained by the reducing unit on the recording medium are respectively arranged.

[0008]

According to the present invention, the display area of the partial image is designated with respect to the standard area of the standard image size, and the partial image information is stored at the address of the storage means corresponding to the display area of the partial image. Background information is added to the address of the storage means corresponding to the remaining area excluding the display area of the partial image in the area, and this is reduced at a constant reduction ratio to form reduced image information, which is recorded on the recording medium. .

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The first and second embodiments in which the present invention is applied to a partial image reduction device will be described below. [1] First Embodiment FIG. 1 is a functional block diagram of a first embodiment of the present invention.

The operation of forming reduced image data of partial image data will be described below with reference to FIG. On the optical disc 1 (recording medium), standard image data having an amount of information that can be displayed in the entire display area of the high-definition monitor 13 (display unit), partial image data having a smaller amount of information than the standard image data, the standard image data, and the above There is an area for recording reduced image data obtained by reducing the partial image data. These image data are compressed and stored. Further, there is an area for recording the image size of the standard image data, the partial image data and the reduced image data.

For example, standard image data (for example, 1920 pixels in the horizontal direction H and 1035 pixels in the vertical direction V), partial image data (for example, 1000 pixels in the horizontal direction H, 500 pixels in the vertical direction V), and standard image data Reduced image data (for example, 240 pixels in the horizontal direction H, 1 in the vertical direction V)
28 pixels) are recorded (compressed), and those image sizes (for example, in the case of partial image data, 1000 pixels in the horizontal direction H and 500 pixels in the vertical direction V) are recorded.

The video address designating means 9 is the optical disc 1
And the image number of the compressed image data recorded on the optical disc 1 are designated. The optical disc drive (reproducing means 2) is driven to reproduce the compressed standard image data, partial image data, and reduced image data recorded on the optical disc 1. Based on the video address (disk number, image number) of the video address specifying means 9, the optical disk drive (reproducing means 2) reproduces the compressed image data recorded at the specified address. Alternatively, the optical disc drive (recording means 7) records the compressed image data at the designated address.

From the video address of the optical disk 1 designated by the video address designating means 9, for example, partial image data is read out via the optical disc drive (playback means 2) and supplied to the compression / expansion means 10. The compression / expansion means 10 functions to decompress the compressed image data reproduced by the optical disk drive (reproduction means 2) and compress the image data read from the storage means 4 by the optical disk drive (reproduction means). The compressed data of the partial image reproduced in 2) is decompressed before being input to the storage means 4.

The storage means 4 is, for example, three frame memories M1, M2, M3, and the storage capacity of each frame memory is, for example, 1920 pixels × 1035 pixels. The number of frame memories is not necessarily three, and may be set appropriately. The selection switching unit 12 selects one frame memory to be displayed among the frame memories M1, M2, M3 of the storage unit 4 and switches the image information stored in the frame memory.

The display area designating means 3 designates a partial image storage address in which the partial image data of the storage means 4 is stored, that is, a display area of the high-definition monitor 13 for displaying the entire standard image, that is, a reference area (horizontal direction H). At 192
For 0 pixels and 1035 pixels in the vertical direction V, the display area of the partial image of the high-definition monitor 13, that is, the display area (1000 pixels in the horizontal direction H, 500 pixels in the vertical direction V) is designated.

In order to set the display area at the center of the reference area and perform centering, the display area designating means 3 uses the optical disk drive (playback means 2) to drive the optical disk 1
The image size of the partial image (1000 pixels in the horizontal direction H, 500 pixels in the vertical direction V) and the image size of the standard image (1920 pixels in the horizontal direction H, V in the vertical direction) stored in
Read 1035 pixels) and perform the following calculation.

When the number of pixels in the horizontal direction H of the standard image is H0, the number of pixels in the vertical direction V is V0, the number of pixels in the horizontal direction H of the partial image is H1, and the number of pixels in the vertical direction V is V1.
Pixels of ((H0-H1) / 2, (V0-V1) / 2) and ((H0-H1) / 2 + H1, (V0-V1) /
2) pixel and ((H0-H1) / 2, (V0-V1)
/ 2 + V1) pixel and ((H0-H1) / 2 + H1,
A display area surrounded by (V0-V1) / 2 + V1) pixels is designated. H0 is 1920 and H1 is 1000
Since V0 is 1035 and V1 is 500, the display area is calculated as (860, 267),
(1860, 267), (860, 767), (186
0,767).

The storage address designating means 8 designates the storage address of the image to be stored in the storage means 4 based on the input display area information. The partial image storage address of, for example, the frame memory M1 of the storage unit 4 corresponding to the display area of the partial image designated by the display area designating unit 3 is designated. The partial image data is stored in the partial image storage address of the frame memory M1.

The background information generating means 11 is, for example, a memory for storing color data corresponding to red. Instead of the background information generating means 11, the background information as the standard image may be reproduced from the optical disc storing the red standard image data. The background information adding means 5 displays a partial image of the high-definition monitor 13 in the display area of the high-definition monitor 13 for displaying the entire standard image, that is, a reference area (1920 pixels in the horizontal direction H and 1035 pixels in the vertical direction V). It is a means for adding background information to the background image storage address corresponding to the area excluding the area (1000 pixels in the horizontal direction H, 500 pixels in the vertical direction V). Therefore,
The partial image storage address (the address of the storage means 4 corresponding to the display area for displaying the partial image) and the background image storage address (the reference area for displaying the entire standard image excluding the display area for displaying the partial image) correspond to each other. Standard image storage address (address of the storage unit 4) (storage unit 4 corresponding to a reference area for displaying the entire standard image)
Address), the background partial image data in which the background information is added to the partial image data is stored.

For example, the frame memory M1 of the storage means 4
Before storing the partial image data expanded by the compression / expansion means 10 in the partial image storage address specified by the centering processing by the display area specifying means 3, the storage address specifying means 8 determines the background information. Generating means 11
Color data input from the reference area (1 in the horizontal direction H
The standard image storage address of the frame memory M1 is designated so as to store the entire area of 920 pixels and 1035 pixels in the vertical direction V). The background information adding means 5 is the background information generating means 1
The standard image data (1920 pixels in the horizontal direction H and 1035 pixels in the vertical direction V) of, for example, the red standard image generated in 1 is read, and the read red standard image data is stored in the standard image storage address.

In this state, the partial image data expanded by the compression / expansion means 10 (1000 pixels in the horizontal direction H,
(500 pixels in the vertical direction V) is stored in the partial image storage address of the designated frame memory M1 by the centering process through the background information adding means 5. Therefore, the background image storage address obtained by removing the partial image storage address from the standard image storage address of the frame memory M1 is
Background information (red background image data) is stored, and background partial image data obtained by adding background information to partial image data is stored at a standard image storage address.

The reducing means 6 firstly includes the frame memory M1.
Background image data in which the background information is added to the partial image data by the background information adding means 5 from the standard image storage address (1) in the horizontal direction H and 1920 pixels in the vertical direction.
(35 pixels). For example, 11 pixels are excluded from the vertical direction V of the read background partial image data. That is, the background partial image data having 1920 pixels in the horizontal direction H and 1024 pixels in the vertical direction V is the reduction target. This background partial image data is divided into 240 × 128 blocks of 8 pixels × 8 pixels (240 × 8 = 1920, 128 × 8 = 102
4) Extract one arbitrary pixel and transfer it for each block between frame memories, store it in the frame memory M3, for example, and form reduced image data of background partial image data of 240 pixels × 128 pixels. Therefore, the background partial image data is reduced at a constant reduction rate (1/64). Note that the obtained reduced image data may be directly input to the compression / expansion means 10 without being stored in the frame memory M3.

The optical disk drive (recording means 7) reads the reduced image data of the background image data stored in the frame memory M3 to the compression / expansion means 10 and compresses it, and records the compressed reduced image data on the optical disk 9. Drive to do it. As described above, the reduced image data of the partial image data recorded on the optical disc 9 and the reduced image data of the standard image data that have already been recorded are read out side by side, for example, to the frame memory M1, and the selection switching means When the frame memory M1 is selected with and is displayed on the high-definition monitor 13, the viewer can easily see that the reduced image with a red background is a reduced image of the partial image.

The sizes of the partial images may be divided into groups in stages, and the background image may be changed for each group.
For example, for a partial image whose size is less than 500 pixels × 250 pixels, the background is a yellow image. The size of the partial image is 500 pixels x 250 pixels or more, 100
For a partial image of less than 0 pixels × 500 pixels, the background is a blue image. Partial image size is 1000 pixels ×
For a partial image of 500 pixels or more and less than 1500 pixels × 750 pixels, the background is a red image. A green image may be used as a background for a partial image having a size of 1500 pixels × 750 pixels or more and less than 1920 pixels × 1035 pixels.

[2] Second Embodiment In the above-mentioned first embodiment, the partial image cut out in advance is stored in the optical disc, and only the reduced image is formed and recorded. However, the partial image is not always recorded from the beginning. It does not always exist, and it is also necessary for the operator to specify and cut out a partial image. Therefore, in the second embodiment, a configuration will be described in which an image read by an image scanner is displayed on a monitor, a partial image is designated and cut out, and the cut out partial image is immediately reduced.

FIG. 2 is a functional block diagram of the second embodiment of the present invention. Since common functional blocks exist in FIG. 2 and FIG. 1, the same blocks will be denoted by the same reference numerals and redundant description will be omitted, and only the features of the second embodiment will be described below. The image information generating means 14 (image scanner) reads original images of various sizes,
Generates image data with various amounts of information. For example, A
125 original images of 4 sizes (29.7 cm x 21 cm)
When read at DPI resolution, 1461 pixels x 1033
Pixels (29.7 × 125 ÷ 2.54≈1461 pixels, 2
Image data of 1 × 125 ÷ 2.54≈1033 pixels) is generated.

The first storage means 15 stores the image data (1461 pixels × 1) generated by the image information generating means 14.
033 pixels) are stored. For example, the frame memory M1 has a storage capacity of 1920 pixels × 1035 pixels, for example. The capacity of the frame memory M1 may be set appropriately. The image area designating unit 18 calculates the image size of the image data generated by the image scanner 13 based on the size (A4 size) of the original image and the resolution (125 DPI) input by the operator. In response to this, the storage address designating means 8 designates the address (original image storage address) of the first storage means 15 (frame memory M1) for storing the image data.

Therefore, the image data generated by the image information generating means 14 is stored in the first storage means 15 (frame memory M1). The selection switching means 12 selects the first storage means 15 that stores the image data, so that the display device 13 (for example, a high-definition monitor)
When the original image is displayed on the screen, the operator determines the area where the original image is displayed, that is, the reference area of the original image (1461 pixels x 1
Of 033 pixels), a display area, that is, a selection area (for example, 10
00 pixels × 500 pixels) is selected area specifying means 16
, For example, by inputting coordinates. Therefore, the selection area is designated. In response to this, the storage address designating means 8
Specifies the partial image storage address of the first storage means 15 corresponding to the selected area.

The extraction means 17 is the first storage means 15 described above.
The image data stored in the original image storage address of the (frame memory M1) is stored in the partial image storage address of the first storage means 15 corresponding to the display area of the partial image designated by the selection area designating means 16. The extracted partial image data is extracted. Hereinafter, similarly to the first embodiment,
The second storage means 4 (for example, the frame memories M2 and M) designated by the display area designation means 3 (centering processing)
The partial image data extracted by the extracting means 17 is stored in the storage address of 3), and the standard image in which, for example, red background information is added to the partial image data and background information is added to the partial image data The background partial image data of the size is formed (background information adding means 5). The background partial image data is reduced at a constant reduction rate (reduction means), compressed by the compression / expansion means 10, and recorded in the storage medium 1 (recording means 7).

The circuit (function) blocks of each of the above-described embodiments may be configured by software or hardware as necessary, and the present invention includes some aspect. Needless to say. Furthermore, the present embodiment is merely an example of the present invention, and various modifications can be made if necessary, and the present invention described in the claims includes all such modifications.

[0031]

According to the present invention, the reduced image information of the partial image information can be formed by the same method as the reduced image information of the standard image information. Also, by adding a background to the remaining portion of the reduced image of the partial image contained within the size of the reduced image of the standard image, it is possible to display the reduced image of the formed partial image side by side with the reduced image of the standard image. , It is obvious to the viewer that it is a reduced image of a partial image.

[Brief description of drawings]

FIG. 1 is a functional block diagram of a first embodiment of the present invention.

FIG. 2 is a functional block diagram of a second embodiment of the present invention.

[Explanation of symbols]

 1 Recording Medium 2 Playback Means 3 Area Designating Means 4 Storage Means 5 Background Information Adding Means 6 Reduction Means 7 Recording Means

Claims (3)

[Claims] 1. A recording medium (1) for recording partial image information having a smaller amount of information than standard image information and reduced image information obtained by reducing standard image information, and a portion stored in the recording medium (1). The reproduction means (2) for reproducing the image information, the display area specifying means (3) for specifying the display area of the partial image, and the partial image specified by the display area specifying means (3) for the standard area of the standard image size. Is read from the storage means (4) for storing the partial image information reproduced by the reproduction means (2) at the address corresponding to the display area and the address of the storage means (4) corresponding to the standard area of the standard image size. Reducing means (6) for reducing standard image information to be reduced at a constant reduction rate to form reduced image information, and reduced image information obtained by the reducing means (6) is recorded on the recording medium (1). Recording and means (7), partial image reduction apparatus comprising by arranging respectively. 2. A recording medium (1) for recording image information consisting of standard image information or partial image information having a smaller amount of information than standard image information and reduced image information obtained by reducing this image information, and this recording medium. Reproduction means (2) for reproducing the image information, storage means (4) for storing the reproduced image information, and image information read out from the storage means (4) is reduced at a constant reduction ratio to obtain a reduced image. An image reducing apparatus provided with a reducing means (6) for forming information and a recording means (7) for recording reduced image information obtained by the reducing means (6) on the recording medium (1) Display area designating means (3) for designating a display area of the partial image with respect to the reference area of the image size and storing the reproduced partial image information at the address of the storage means (4) corresponding to the display area of the partial image; Picture Background information adding means for adding the background information to the address of the storage means (4) corresponding to the remaining area except the display area of the partial image of the reference area size (5)
Partial image reduction device consisting of and. 3. An image information generation means (14) for generating image information, a first storage means (15) for storing image information, and a selection area for designating a selection area of a partial image with respect to an image size reference area. Designating means (16), extracting means (17) for extracting partial image information corresponding to the selected area of the partial image from image information corresponding to the reference area of the image size, and display area designation for designating the display area of the partial image The partial image information extracted by the extracting unit (17) is stored in the address corresponding to the display area of the partial image designated by the display area designating unit (3) of the unit (3) and the standard area of the standard image size. Second storage means (4) and second storage means (4) corresponding to the remaining area excluding the display area of the partial image in the standard area of the standard image size.
Background information adding means (5) for adding background information to the address of the standard image information read from the address of the second storage means (4) corresponding to the standard area of the standard image size at a constant reduction rate. Reducing means (6) for reducing and forming reduced image information, recording medium (1) for recording reduced image information, and reduced image information obtained by the reducing means (6) is recorded on the recording medium (1). And a recording means (7) for performing the partial image reduction device.