JP2669996B2 - Image reduction device and reduced image display method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

FIELD OF THE INVENTION The present invention forms a reduced image of an image.
Image reduction device and reduced image display method
is there.

[0002]

2. Description of the Related Art Japanese Patent Application Laid-Open No. 2-2653 discloses an image reduction apparatus.
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 Regarding the partial image information having a small information amount, when forming the reduced image information of the partial image information, it is necessary to form the reduced image information for each partial image information of various information amounts,
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 in 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 differs. Therefore, the reduced image of the standard image is displayed larger, 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 reduces the partial image information to form a reduced image by the same method as the method of reducing the standard image information.
An object is to provide an image reducing device . In addition,
Akira is a reduced image of standard image information and a reduced image of partial image information.
To provide a way for the image to be easily identified by the viewer.
aimed to.

[0006]

An image reducing apparatus according to the present invention is provided.
A storage means (4) for storing image information;
It was read from the standard area of standard image size of column (4).
Reduction means for reducing image information to form a reduced image (6)
And the partial image information is stored in the reference area of the storage means (4).
And size conversion means (5) to be stored in
It is arranged. Furthermore, the image reduction device of the present invention
Indicates whether the standard image information and the partial image information are stored in the recording medium (1).
Playback means (2) for playback from
Recording the reduced image created on the recording medium (1).
Recording means (7). Furthermore, the present invention
Image reduction device of the standard image information and partial image information.
The image input means (14) to be pressed and the reduction means (6)
Recording the reduced image created on the recording medium (1)
And means (7). Furthermore, according to the present invention
In the image reduction apparatus, the size conversion means (5) may be configured to include
In the reference area corresponding to the standard image size of the storage means (4)
And store the partial image in this area.
To add background information to the area corresponding to the remaining area
It is characterized by being a step. Furthermore, the image reduction device of the present invention
The size conversion means (5) is provided in the storage means.
Background in the reference area corresponding to the standard image size of (4)
After storing the information, the partial image
Is a means for storing.

Also, the reduced image display method of the present invention is
Differentiate the reduced image of the image information from the reduced image of the standard image information
And information for displaying the information. Change
In addition, the reduced image display method of the present invention reduces the partial image information.
By adding background information to the image, the standard image information
It is characterized by being distinguished from a reduced image. Furthermore, according to the present invention
The reduced image display method includes
Background information corresponding to the size of minute image information is added,
Reduced image of image information and reduced image of partial image information of each size
It is characterized by distinguishing it from an image.

[0008]

According to the present invention, the partial image is converted by the size conversion means.
Image information is stored in the standard area of the standard image size of the storage means
And reducing the image information read from the reference area
Form a reduced image. Furthermore, according to the present invention, a recording medium
Image information reproduced from the standard image size of the storage means
Stored in the reference area and read from the reference area
The image information is reduced to form a reduced image, and the reduced
Record. Furthermore, according to the present invention, the input from the input means
The stored image information is stored in a standard area of a standard image size in the storage means.
Image information read out from the reference area
The image is reduced to form a reduced image and recorded on a recording medium. Change
According to the present invention, the size conversion unit may store the
Partial image within the reference area corresponding to the standard image size of the
The image is memorized, and the remaining area excluding this memory area
Background information is added to the part corresponding to the area. Furthermore, the book
According to the invention, the size conversion unit is provided in the storage unit.
Write background information in the reference area corresponding to the standard image size.
Then, the partial image is stored in the reference area.
You. Further, according to the present invention, the reduced image of the partial image information
Information is added to distinguish the standard image information from the reduced image.
To display. Furthermore, according to the present invention, reduction of partial image information
Background information is added to the small image and displayed. Furthermore, the present invention
According to this, the reduced image of the partial image information is added to the reduced image of the partial image information.
The background information corresponding to the size is added and displayed.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment and a second embodiment in which the present invention is applied to a partial image reducing apparatus 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 disk 1 (recording medium), standard image data having an information amount that can be displayed on the entire display area of the high-vision monitor 13 (display means), partial image data having an information amount smaller than the standard image data, 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 their 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. The optical disk drive (reproducing means 2) reproduces the compressed image data recorded at the specified address based on the video address (disk number, image number) of the video address specifying means 9. 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. Note that the number of frame memories is not necessarily three, and may be set as appropriate. The selection switching unit 12 selects one frame memory to be displayed from the frame memories M1, M2, and 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, ie, 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-vision monitor 13, that is, the display area (1000 pixels in the horizontal direction H and 500 pixels in the vertical direction V) is designated.

In order to set the display area at the center of the reference area and center the display area, the display area designating means 3 sends the information to the optical disk 1 via the optical disk drive (reproducing means 2).
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,
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.
((H0-H1) / 2, (V0-V1) / 2) pixels 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 (address of the storage unit 4 corresponding to the display area for displaying the partial image) and the background image storage address (corresponding to the area excluding the display area for displaying the partial image from the reference area for displaying the entire standard image) 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 of (No.
(35 pixels). For example, 11 pixels are excluded from the vertical direction V of the read background 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) An arbitrary one pixel is extracted, and the extracted one pixel is stored in, for example, the frame memory M3 by block-to-frame transfer, thereby forming reduced image data of the 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 and displayed on the high-vision monitor 13, the viewer can see at a glance 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. 2 and FIG. 1, there are common functional blocks. Therefore, 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 the resolution of DPI, 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 × 1035 pixels, for example. Note that the capacity of the frame memory M1 may be set as appropriate. 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 input from the operator and the resolution (125 DPI). 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 extracting means 17 is provided in the first storage means 15
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 Background portion image data of the size is formed (background information adding means 5). The background partial image data is reduced at a fixed reduction ratio (reducing means), data is compressed by the compression / expansion means 10, and is recorded on 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. Further, the present embodiment is merely an exemplification of the present invention, and various changes can be made as necessary, and the present invention described in the claims encompasses all such changes.

[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 the 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 (8)

(57) [Claims] A storage means for storing image information;
From the standard area of the standard image size of the storage means (4)
Reduction to form a reduced image by reducing the read image information
Means (6) and storing the partial image information in front of said storage means (4).
Size conversion means (5) for storing in the reference area;
An image reduction device in which each is arranged. 2. A recording medium for recording standard image information and partial image information.
Reproducing means (2) for reproducing from the body (1), and said reducing means
The reduced image created in (6) is stored in the recording medium (1).
Recording means (7) for recording
The image reducing device according to claim 1. 3. Inputting standard image information and partial image information.
The image input means (14) and the reduction means (6)
Recording means for recording the created reduced image on the recording medium (1)
The image reduction according to claim 1, further comprising (7).
apparatus. 4. The size conversion means (5) is configured to store the memory.
Within the reference area corresponding to the standard image size of means (4)
Partial images are stored and this storage area is removed.
Means for adding background information to a portion corresponding to the remaining area
The image reduction device according to claim 1, wherein 5. The storage device according to claim 1, wherein said size conversion means comprises:
In the reference area corresponding to the standard image size of the means (4)
After storing the background information, the part
The means for storing an image according to claim 1.
Image reduction device. 6. A reduced image and partial image information of standard image information.
A reduced image display method for displaying a reduced image of
The reduced image of minute image information is the same as the reduced image of standard image information.
It is characterized in that information for distinguishing is added and displayed.
Reduced image display method. 7. Background information is attached to a reduced image of partial image information.
In addition, it is characterized by distinguishing it from a reduced image of standard image information.
The reduced image display method according to claim 6. 8. The reduced image of the partial image information is the partial image.
The background information corresponding to the size of the information is added to the standard image information.
The reduced image of the report and the reduced image of the partial image information of each size
7. The reduced image display method according to claim 6, wherein the reduced images are distinguished.
Law.