JPH0676043A - Display controller - Google Patents

Abstract

PURPOSE:To display an image in a proper size with a proper resolution by setting the display size of the image in accordance with the resolution of a display means and the reduction/enlargement rate of the image and displaying the image in accordance with this display size. CONSTITUTION:A first processing step of a program as the input means which inputs the reduction/enlargement rate of the image and a display device 5 as the display means on which the image is displayed are provided. Further, a second processing step of the program as the detecting means which detects the resolution of the display device 5 and a third processing step of the program as the setting means which sets the display size of the image in accordance with the detected resolution of the display device 5 and the inputted reduction/ enlargement rate are provided. The image is displayed on the display device 5 in accordance with the display size set by the processing step of the program. That is, the image is displayed in the display size set in accordance with the resolution of the display device 5 and the reduction/enlargement rate of the image.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display control device suitable for use in an electronic filing device for electronically filing a standard document such as A4 or B4 and displaying the document as needed.

[0002]

2. Description of the Related Art In recent years, as the amount of documents such as documents, materials, and reports handled in offices has increased, an electronic filing device for electronically filing and managing documents has been used for paperless and space saving. It has become possible to be.

In this electronic filing apparatus, a document is converted into image data by, for example, an image scanner, and is associated with an ID code for identifying (discriminating) the document and recorded as a database on a recording medium such as a magneto-optical disk. It is possible to do (electronic filing). Then, when a predetermined ID code is designated, the document corresponding to the ID code is read (retrieved) from the magneto-optical disk and displayed on a CRT or printed out.

[0004]

The resolution of a document converted into image data by an image scanner is as follows.
For example, while the resolution is 400 DPI (dots / inch), the resolution of CRT is generally about 100 DPI. Therefore, for example, a document such as A4
When displaying on a CRT with the same resolution, there is a problem that the document is displayed larger than the actual size (A4) and cannot fit on the CRT.

Therefore, for example, four adjacent pixels (for example, pixels a ₁₁ , a ₁₂ , a ₂₁ , and a ₂₂ ) forming image data of 400 DPI as shown in FIG. This is represented by the pixel a ₁₁ ), that is, the image data is decimated to ½, and 200 shown in FIG.
There is a method of reducing the resolution of the DPI image data so that the document is displayed in the actual size.

However, in this method, the value of thinning out the image data is fixed such as 1/2, and even the CRTs having the same resolution have different display area sizes. Therefore, depending on the CRT, there are cases where the document is out of the display area, or even if the document can be displayed entirely in the display area, the resolution is poor and the content of the document cannot be read.

In such a case, in order to check (see) a document that is out of the display area of the CRT or a document whose resolution is poor and whose contents cannot be read, the document displayed on the CRT must be moved or enlarged or reduced. Must be done
There is a problem that makes the user feel annoyed.

The present invention has been made in view of such a situation, and is intended to enable an image to be displayed at an appropriate resolution and size without causing the user to feel bothersome. is there.

[0009]

A display control apparatus according to claim 1, wherein program processing steps S4 to S6 as an input means for inputting a reduction / enlargement ratio of an image, and a display as a display means for displaying the image. 5, the processing steps S1 to S3 of the program as a detecting means for detecting the resolution of the display 5, the resolution of the display 5 detected by the processing steps S1 to S3 of the program, and the processing steps S4 to S6 of the program. And a processing step S8 of the program as a setting means for setting the display size of the image corresponding to the reduction / enlargement ratio, and the display 5 displays the image according to the display size set by the processing step S8 of the program. It is characterized by doing.

According to a second aspect of the present invention, the display control device causes the processing steps S4 to S6 of the program to refer to the reduction / enlargement ratio of the image described in a predetermined file.

A display control device according to a third aspect of the present invention manages a magneto-optical disk 12 as a recording medium on which a plurality of images are recorded and a position at which the plurality of images are recorded on the magneto-optical disk 12. An index file 20 as means is further provided, and the index file 20 is made to further manage the reduction / enlargement ratio corresponding to each of a plurality of images, and is managed by the index file 20 in processing steps S4 to S6 of the program.
It is characterized in that the reduction / enlargement ratio corresponding to each of the plurality of images is referred to.

A display control apparatus according to a fourth aspect of the invention controls a magneto-optical disk 12 as a recording medium on which a document composed of at least one image is recorded and a position where the document is recorded on the magneto-optical disk 12. An index file 20 as a management means for managing is further provided, and the index file 20 is made to further manage the reduction / enlargement ratio corresponding to the document, and the processing steps S4 to S6 of the program are performed.
Is referred to the reduction / enlargement ratio corresponding to the document managed by the index file 20.

[0013]

In the display control apparatus according to the first aspect, the reduction / enlargement ratio of the image is input and the resolution of the display 5 is detected. Then, the display size of the image is set corresponding to the resolution of the display 5 and the reduction / enlargement ratio of the image, and the image is displayed according to the display size. Therefore, an image can be displayed with an appropriate resolution and size without causing the user to feel bothersome.

In the display control device according to the second aspect, since the reduction / enlargement ratio of the image described in the predetermined file is referred to, the predetermined file describing the reduction / enlargement ratio of the image only needs to be created once. It is possible to prevent the user from feeling annoyed.

In the display control device according to the third aspect, the reduction / enlargement ratio corresponding to each of the plurality of images, which is managed in the index file 20 together with the positions of the plurality of images recorded in the magneto-optical disk 12. Is referred to. Therefore, each image can be displayed with a resolution and size suitable for each image.

In the display control device according to the fourth aspect, the reduction of the document consisting of at least one image, which is managed in the index file 20 together with the position recorded in the magneto-optical disk 12, is reduced. Reference is made to magnification. Therefore, the document can be displayed with the resolution and size suitable for the document.

[0017]

1 is a block diagram showing the configuration of an embodiment of an electronic filing device to which a display control device of the present invention is applied. The CPU 1 reads the RA from the ROM 2 when the device is activated.
The entire apparatus is controlled according to the system program transferred to the M3 (including, for example, an operating system and a window system for window control).
A system program is stored in the ROM 2.
The RAM 3 stores a system program stored in the ROM 2, an image of a document (image data) supplied from the magneto-optical disk 12 or the scanner 8 via the printer scanner buffer 6, and data necessary for the operation of the apparatus. .

The display buffer 4 temporarily stores display data such as image data, graphic data, and character data of a document supplied from the RAM 3 according to a command from the CPU 1 and outputs the display data to the display 5. Display 5
Has a resolution of 100 DPI, for example, and displays a document, graphics, characters, etc. corresponding to the display data output from the display buffer 4.

The printer scanner buffer 6 temporarily stores the image data of the document output from the scanner 8,
Supply to RAM3. Further, the printer scanner buffer 6 temporarily stores print data output from the RAM 3 according to a command from the CPU 1 and supplies the print data to the printer 7. The printer 7 prints out a document, graphics, characters, etc. corresponding to the print data supplied from the printer scanner buffer 6. Scanner 8
Is a character or figure on a paper, that is, a document, for example, 400DP
The image is read at a predetermined resolution such as I, the image is converted into image data (digital data), and the image data is output to the printer scanner buffer 6.

The keyboard / mouse interface 9 is
It manages the keyboard 10 and the mouse 11 instead of the CPU 1. The keyboard 10 is operated, for example, when a command is input or when an ID code of a document recorded in the magneto-optical disk 12 is searched, and the mouse 11 is displayed on the display 5. This is operated when clicking a button (for example, the file shelf buttons 21 to 23, the search button 24, and the end button 25 in FIG. 4 or 5).

Image data of a document such as a document, a material, or a report read by the scanner 8 is recorded on the magneto-optical disk 12, and the position where the image data is recorded is managed, which will be described later. The index file 20 (FIG. 2) is recorded.

As described above, the resolution of the document has a resolution of, for example, 400 DPI, so that the image data has an enormous amount of data. Therefore, the image data of the document is compressed and recorded on the magneto-optical disk 12.

That is, for example, when the document is composed of 5 pages (sheets), the magneto-optical disk 12 has a structure as shown in FIG.
Image data D1 to D5 in which images of pages 1 to 5 are compressed are sequentially recorded.

Index file 20 for managing this
As shown in FIG. 2, is a header composed of an ID code of a document (image data D1 to D5), a file name of the document, and a directory name in which it is recorded, and a start address (data of the image data D1 to D5. D
Image data D1 to D from the first address of 1)
5 each of the head addresses, that is, offset addresses of the image data D1 to D5, and index data P1 to P5 having the data size of the image data D1 to D5.

Here, the start address of the image data D1 to D5 (start address of the data D1), that is, the segment address of the image data D1 to D5, is the file name of the document in the header of the index file 20 and the recorded name. It is designed to be given by the directory name.

Therefore, when a document recorded on the magneto-optical disk 12 is searched by this apparatus, for example, when the ID code is input from the keyboard 10, the index file 20 recorded on the magneto-optical disk 12 is searched. The header is referenced. Then, it is determined whether or not the ID code in the header of the index file 20 matches the input ID code. When they match, the header of the index file 20 and the index data P1 to P5 are referred to, and the image data D
1 to D5 are read from the magneto-optical disk 12 and RA
It is stored in M3.

When displaying the documents (image data D1 to D5) retrieved in this way and stored in the RAM 3, first, in step S1 shown in FIG. 3, an environment variable declaration file for setting the environment of the apparatus is created. Referenced,
It is determined whether or not the resolution of the display 5 is declared (set in the environment variable) in the environment variable declaration file.
When it is determined in step S1 that the resolution of the display 5 is declared in the environment variable declaration file, the process proceeds to step S2, and the variable X indicating the resolution of the display 5 is declared (set) in the environment variable declaration file. Is set and the process proceeds to step S4. When it is determined in step S1 that the resolution of the display 5 is not declared in the environment variable declaration file, the process proceeds to step S3, and the variable X indicating the resolution of the display 5 is displayed.
Then, for example, 100 DPI is set as the resolution (default resolution) of a general display, and the process proceeds to step S4.

When the resolution of the display 5 is declared (set in the environment variable) in the environment variable declaration file, the environment variable indicating the resolution of the display 5 is, for example, DISPLAYDPI, and the environment variable setting command is setenv. , And the resolution of display 5 is 100
DPI means, for example, setenv DISPLAYDPI 100 and a case described in the environment variable declaration file.

In step S4, the environment variable declaration file is referred to again, and it is determined whether or not the reduction / enlargement ratio of the document displayed on the display 5 is declared (set in the environment variable) in the environment variable declaration file. Step S4
In step S5, when it is determined that the reduction / enlargement ratio of the document displayed on the display 5 is declared in the environment variable declaration file, the process proceeds to step S5, and the variable Y indicating the reduction / enlargement ratio of the document is set in the environment variable declaration file. The declared (set) value is set and the process proceeds to step S5. Step S
4, when it is determined that the reduction / enlargement ratio of the document displayed on the display 5 is not declared in the environment variable declaration file, the process proceeds to step S6, and the variable Y indicating the resolution of the display 5 is set to the default value, For example, 100% that is neither enlarged nor reduced is set, and step S7 is performed.
Proceed to.

When the reduction / enlargement ratio of the document displayed on the display 5 is declared (set in the environment variable) in the environment variable declaration file, the environment variable indicating the reduction / enlargement ratio of the document is set to IMAGESIZE, for example. Setenv the environment variable setting command, and the reduction / enlargement ratio of the document,
For example, if it is set to 75% (area is reduced to 3/4 of the original size), for example, setenv IMAGESIZE 75 is described in the environment variable declaration file.

As described above, after the resolution of the display 5 is set in the variable X and the reduction / enlargement ratio of the document is set in the variable Y, the process proceeds to step S7, and the image data D1 to An image (image data) to be displayed on the display 5 is selected from D5 (FIG. 2), and the process proceeds to step S8.

In step S8, the display size for displaying the image selected in step S7 on the display 5 is set (calculated) in accordance with the resolution of the display 5 and the reduction / enlargement ratio of the image to be displayed.

That is, in step S8, the size of the image data (the vertical dot number DOT _V or the horizontal dot number DOT _H ) of the image, the resolution of the image data (resolution of the scanner 8) C, and the step are known in advance. Based on the resolution of the display 5 set to the variable X in S2 or S3 and the reduction / enlargement ratio of the image (document) displayed in the display 5 set to the variable Y in step S5 or S6, the image displayed on the display 5 ( The display size of the document) (the number of vertical dots DIS _V or the number of horizontal dots DIS _{H of} the image displayed on the display 5) is DIS _V = DOT _V × (X / C) × (Y / 100
[%]) Or DIS _H = DOT _H × (X / C) × (Y / 100 [%]), and the display size (the number of vertical dots of the image displayed on the display 5 DIS _V
Alternatively, based on the horizontal dot number DIS _H , the original image is thinned out as described above (FIGS. 6 and 7), and the process proceeds to step S9.

In step S9, the vertical dot number DO
An image composed of T _V and horizontal dot number DOT _H is thinned out, and an image with vertical dot number DIS _V and horizontal dot number DIS _H is displayed on the display 5, and step S10 is performed.
Then, it is determined whether or not there is an image to be displayed. If it is determined in step S10 that there is an image to be further displayed, that is, if another page (image) of the retrieved document is to be displayed, the process returns to step S7 and there is no page (image) to be further displayed in step S10. Until determination is made, steps S7 to S10
The process of is repeated.

If it is determined in step S10 that there is no further page (image) to be displayed, that is, if another page (image) of the retrieved document is not displayed,
The process ends.

FIG. 4 shows an image of the document retrieved by the above-mentioned processing displayed on the display 5. In FIG. 4, the file shelf buttons 21 to 23 are
This is operated when the image of the document is captured by the scanner 8 and recorded on the magneto-optical disk 12. That is, when one of the file shelf buttons 21 to 23 is clicked with the mouse 11 when the image of the document is recorded on the magneto-optical disk 12, the image of the document is displayed on the file shelf buttons 21 to 23 of the magneto-optical disk 12. Is recorded in the area corresponding to the file shelf clicked with the mouse 11 in the area corresponding to.

Further, in FIG. 4, a search button 24
Is operated when searching for a document recorded on the magneto-optical disk 12, and the end button 25 is operated when ending the operation of the apparatus. Further, the fixed enlargement button 27 or the arbitrary enlargement button 28 in the window 26 is displayed in the window 26 at a fixed magnification (a magnification set in advance in the apparatus) or an arbitrary magnification (a magnification input from the keyboard 10). When enlarging the image
The print button 29 is operated respectively and is operated when the retrieved document (the document including the image displayed in the window 26) is printed by the printer 7.

For the image displayed in the window 26 of FIG. 4, the resolution of the display 5 and the reduction / enlargement ratio of the image displayed on the display 5 are declared in the environment variable declaration file for setting the environment of the device. If not, then step S3 or S of FIG.
6, the resolution of the display 5 or the reduction / enlargement ratio of the image is 100 DPI or 1 of the default value, respectively.
It is set to 00%.

Therefore, in this case, the resolution of the image recorded on the magneto-optical disk 12 is, for example, 40.
If it is 0 DPI, the actual size (the size of the document as paper) is displayed on the display 5 with a resolution of 100 DPI.
In order to display the image at (zoom ratio 100%),
The original image (image having a resolution of 400 DPI) is thinned out and displayed in step S8.

As described above, when the image is displayed on the display 5 in the actual size, the contents of the displayed portion can be confirmed, but the hidden portion (which cannot be displayed) (see FIG. In order to see the image (eg, the lower part of the image) displayed in the window 26, the window 26 must be moved, for example. Also, if the actual size of this image is larger than the display 5, to see the whole image at once,
For example, click the arbitrary enlargement button 28 with the mouse to
It is necessary to input a reduction / enlargement ratio such as% from the keyboard 10 to reduce and display the image, and performing these operations for each image makes the user feel troublesome.

Therefore, in such a case, in order to reduce the size of the image and display the entire image on the display 5, the environment variable declaration file is declared (describe) as, for example, setenv DISPLAYDPI 100 setenv IMAGESIZE 75. I'll do it. As a result, in step S2 or S5 of FIG. 3, the resolution of the display 5 or the reduction / enlargement ratio of the image is set to 100 DPI or 75% described in the environment variable declaration file, respectively, and the resolution recorded in the magneto-optical disk 12 is set. The image of 400DPI is thinned out, and the whole image is 100D in resolution.
In the window 31 opened on the PI display 5,
The size is displayed at 75% of the actual size (size of the document as paper) (FIG. 5).

Further, as described above, when not displaying the entire image but displaying a part of the image in an enlarged manner, the environment variable declaration file declares, for example, setenv DISPLAYPLE DPI 100 setenv IMAGESIZE 125 ( If described, the image will always be displayed at a size of 125% of its actual size (size of document as paper).

The case where the display control device of the present invention is applied to an electronic filing device has been described above, but the present invention can be applied not only to an electronic filing device but also to any device that displays an image of a predetermined size. it can.

In the present embodiment, the resolution of the display 5 is described in the environment variable declaration file, but the resolution of the display 5 is not described in the environment variable declaration file, but the display 5 For example, by detecting the model number, the resolution can be determined from this model number.

Also, the reduction / enlargement ratio of the image displayed on the display 5 is not described in the environment variable declaration file, but should be recorded in the header of the index file 20 for managing the document shown in FIG. Can
As a result, the reduction / enlargement ratio can be changed for each document including the image data D1 to D5.
Further, this reduction / enlargement rate is
It is possible to set the index data P1 to P5 respectively, and thereby, it is possible to change the reduction / enlargement ratio for each image of the document.

Further, in the present embodiment, the magneto-optical disk 12 is used as the recording medium for recording the image of the document and the index file 20. However, the recording medium is not limited to the magneto-optical disk, but may be, for example, a magnetic disk or a magnetic tape. A recording medium can be used.

[0047]

According to the display control device of the first aspect, the reduction / enlargement ratio of the image is inputted and the resolution of the display means is detected. Then, the display size of the image is set corresponding to the resolution of the display means and the reduction / enlargement ratio of the image, and the image is displayed according to the display size. Therefore, an image can be displayed with an appropriate resolution and size without causing the user to feel bothersome.

According to the display control device of the second aspect,
Since the reduction / enlargement ratio of the image described in the predetermined file is referred to, the predetermined file in which the reduction / enlargement ratio of the image is described need only be created once, and it is possible to prevent the user from feeling bothersome.

According to the display control device of the third aspect,
The reduction / enlargement rate corresponding to each of the plurality of images, which is managed by the management unit together with the positions of the plurality of images recorded on the recording medium, is referred to. Therefore, each image can be displayed with a resolution and size suitable for each image.

According to the display control device of the fourth aspect,
Reference is made to a reduction / enlargement ratio corresponding to the document, which is managed by the management means together with the position recorded on the recording medium, of the document including at least one image. Therefore,
Documents can be displayed with a resolution and size suitable for the document.

[Brief description of drawings]

FIG. 1 is a block diagram showing the configuration of an embodiment of an electronic filing device to which a display control device of the present invention is applied.

FIG. 2 is a diagram showing image data recorded on a magneto-optical disk 12 of the embodiment of FIG. 1 and a data format of an index file 20 for managing the image data.

FIG. 3 is a flow chart for explaining the operation of the embodiment of FIG.

FIG. 4 is a diagram showing an image displayed on a display 5 at an enlargement / reduction rate of 100%.

FIG. 5 is a diagram showing an image displayed on a display 5 at an enlargement / reduction rate of 75%.

FIG. 6 is a diagram showing an image with a resolution of 400 DPI.

FIG. 7 is a resolution of 200DP in which the image of FIG. 6 is thinned out.
It is a figure which shows the image of I.

[Explanation of symbols]

 1 CPU 2 ROM 3 RAM 4 Display Buffer 5 Display 6 Printer Scanner Buffer 7 Printer 8 Scanner 9 Keyboard Mouse Interface 10 Keyboard 11 Mouse 12 Magneto Optical Disk 21 to 23 File Shelf Button 24 Search Button 25 Exit Button 26 Window 27 Fixed Enlargement Button 28 Optional enlargement button 29 Print button 31 Window

Claims (4)

[Claims] 1. An input unit for inputting a reduction / enlargement ratio of an image, a display unit for displaying the image, a detection unit for detecting the resolution of the display unit, and a resolution of the display unit detected by the detection unit. ,
And setting means for setting the display size of the image corresponding to the reduction / enlargement ratio input from the input means, the display means according to the display size set by the setting means. A display control device characterized by displaying an image. 2. The display control device according to claim 1, wherein the input unit refers to a reduction / enlargement ratio of the image described in a predetermined file. 3. A recording medium which records a plurality of images, and a management unit which manages a position where the plurality of images are recorded on the recording medium, wherein the management unit includes the plurality of images. The reduction / enlargement ratio corresponding to each of the plurality of images is further managed, and the input unit refers to the reduction / enlargement ratio corresponding to each of the plurality of images managed by the management unit. Display controller. 4. A recording medium which records a document composed of at least one image, and a management unit which manages a position where the document is recorded on the recording medium, wherein the management unit is the The display control device according to claim 1, wherein the reduction / enlargement ratio corresponding to the document is further managed, and the input unit refers to the reduction / enlargement ratio corresponding to the document managed by the management unit. .