JPS62251970A - Document picture processor - Google Patents

Abstract

PURPOSE:To minimize a storage area by registering retrieved information including desired working information, reading the retrieved information from a data storing device, processing picture data and displaying, and thereby registering picture data to be magnified and reduced together with the original picture data. CONSTITUTION:Dot width in (x) direction of a window magnified and displayed is made x1, and dot width in (y) direction is made y1. Page control record 41 to be displayed is read from a retrieval information file and the extent of display in a CRT is determined for each magnification ratio 41b. For instance, in the case of magnification of two times, 2x1X, 2y1 dots are reduced respectively to 1/2 through a thinning circuit 14 to display picture data on an image memory 11 of 2x1, 2y1 dot width in the width of (x1, y1). At the time when magnification ratio is one time, for instance, the picture data of 16 dots/mm are displayed in the CRT 3 of 4 dots/mm based on the size 41a of the record. Accordingly, the result of reduction thinned once every 4 dots is transferred to a video memory 12. Thereby, the storage area can be minimized.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a document image processing apparatus that electronically processes a document as image data.

[Prior Art] Conventionally, this type of document image processing device reads an image using an image scanner and then displays the image on a display.
Thereafter, it is registered in a storage device such as an optical disk device.

When displaying this, if the size of the manual manuscript is 85 or A4 size, it will be displayed on the display in approximately the actual size, and
When the size of the image is 4 or A3, the image is reduced and displayed so that the entire image can fit on the display.

When enlarging or reducing this image, the memory for storing image data read from the original (hereinafter referred to as image memory) and the memory for displaying (hereinafter referred to as video memory) should be physically different. Therefore, there is no need to enlarge/reduce the contents of the image memory even if the image is enlarged/reduced. Therefore, when registering image data to an optical disk device, etc., enlarge/1i! Even if the display is made smaller, the image data of the read original image can be registered. This means that even if the registration operator is interested in the enlarged/reduced image as well as the original image data, the image data of both images must be registered. This means that a large amount of storage area of a storage device such as an optical disk for image data is required.

On the other hand, if you save storage space and register only the original image data and do not store and register the image data of the enlarged/reduced image, when you want the enlarged/reduced display image, it will not be stored and registered in the storage device. The original image data must be displayed and the enlargement/reduction operations must be performed again. In other words, in order to enlarge the display, it is necessary to move the frame cursor again using, for example, a pointing device, and then use an enlargement function key to enlarge it. Since it is not always possible to move to the previous position, it is not always possible to obtain the same enlarged image as before.

[Problems to be Solved by the Invention] The present invention has been made in view of the above-mentioned problems of the prior art, and its purpose is to be able to register enlarged or reduced image data together with the original image data, and to store the data necessary for storage. This paper proposes a document image IA processing device that requires a minimum amount of storage space.

[Means for Solving the Problems] A document image processing device of the present invention for achieving the above-mentioned problems includes an image data storage means for storing read image data, and search information for retrieving the image data as a file. a search information storage means for storing the search information; and a registration for storing the search information in the search information storage means in a form including processing information for performing predetermined image processing, and storing and registering the image data in the image data storage means. an image processing means for reading image data from the image data storage means based on the search information and processing the image data based on the processing information; and a display means for displaying the processed image data.

[Operation] In the above drawing, at the time of registration, search information is registered in a form that includes desired processing information. Further, when the processed image is to be displayed on the display means, the image data is read from the image data storage means based on the search information including the processed information, and the processing means processes the image data based on the processed information. Display on display means.

[Embodiments] Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a block diagram showing the configuration of an embodiment of a document image processing apparatus to which the present invention is applied. Reference numeral 1 denotes a control unit that performs main control of the system, and as described later, it contains μmCPtJ.
(microcomputer).

It has built-in RAM (Random Access Memory), ROM (Read Only Memory), etc. 2 is a typewriter keyboard (T
W), 3 is a CRT display section (C
4 is a pointing device (PD) used to manually specify a position on the display screen, 5 is an image reader (IR) for inputting images, and 6 is an optical disk that stores a large amount of document image data in a non-rewritable manner. A device (OD), 7 is a disk device (DSK) for storing search information of document image data stored in the optical disk device 6, and 8 is an image printer (PR) for printing high quality documents. 9
is an I10 bus, which connects the above 2 to 8 to the control section 1. The input section of the above system is TW2. PD4. IR
5, the display section is from CRT3, and the storage section is from OD6. DS
The output section is composed of K7 and PR8, respectively.

FIG. 2 is a layout diagram centered on the control section 1 in the above-described embodiment. In this figure, reference numeral 11 denotes an image memory for storing document image data, which stores document image data read from the image reader 5 or the optical disk device 6. 1
2 is a video memory for the CRT3, and this memory 12
The bits of CRT3 are displayed in black or white depending on the bit value (#1", "0"). ft. Image memory 1
1. A video memory 12 is provided inside the control unit 1.

Reference numeral 13 denotes a μm CPU such as a microcomputer that controls the control unit 1 and, by extension, the entire system. Further, 15 is a ROM that stores a control procedure program according to the embodiment;
16 is a RAM that stores various data; 14 is a thinning circuit that thins out bits from the image data stored in the image memory 11;

In this embodiment, the resolution of the image data read by the IR 5 is higher than the resolution of the CRT 3. Therefore, if the read image data is moved as it is to the video memory 12 and displayed on the CRT 3, an enlarged image can be obtained, whereas if the bits are thinned out via the thinning circuit 14, an arbitrary reduced image can be obtained. become.

Figure 3 shows that an A4 size original is sent from the IR5, or its image data is sent from the optical disk device 6 at a rate of 1.
When reading at a resolution of 6 dots, image memory 1
1 is a diagram illustrating the state of the image memory 11 when it is expanded into 1. In Figure 3, “A” and “B” are shown as an example.
, "C", and "D" are stored. (xl.

yl) etc. are stored from the image memory 11 to the video memory 12.
This is the transfer start position when transferring to.

Figures 4 (a) to (C) show the A4 size image shown in Figure 3 taken in the horizontal direction (X direction) and vertical direction (X direction) by 1/4 from the position (xz, y2). If you thin out the number by 1, without thinning (xl

y+), 1 from (X3, y3)
/2 is thinned out. Image memory 11 is 3
The video memory 12 has a size of 456 dots x 4677 dots, and since the resolution of the video memory 12 is 1/4 that of the image memory 12, it has a size of 864 dots x 1168 dots. Therefore, if the image is thinned out, it will become as shown in FIG. 4(a) or (C), and if it is not thinned out, it will be enlarged more than the original image as shown in FIG. 4(b).

5 and 6 are diagrams explaining the collection of files when search information for searching image data registered on the optical disc 6 is stored as a file in the DSK 7, and FIG. A management record is shown, and FIG. 6 shows a page management record.

A document management record represents a link to a page management record. The 4'O configuration of the document management record in FIG. 5 consists of a keyword 31a of the image data and a link address 31b to the page management record (FIG. 6) of the image data having that keyword.

FIG. 6 shows a page management record, which consists of a size 41a that is the size of one page of a document, an enlargement ratio 41b to be displayed on the CRT 3, an image coordinate 41c that is the starting coordinate in the image memory 11, and an optical disk 6. A document storage position 41d1 in which a link address 41e to the next page is stored. The page management records are 41a and 41b above.
, 41c, 41d, and 41e form one record,
The code manages information for one page of a document. The size 41a records the document size of the page. The amount of information developed in the image memory 11 is determined by this size. The magnification rate 41b refers to the magnification rate for the original image displayed on the CRT 3 when the page is registered in the OD6, and in this embodiment, it is 1 times (1/4 thinning) and 2 times (1/2) the actual size. (thinning) and 4 times (no thinning). The image coordinates 41c are the coordinates of the upper left corner of the portion to be enlarged, and are the relative dot positions when the upper left corner of the image is (0,0) as shown in FIG. The document storage position 41d is the address of the image of the page stored in the optical disk device 6, and is recorded as the address of the first sector (S) and the last sector (E). The next page link address 41e stores the address of a record in which information about the next page is stored if a subsequent page exists. If the content of 41e is °'FF'', it indicates that there is no next page. In other words, it indicates that the record is information on the last page. - For example, the keyword KEY-At/
The page management record of the first page of the image of EY-C1 in KEY-B2/ is stored at address a in DSK7, its enlargement ratio is 41, the image coordinates are (x+, y+), and the image data is stored on optical disk 6. 4.1), the link address of the second page is a2, and so on.

Reference numeral 51 in FIG. 7 is a table containing the number of dots in the X direction and the X direction for each document, and is stored in the RAM 16 in the control section 1. In this embodiment, for simplicity, the table is only for the case where the resolution is 16 dots per 1 mm.

Next, the enlarged image registration/display operation according to this embodiment will be described with reference to the flowcharts shown in FIGS. 8 and 9. A program for such a control procedure is stored in the ROM 15. First, we will begin by explaining the registration of the enlarged image shown in FIG.

In step S1, the size of the image to be registered, the position information (S and E) of where the image is stored in the optical disk device 6, the display enlargement state on the CRT 3, image coordinates, etc. are obtained from the RAM 16. . This information is available in TW2. This is input from the PD4 or the like during the registration process. Then, in step S2, "FF" is set in the link address field of the next page and recorded in the search information file as a one-page management record. Subsequently, in step S4, it is determined which page of the document the page management record just recorded belongs to. If it is the first page, the process advances to step S5 and the link address to the first page of the document management record 31 is updated. If it is after the second page or before the last page, step S
6, the link address of the next page of the record corresponding to the previous page of the page management record 41 is updated.

In this way, as long as the original images are the same, a plurality of images with arbitrary enlargement/reduction ratios are registered, and in that case, only one image data is recorded on the optical disc 6, with only an increase in search information.

Next, the operation of displaying an enlarged image will be explained with reference to FIG. For convenience of explanation, the enlarged display window (Fig. 4(b)
, (C)), the dot width in the X direction is X+, and the dot width in the X direction is yl. Alternatively, the resolution capability of the CRT 3 for displaying is set to 4 dots per 1v++.

First, in step S7, the page management record 41 to be displayed is read from the search information file. The range to be displayed on the CRT 3 is determined for each enlargement rate 41b of the page management record (step S8). If the magnification rate is 2x, from step S9 onwards, 2Xx, dot width,
2Xy+ dot width image data on the image memory 11 (X+.

In order to display the width of yl), the 2Xx dot and the 2xyI dot are reduced to 1/2. That is, step S
Bits are taken out at 1 dot intervals in the X direction from the X value of the image coordinate 41c by the IO, and are thinned out by the thinning circuit 14. Further, in step Stt, the image pressure is thinned out by extracting the image pressure at intervals of one dot in the X direction from the y value of the chart 41c.

If the magnification rate is 4x, the display range in the X direction is set to X in step S12.

The display range in the X direction is y1 dots. In other words, x1 dot and yl dot are xl dot,
yl It is displayed in the width of the dot, so there is no need to reduce (enlarge) it if it is 4 times the size.If the magnification is 1 times, in step S13, the table 51 is displayed based on the record size 41a read in step S7. , and obtain the number of dots in the X direction and the number of dots in the X direction according to the size. Since it is a 1x display, that is, an actual size display, and 16 dots/mm image data is displayed on a 4 dots/mm CRT3, it is necessary to reduce the dot width in each of the X and X directions to 1/4. be. In other words, the number of dots in the X direction is 1 in 4 dots.
Take out and thin out in batches.

Further, in step S15, dots in the X direction are also taken out every four dots. In step S16, the reduced result is transferred to the memory 12, and the target image is displayed on the CRT 3.

In the above embodiment, only an image of 16 dots per 1 mm was explained, but 1. 12 dots per mm,
In the case of 8 dots, resolution information may be added to the page management record, and the thinning rate may be changed or enlarged depending on the resolution.

As described above, according to the above embodiment, the total amount of image data read by the manual section is recorded on the optical disc device of the size of the original as in the past, but when it is registered in an enlarged state on the CRT, Since it is enlarged and displayed during a search, it has the effect of making it appear as if a pseudo-enlarged portion has been registered, which is effective in reducing the recording area of the optical disk device.

Also, if you try to enlarge a target part using the conventional method, you have to specify the part you want to enlarge in some way and then instruct it to enlarge.If you want to enlarge the same part every time you search, However, if you use the above embodiment, you can always zoom in when searching and if there is a part you want to refer to, you can zoom in at the time of registration and then register, and when searching, you do not have to do any operations such as deciding the zoom position. becomes unnecessary.

Another advantage is that since portions other than the enlarged portion are also recorded on the optical disk device, it is possible to display the image in its original actual size.

Note that although the above embodiment has been described using enlargement/reduction as an example, the present invention is not limited to enlargement/reduction and may be applied to general image processing.

[Effects of the Invention] As explained above, according to the present invention, search information is registered in a form that includes desired processed information at the time of registration, and when it is desired to display a processed image on a display means, the processed information is The image data is read from the image data storage means based on the included search information, and the processing means can process the image data based on the processing information and display it on the display means, and the image data is stored in the image data storage means as a result. Only one image data is required, and the storage area is small.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the configuration of a document image processing apparatus according to an embodiment of the present invention; FIG. 2 is a block diagram of the configuration of a control section of the embodiment shown in FIG. 1; FIGS. 3 and 4 (a) to 4). (c) is an explanatory diagram of the operation of the embodiment, Figures 5 and 6 are configuration diagrams of the search information file, Figure 7 is a configuration diagram of display size parameters for each document size, and Figures 8 and 9 are diagrams of the configuration of the search information file. 7 is a flowchart showing an enlarged image registration and display operation of the invention. In the figure, 1...control unit, 2...TW, 3...CRT
, 4...PD, 5...IR, 6...-00, 7...
-DSK, 8...PR, 11...image memory,
12...Video memory, 13I"μ-CPU, 51
a, 61 a... Frame indicating the enlarged range, 61.7
1... Window, 31... Document management record, 31
a...Keyword, 31b...Address of the first page, 41...Page management record, 41a...Size, 41b...Enlargement ratio, 41c...Image coordinates, 41
d...Document storage position, 41e...Next page link address, 51...Document size table, 51a.
...Size, 51b...Number of dots in X direction, 51c...
・This is the number of dots in the y direction. Fig. 2 Fig. 3 Fig. 4 (a) ('b) Fig. 4 (C) Fig. 5 Fig. 6 fA7 Fig. 510

Claims (4)

[Claims] (1) Image data storage means for storing read image data, search information storage means for storing search information for searching the image data as a file, and processing information for performing predetermined image processing. a registration means for storing the search information in the search information storage means and storing and registering the image data in the image data storage means; and a registration means for reading the image data from the image data storage means based on the search information and converting it into the processed information. What is claimed is: 1. A document image processing device comprising: an image processing means for processing the image data based on the image data; and a display means for displaying the processed image data. (2) The document image processing device according to claim 1, wherein the image data storage means is an optical disk device or a magnetic disk device. (3) The document image processing device according to claim 1, wherein the processing of image data is enlargement or reduction. (4) The document image processing apparatus according to claim 3, wherein the processing information includes an enlargement or reduction magnification and a display start position on the display means.