JPH02260028A - Picture processor - Google Patents

Abstract

PURPOSE:To ensure the display of an entire picture on a display means regardless of a vertically or horizontally long size of the picture and even with rotation of the picture by providing a magnification/reduction circuit serving as a control means, a vertical/horizontal converter, a display means, etc. CONSTITUTION:The picture stored in an optical disk 20 is retrieved or an original is read by a scanner device 18 and the picture is displayed on a CRT 24 after converting it into an approximately regular square. Under such conditions, the retrieving information is inputted in response to the display instruction and the picture to be retrieved. Then a vertically or horizontally long picture is converted into an approximately regular square picture with the lengthwise direction of the picture reduced by a magnification/reduction circuit 46. Then this square picture is displayed. When the rotation of the picture is instructed, the picture is turned as it is by a vertical/horizontal converter 48 with no change of the reduced scale. Then the rotated picture is displayed in an approximately square area on the CRT 24 having a vertically or horizontally long area. Thus it is possible to display an entire picture on the CRT 24 regardless of a vertically or horizontally long size of the picture and even with rotation of the picture.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to an image processing device such as an image filing device that performs image registration, search, editing, etc., for example.

(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 in a form that can be viewed by 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. 5, a vertically long surface water 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. 4. 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 of a document or drawing, regardless of whether it is vertical or horizontal, even if the document or drawing is rotated.

(Problems 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 vertically or horizontally oriented, even if the document or drawing is rotated. To provide an image processing device that can display the entire image on a CRT display device, regardless of whether the image to be displayed is vertically long or horizontally long, even if the image is rotated. With the goal.

[Structure of the Invention] (Means for Solving the Problems) An image processing apparatus of the present invention includes a supply means for supplying a vertically long or horizontally long image, and a supply means for supplying the vertically long or horizontally long image supplied by the supply means. a display means having a display surface to display; an instruction means for instructing conversion of the vertically long or horizontally long image supplied by the supply means to be displayed on the display means; The present invention is characterized by comprising a control means for reducing the lengthwise direction of the supplied vertically long or horizontally long image into a substantially square image and displaying the image in a substantially square area on the display surface of the display means.

(Function) This invention converts a vertically long image or a horizontally long image into a substantially square image, and when rotation is necessary, rotates it as it is without changing the scale, and displays the vertically long or horizontally long display area. The information is displayed in a substantially square area of the display means having the following characteristics. As a result, even if the image is rotated, no protruding portions will occur.

(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 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 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 display device 24, that is, the image in the page memory 40. The image that was created is what is stored. The display control unit 44
Control of the display processing of the T display device 24, and copying and swapping processing (Me
(using the mory to MeIIory function), etc.

In the display memory 42, for example, when a vertically long original processed image to be described later is stored, the image is stored in a storage area 42a, as shown in FIG. When a horizontally long original processed image is stored, the storage area 42a is stored with the storage area 42a rotated by 90 degrees (not shown).

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 (CODE) performs encoding processing to restore the reduced redundancy.
C) 50, a scanner interface 52 for the scanner device 18, a printer interface 54 for the printer device 25, an enlargement/reduction circuit 46, and an aspect conversion circuit 4.
8, compression/expansion circuit 50, and scanner interface 52
, and a printer interface 54.

The compression/expansion circuit 50 is a MH (Modified 1l
ufl'man) method, or MR (Modify) method.
This method performs band compression or band expansion using a method such as ed Read).

The communication control module 16 is connected to a LAN, for example.
The communication interface 58 is configured by a communication interface 58 such as a Further, the communication control module 16 is connected to an external device such as an FCP (Facsimile Connection Mechanism) or a personal computer via a U CP (Universal CoI!) interface.
munlcat1onProcessor). This communication control module 16
supplies the search information transmitted via the 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 contents (various (operation mode, area designation for edited images, icons, etc.).

The CRT display device (cathode ray tube display device) 24 is
Images read by the scanner device 18 and images retrieved from the optical disc 20 are displayed. The image display window 24a formed on the display surface of the CRT display device 24 can be made into a vertically long image display window or a substantially square image display window according to the operator's selection. There is. If a substantially square image display window is selected, if the original processed image is a vertically long image, it will be reduced in the vertical direction, 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 stores various control programs on a magnetic disk 26 attached to the magnetic disk device 27, and also has an optical disk 20 that stores search information input from the keyboard 23 and images corresponding to this search information. It stores search data consisting of the above storage address, image size, etc.

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 if an image is to be converted into a substantially square image for display on the CRT display device 24, an instruction to that effect and search information corresponding to the image desired to be searched are input. Thereby, the CPU 34 sequentially compares and collates the input search information with the search information stored on the magnetic disk 26, and sequentially checks whether or not search information that matches the input search information is stored.

Then, the CPU 34 reads the logical address corresponding to the search information that matches the input search information, calculates the physical track address and physical sector address corresponding to this logical address, and uses these addresses to read the image from the optical disk 20. The optical disc device 22 reproduces the data. The image signal reproduced by this optical disk device 22 is compressed and encoded, and is reproduced every scanning line. The reproduced image for each scanning line is stored in the buffer memory 4 of the page memory 40.
0a (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, it is checked whether it is specified that the shape of the image display window 24a should be square (step S3).
. If it is determined that the image should be made into a square, the image information stored in the page memory 40 is supplied to the enlargement/reduction circuit 46, and the image information is reduced in the vertical direction to create an image with equal length and width. It is converted into information and supplied to the display memory 42 (step S4). At this time, the CPU 34 uses the address control circuit 44a of the display control unit 44 to specify the write address, so that the display memory 42 has the following information as shown in the storage area 42b (the area indicated by the dashed line) in FIG. , image information is stored in a substantially square area with equal length and width.

On the other hand, if it is determined in step S3 that the square shape is not specified, the contents of the page memory 40 are transferred as they are to the display memory 42 (step S9).
. At this time, the CPU 34 specifies the write address using the address control circuit 44a of the display control unit 44, so that the CPU 34 specifies the write address using the address control circuit 44a of the display control unit 44.
As shown in a, image information is stored in a vertically long rectangular area.

Next, it is checked whether there is a designation to rotate the image (step S5). If it is determined here that rotation is specified, rotation processing is performed (step S6).
.

That is, by specifying a read address from the CPU 34 to the display control section 44, the memory area 42a or 42b can be read out.
The image information stored in is output to the aspect 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
By specifying a write address using the address control circuit 44a of the display control unit 44, the image information supplied from the aspect conversion circuit 48 is stored in the storage area 42a or 42b corresponding to the display area of the display memory 42. Ru. At this time, if the image before the aspect conversion process is square,
The image after the vertical/horizontal conversion is also square, and the entire image can be displayed on the CRT display device 24. On the other hand, if the image before the vertical/horizontal conversion process is a vertically long rectangle, as explained in the conventional example, the image after the vertical/horizontal conversion becomes a horizontally long rectangle, and the top and bottom (left and right after rotation) of the original image are deleted. will be displayed on the CRT display device 24.

In addition, when rotating the above-mentioned vertically long image, it may be configured to reduce the image at a predetermined reduction ratio and display it.

On the other hand, if it is determined in step S5 that there is no rotation instruction, the rotation process (step S6) is skipped.

Next, image display is performed (step S7). This image display is performed by sending the image information generated in the storage area 42a or 42b of the display memory 42 to the CRT display device 24 under the control of the display control section 44.

Therefore, when the display control unit 44 displays the storage contents of the storage area 42a of the display memory 42 on the CRT display device 24, a vertically long image is displayed, and the storage area 4
When the stored contents of 2b are displayed on the CRT display device 24, 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 S8). 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.

As described above, a vertically long image or a horizontally long image is reduced in the longitudinal direction by the scaling circuit 46, converted into a substantially square image, and displayed, and when rotation is instructed, the scale is changed. A CRT that is rotated as it is by the vertical/horizontal conversion circuit 48 and has a vertically long or horizontally long display area.
Since the image is displayed in a substantially square area of the display device 24, regardless of whether the original image to be displayed is vertically long or horizontally long, it is possible to prevent a portion from being not displayed even if the original image is rotated.

In the above embodiment, the case where a vertical CRT display device is used has been described, but the present invention can be similarly applied to a horizontal CRT display device, and the same effects can be obtained.

[Effects of the Invention] As detailed above, according to the present invention, image processing allows the entire image to be displayed on a CRT display device, regardless of whether the image to be displayed is vertical or horizontal, even if the image is rotated. equipment 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 rotation operation, FIG. 4 is a flowchart for explaining the operation, and FIG. 5 is a diagram for explaining the conventional rotation 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 (control means) 38 ... Main memory, 40 ... Page memory, 42 ... Display memory, 42a . 42b...Storage area, 34...Display control unit (control means) 46...Enlargement/reduction circuit (control means) 48...
- Vertical/horizontal conversion circuit (control means) 50... Compression/expansion circuit. Figure Figure Figure

Claims (1)

[Scope of Claims] Supply means for supplying a vertically long or horizontally long image; Display means having a display surface for displaying the vertically long or horizontally long image supplied by the supply means; Display on the display means an instruction means for instructing conversion of the vertically long or horizontally long image supplied by the supplying means; An image processing apparatus comprising: a control means for forming a substantially square image and displaying the image on a substantially square area on a display surface of the display means.