JPH02260030A - Picture processor - Google Patents

Abstract

PURPOSE:To display all pictures on a display screen of a display device regardless of the vertically or horizontally long size of a picture to be displayed or the rotation of the picture and to ensure the effective use of an entire display screen by providing a magnification/reduction circuit, a vertical/horizontal converter, etc. CONSTITUTION:The picture stored in an optical disk 20 is retrieved or an original is read by a scanner device 18 and displayed on a CRT 24. Under such conditions, a retrieving mode is set and at the same time the necessary retrieving information is inputted together with an instruction to display the picture after converting it into an approximately regular square. Thus a reproduced picture is supplied to a magnification/reduction circuit 46 via a page memory 40 under the control of a CPU 34. The circuit 46 reduces a vertically or horizontally long picture into an approximately square picture with reduction of the picture in its lengthwise direction. This converted picture is displayed on an approximately square area of a CRT 24. When the rotation of the picture is instructed, the displayed picture is turned as it is by a vertical/horizontal converter 48 with no change of the reduced scale. Thus it is possible to display all pictures on the CRT 24 regardless of the vertically or horizontally long sizes or the rotation of these pictures. As a result, an entire display screen is effectively used.

Description

DETAILED DESCRIPTION OF THE INVENTION [Purpose of the Invention (Industrial Application Field) The present invention relates to an image processing device such as an image filing device for registering, searching, editing, etc., images.

(Prior Art) Recently, images such as documents, which are generated in large quantities, are read by optical two-dimensional scanning using a two-dimensional scanning device (scanner).
Image filing devices have been put into practical use that store the read images on an optical disk, search for and read out any stored image, and output it to a state where it can be viewed with an output device, such as a CRT display device or a printer.

Such an image filing device uses the read image to edit a target document by rotating, enlarging, reducing, or compositing with another document.

Among such devices, there are two types of CRT display devices for displaying documents, drawings, etc.: vertical type (vertically long display area) and horizontal type (horizontally long display area). For example, in a vertical CRT display device 24 as shown in FIG. 6, a vertically long display window area 24a is provided.

Therefore, there is no problem when displaying a vertically long document or drawing as it is, but if you try to display it by rotating it by 90 degrees, for example, the top and bottom of the document or drawing will protrude from the display window area 24a, and the image area (
There was a problem in that the shaded area in the figure) occurred. The situation is exactly the same when a horizontal CRT display device length is used. Therefore, there has been a need for a CRT display device that can display the entire image on a CRT display device, regardless of whether the document, drawing, etc. to be displayed is vertically long or horizontally long, even if the document or drawing is rotated. On the other hand, there is also a desire to remove areas that are not used for display from the display screen of a CRT display device to effectively use the entire screen.

(Problem to be Solved by the Invention) As described above, the present invention is capable of displaying the entire image on a CRT display device, regardless of whether the document or drawing to be displayed is vertical or horizontal, even if the document or drawing is rotated. This is in response to the desire to effectively use the entire display surface by removing areas that are not used for display from the display surface of a CRT display device, and to determine whether the image to be displayed is vertical or horizontal. It is an object of the present invention to provide an image processing device that can display all images on a CRT display device even if they are rotated, and can effectively use the entire display surface.

[Structure of the Invention] (Means for Solving the Problems) The image processing device of the present invention includes: supply means for supplying a vertically long or horizontally long image; a display means having a substantially square display surface for displaying the image; An instruction means for instructing conversion of a vertically long or horizontally long image supplied from the supply means to be displayed on the display means; a first control means for obtaining a substantially square first image by reducing the direction; and a first control means for displaying the first image obtained by the first control means on a substantially square display surface of the display means. and a third control means for rotating the second image displayed on the substantially square display surface of the display means by the second control means and displaying the second image on the substantially square display surface of the display means. It is characterized by comprising a control means.

(Operation) The present invention converts a vertically long image or a horizontally long image into a substantially square first image according to an instruction from an instruction means,
This converted first image is displayed in a substantially square area of a display means configured to have a substantially square display area, and when further rotation is required, the above-mentioned image is displayed without changing the scale. The image displayed on the display means is rotated as it is and displayed again in a substantially square area of the display means. As a result, even if the image is rotated, no protruding portion is generated, and the entire display area of the display means can be used effectively.

(Example) Hereinafter, an example of the present invention will be described with reference to the drawings.

FIG. 2 shows an image filing device as an image processing device of the present invention. That is, the image filing device includes a control module 10, a memory module 12, an image processing module 14, and a communication control module 1.
6, scanner device 18, optical disk 20 and optical disk device 22, keyboard 23, CRT display device 2
4, a printer device 25, a magnetic disk 26 and a magnetic disk device 27, a light rail 28, a mouse 29, a system bus 30, and an image bus 32.

The control module 10 includes a CPU 34 that performs various controls such as image storage, search, and editing processing, and an optical disk device 2.
2. It is composed of an interface circuit 36 that connects the magnetic disk device 27 and the CPU 34. Also, C
A keyboard 23, a light pad 28, and a mouse 29 are connected to the PU 34.

The memory module 12 includes a main memory 38 for storing various control programs such as image storage, search, and editing, management information, etc., and a page memory as an image memory having a storage capacity corresponding to images of several pages of an A4-sized document. 40,
It also includes a display memory 42 as a display interface, a display control section 44, and the like. A buffer memory area 40a is provided in a part of the page memory 40. Writing and reading in this buffer memory area 40a are controlled by a counter (not shown). The page memory 40 is a memory that temporarily stores images stored on the optical disc 20 and images read from the optical disc 20, for example.

The display memory 42 enlarges, reduces, rotates, inserts, or inverts the image actually displayed in the display area of the image display window 24a of the CRT Day 3 playback device 24, that is, the image in the page memory 40. The image that has been subjected to this process is stored. The display control unit 44
Control of the display processing of the T display device 24, copy swapping processing of image data in the display memory 42 in free running mode using the address control circuit 44a (see FIG. 1) (using the Memory to Memory function), etc. This is what we do.

As shown in FIG. 1, the display memory 42 stores, for example, a vertically long original processed image in the storage area 42a, and a horizontally long original processed image in the storage area 42a. Although it is stored in a state rotated by 90 degrees (not shown), when a substantially square image according to the present invention is stored, it is stored in the storage area 42b.

The image processing module 14 includes a scaling circuit 46 that scales up and down the image, a vertical/horizontal conversion circuit 48 that rotates the image by vertically and horizontally converting the image, and image compression (reducing redundancy) and expansion ( a compression/expansion circuit (CODEC) 50 that performs encoding and decoding processing (restoring reduced redundancy), a scanner interface 52 for the scanner device 18, a printer interface 54 for the printer device 25, and a scaling circuit. 46 and an internal bus 56 that connects the vertical/horizontal conversion circuit 48, the compression/expansion circuit 50, the scanner interface 52, and the printer interface 54.

The compression/expansion circuit 50 is a MH (Modeled llu
rrman) method or MR (Modlried) method.
This method performs band compression or band expansion using a method such as Read).

The communication control module 16 is, for example, a BCP (Bus Coavuniatelon P) connected to a LAN.
The communication interface 58 is configured by a communication interface 58 such as a The communication control module 16 also includes a UCP (tJniversalCom) connected to external devices such as an FCP (Facsimile Connection) and a personal computer via an interface.
IIunication Processor) may also be provided. This communication control module 1
6 supplies search information transmitted via a communication line to the main memory 38, and transmits an image corresponding to the transmitted search information. Further, it supplies images stored on the optical disc 20 to the page memory 40, and also supplies search information corresponding to the images to the main memory 38.

The system bus 30 is a bus for control signals of various devices, and connects the control module 10, the memory module 12, the image processing module 14, and the communication control module 16. Further, the image bus 32 is a bus for images, and includes the memory module 12 and the image processing module 14.
, and the communication control module 16.

The scanner device 18 is, for example, a two-dimensional scanning device, and is a document (
By scanning the document (document) two-dimensionally with a laser beam, an electrical signal corresponding to the image on the document is obtained.

The optical disk device 22 sequentially stores images read by the scanner device 18 on the optical disk 20 .

It also searches the optical disc 20 for an image corresponding to search information specified using the keyboard 23 or the like.

The keyboard 23 is used to input unique search information corresponding to the image to be stored on the optical disc 20 and various operation commands such as storage, search, and editing processing.

Further, the mouse 29 can be used, for example, as a CRT display device 2.
By arbitrarily moving a cursor (not shown) displayed on the image display window 24a on the image display window 24a in the vertical and horizontal directions and giving an instruction at a desired position, the display content (tTi etc.) at which the cursor is located can be changed. (operation mode, area designation for edited images, icons, etc.). At the same time, the light pen 28 can control various operation modes, area designations for editing images, icons, etc. displayed on the image display window 24a on the CRT display device 24, depending on the displayed content, for example. It is used to select or give instructions for a given action.

The CRT display device (cathode ray tube display device) 24 is
It displays images read by the scanner device 18 and images retrieved from the optical disc 20, as shown in FIG.
It is configured to have a substantially square display surface. This C
As shown in FIG. 3, the image display window 24a formed on the display surface of the RT display device 24 is formed into a substantially square shape along the outer frame of the display surface.

If the original processed image is a vertically long image, it is reduced in the vertical direction so as to match the shape of the image display window 24a, and is converted into a substantially square image and displayed.

Further, the display window 24a of the CRT display device 24 is a multi-window type display device that can display four images simultaneously using a maximum of four windows (not shown).

Editing processes such as enlarging, reducing, rotating, scrolling, etc. are performed on the images displayed in each display window independently.

The printer device 25 prints out (hard copies) images read by the scanner device 18, images retrieved from the optical disk 20, or images displayed on the CRT display device 24.

The magnetic disk device 27 is an optical disk that stores various control programs on a magnetic disk 26 installed in the magnetic disk device 27, and stores search information input from the keyboard 23 and images corresponding to this search information. It stores search data consisting of storage addresses, image sizes, etc. on 20.

Next, the operation of searching for an image stored on the optical disk 20 or reading a document using the scanner device 18 and displaying it on the CRT display device 24 will be described with reference to the flowchart shown in FIG.

First, the operation of reading and displaying image information from the optical disc 20 will be explained. First, a search mode is set using the keyboard 23, and an instruction is given to the CRT display device 24 to convert the image into a substantially square image and display it.
and enter search information corresponding to the image you want to search. Thereby, the CPU 34 sequentially compares and collates the input search information with the search information stored on the magnetic disk 26,
It is sequentially checked whether search information matching the input search information is stored. Then, the CPU 34
The logical address corresponding to the search information that matches the input search information is read out, the physical track address and physical sector address corresponding to this logical address are calculated, and the playback of images from the optical disc 20 is performed using these addresses. This is done by the device 22. The image signal reproduced by this optical disk device 22 is compressed and encoded, and is reproduced every scanning line. Then, the reproduced image for each scanning line is sequentially stored in the buffer memory 40a of the page memory 40 (
Step Sl). Next, the CPU 34 supplies the image (compressed information) for each scanning line stored in the buffer memory 40a to the compression/expansion circuit 50, performs band expansion processing, that is, decoding, and sequentially stores it in the page memory 40 (step S2).

Next, the image information obtained in the page memory 40 is reduced to a substantially square image (step S3).

Generally, documents, drawings, etc. are created on standardized vertically or horizontally long sheets of paper, and the images obtained by reading them with the scanner device 18 are also vertically or horizontally long images. These images are then stored as they are on the optical disc 20. Therefore, when displaying an image on the CRT display device 24 having a substantially square display area, it is necessary to reduce the image stored on the optical disk 20 in either the vertical or horizontal direction. That is, in the case of a vertically long image, the image information stored in the page memory 40 is transferred to the enlargement/reduction circuit 46.
The image data is supplied to the display memory 42, subjected to vertical reduction and converted into image information having equal length and width. At this time, the CPU 34 specifies the write address using the address control circuit 44a of the display control section 44, thereby
On the display memory 42, the storage area 42b (-
Image information is stored in a substantially square area with equal vertical and horizontal lengths (area indicated by a dotted chain line).

Next, it is checked whether there is a designation to rotate the image (step S4). If it is determined that rotation is specified here, rotation processing is performed (step S5).
.

That is, by specifying a read address from the CPU 34 to the display control unit 44, the image information stored in the storage area 42b is converted into the vertical/horizontal conversion circuit.

48. As shown in FIG. 3, this outputted image information is subjected to an aspect conversion process in an aspect conversion circuit 48 and then outputted to the display memory 42 again. At this time, the CPU 34 controls the address control circuit 44 of the display control section 44.
By specifying a write address using a, the image information supplied from the vertical/horizontal conversion circuit 48 is stored in the storage area 42b corresponding to the display area of the display memory 42. At this time, since the image after the vertical and horizontal conversion also becomes approximately square, the entire image can be displayed on the CRT display device 24.

On the other hand, if it is determined in step S5 that there is no rotation instruction, the rotation process (step S5) is skipped.

Next, image display is performed (step S6). This image display is performed by CR processing the image information generated in the storage area 42b of the display memory 42 under the control of the display control unit 44.
This is done by sending the data to the T display device 24. In other words, since the display control section 44 sends the stored contents of the storage area 42b of the display memory 42 to the CRT display device 24 for display, a substantially square image is displayed.

On the other hand, when displaying an image read by the scanner device 18, the operation is as follows. That is, the scanner device 18
By setting the original, the image of the original is photoelectrically converted and sequentially stored in the page memory 40 one scanning line at a time via the scanner interface 52 (step S7). Next, the process branches to step S3, and the image is displayed on the CRT display device 2 in the same manner as described above.
4 will be displayed.

The display surface of the display device 24 can also be configured as follows. Generally, when an operator operates an image filing device, it is necessary to input various control information from the keyboard 23. However, inputting control information by typing on the keyboard 23 is troublesome and has poor operability, and there are cases where the user forgets the control information to be input and becomes unable to perform the operation. In order to eliminate such drawbacks, the display screen of the CRT display device 24 has the following features:
In addition to image information to be searched, various control information is displayed, and the operator can give instructions necessary for operation by pointing at these using a pointing device such as a mouse 29 or a light pen 28. It can also be configured. For example, as shown in FIG. 5, a display area for a menu bar 24c for a pull-down menu is provided at the top of the screen, and function keys (rFIJ to rF6
J) A configuration in which a display area of 24d is arranged. Then, use the mouse 29 or light ben 28 to open the menu bar 24.
By picking c, a menu screen is displayed, and by picking function key 24d, the corresponding operation is started. This allows operation to be performed in the same way as when control information is input from the keyboard 23. In this case, the image display area 24a is formed into a substantially square shape as in the above embodiment, and the image display processing and rotation processing are performed in the same manner.

In the case of the above configuration, the display surface of the CRT display device 24 includes the menu bar 24c and the function keys 24.
The structure is made longer in the vertical direction by the length of d displayed.

With such a configuration, the display surface of the CRT display device 24 can be fully used for display, making effective use of the display surface, and also making it easy to perform rotation processing. In addition, display areas for the menu bar 24c and function keys 24d are provided at the top and bottom of the display screen, and the image filing device can be operated by pointing with the Bointinge device, so there is less control information to be input using the keyboard 23. It has excellent operability.

As described above, a CRT display device configured to reduce a vertically long image or a horizontally long image in the longitudinal direction of the image by the scaling circuit 46 to convert it into a substantially square image, and to have a substantially square display area. 24, and when rotation is instructed, the displayed image is rotated as it is by the vertical/horizontal conversion circuit 48 without changing the scale. Regardless of whether the original image to be displayed is vertical or horizontal, it is possible to prevent portions from being displayed even if the image is rotated. Furthermore, since the display screen of the CRT display device 24 is configured to be approximately square, the entire display surface can be used effectively.

[Effects of the Invention] As detailed above, according to the present invention, regardless of whether the image to be displayed is vertical or horizontal, the entire image can be displayed on a CRT display device even if the image is rotated, and An image processing device that can effectively use the entire display surface can be provided.

[Brief explanation of drawings]

Figures 1 to 4 show an embodiment of the present invention, with Figure 1 showing the configuration of the main parts of the memory module and image processing module, and Figure 2 schematically showing the configuration of the image filing device. 3 is a diagram for explaining the structure of the display surface and rotational operation, FIG. 4 is a flowchart for explaining the operation, and FIG. 5 is a display of another embodiment of the present invention. FIG. 6 is a diagram for explaining the configuration of a surface and a rotational operation, and FIG. 6 is a diagram for explaining a conventional rotational operation. 18... Scanner device (supply means) 20... Optical disk, 22... Optical disk device (supply means), 23
. . . Keyboard (instruction means), 24 . . CRT display device (display means) 34 . . CPU (first,
second and third control means), 38...main memory, 4
0...Page memory, 42...Display memory (display means) 42a, 42b...Storage area, 34...
Display control section (second control means), 46... Enlargement/reduction circuit (first control means), 48... Aspect/horizontal conversion circuit (third
control means) 50... Compression/expansion circuit. Applicant's Representative Patent Attorney Takehiko Suzue

Claims (1)

[Scope of Claims] Supply means for supplying a vertically or horizontally long image; a display means having a substantially square display surface for displaying an image; and a vertically long image supplied from the supply means to be displayed on the display means; or an instruction means for instructing the conversion of a horizontally long image; a second control means for displaying the first image obtained by the first control means on a substantially square display surface of the display means; a control means for controlling the display means by the second control means; an image processing device comprising: third control means for rotating the second image displayed on the substantially square display surface of the display means and displaying the second image on the substantially square display surface of the display means;