JPH0573098B2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a method for storing an image output from a reading means for reading an image of a document in a storage medium by a storage means, and displaying an image read from the storage medium by the storage means. The present invention relates to an image processing device for displaying images on a means.

[Prior Art] A filing device reads an image of a document, stores it in a storage medium such as an optical disk or magneto-optical disk, searches it as necessary, reads it from the storage medium, and records it on recording paper. In terms of efficiency in reading operations and image recording operations, it is desirable to read originals of the same size in the same direction.

[Problem to be solved by the invention] However, the orientation of the image on the original is not always constant; some images are viewed with the original held vertically, while others are viewed with the original placed horizontally. ,
If a document containing a mixture of these images is read in the same direction and stored, and the retrieved image is displayed on a display, it will be displayed as shown in FIG. 1b. If the display is displayed like this, the operator should rotate the display 90 degrees or
The operator must activate the rotation function of the filing device to rotate the image 90 degrees.

Such work not only bothers the operator, but also takes a lot of time.

[Means for Solving the Problems] An object of the present invention is to provide an image processing device that can rotate an image according to the orientation of the image and display the image. In an image processing apparatus that stores an output image in a storage medium by a storage means, and displays an image read from the storage medium by the storage means on a display means, a first step of inputting data regarding the orientation of the image in association with the image. a second input means for inputting a search instruction for an image stored in the storage medium, a processing means for rotating an image, an image output from the reading means and an input from the first input means; a first control means that causes the storage medium to store the data regarding the image and the orientation of the image, respectively, by supplying data regarding the orientation of the image to the storage means, and a search instruction input from the second input means; Accordingly, the image stored in the storage medium and data regarding the orientation of the image are read by the storage means, and the read image is rotated by the processing means based on the read data regarding the orientation of the image. The above-mentioned problem is solved by providing an image processing device characterized by having a second control means for displaying an image on the display means by supplying the rotated image to the display means. It is something.

[Embodiments of the invention]

The present invention will be explained below with reference to the drawings.

FIG. 2 is an external view of an image processing system to which the present invention is applied. Reference numeral 1 denotes a control unit (hereinafter referred to as a workstation) equipped with a microcomputer for system control, internal memory composed of RAM, ROM, etc.

Reference numeral 2 denotes an input section of the digital copying machine, which is a document reader that converts document information of a document placed on a document table into an electrical signal using an image pickup device such as a CCD. Also, 3
is an output unit of a digital copying machine, which is a high-speed printer that records an image on a recording material based on information converted into an electrical signal, such as a laser beam printer. 4 has a storage medium such as an optical disk or a magneto-optical disk,
This is an image file in which a large amount of image information can be written and read. Reference numeral 5 denotes a display section that displays image information photoelectrically read by an image sensor of a digital copying machine or image information read out from an image file, and is an endless display section that is a transparent conductive strip-shaped substrate with a photoconductive layer provided on it. The photosensitive belt forms an electrostatic latent image on the photoconductive layer according to the brightness of the image light by irradiating the photoconductive layer with a laser beam tuned in accordance with the input image signal through the substrate, This is a high-resolution display device that develops the formed latent image with conductive and magnetic toner (developer) held on a toner carrier to form a display image.

Reference numeral 6 denotes a floppy disk device which stores index information for searching for images in image files.

7 is a cathode tube display device (hereinafter referred to as CRT) that displays image information photoelectrically read by the image sensor (reader) of the digital copying machine and microfilm file, image information read from the image file, or system control information. call).

Cables 11 to 15 electrically connect each input/output device. Further, 20 is a keyboard provided in the control unit 1, and this keyboard 20
By operating the , system operation commands, etc. are issued. Reference numeral 21 denotes an operation panel for issuing operation commands for the digital copying machine, and includes setting keys for the number of copies, copy magnification, etc., and a copy key 22 for instructing the start of copying.
It also has a numerical display, etc.

FIG. 3 is a block diagram showing the circuit configuration of the image processing system shown in FIG. 2. Each block corresponding to that in FIG. 2 is given the same number as in FIG.

First, each block within the control section 1 will be explained. 20
2 is a keyboard shown in the second figure, and the operator uses this keyboard 20 to input operation commands for the system. 32 is image information compression (reducing redundancy) and expansion (returning reduced redundancy)
This is a compression/expansion circuit that performs 34 is a CRT interface for exchanging information with the CRT7.

The display image of the CRT 7 is information stored in the RAM 47. 35 is an interface for exchanging information with the image file 4; 36 is an interface for exchanging information with the display device 5. Furthermore, 38 is an interface for exchanging information with the document reader 2 and printer 3 that constitute the digital copying machine 46.
39 is a central processing unit (hereinafter referred to as CPU) consisting of a microcomputer (for example, 68000 manufactured by Motorola). 40 is a ROM in which a system control program is written in advance, and the CPU
39 performs control according to the program written in this ROM 40. 41 is RAM, mainly
It is used as the working memory of the CPU 39.
Reference numerals 42 and 43 are page memories composed of 64K DRAM and the like, which store image signals (image signals read by the original reader 2 and image file 4) exchanged between each input/output section. Reference numeral 48 is a 16-bit bus through which signals are transferred between each block within the control section 1.

11 to 15 are cables that electrically connect each input/output device as described above, and control signals and image signals are transmitted. Note that the arrows on the cables indicate the flow of images. Also, the flow of control signals is bidirectional in the cable.

Furthermore, since the image signals of the document reader 2, printer 3, and display device 5 are serial signals, the input/output interface 38 includes a serial to parallel (16 bit) conversion register for capturing image signals, and a parallel register for outputting image signals. (16bit) → A serial conversion register is provided. The display device interface 36 is provided with a parallel (16 bit) to serial conversion register.

The compression/expansion circuit 32 is configured as shown in FIG. 4, for example. In other words, during compression, as shown in FIG. An EOL generator 63 generates a cyclic redundancy check code (hereinafter simply referred to as CRC) for each scan line of image information, a CRC generator 64 generates a cyclic redundancy check code (hereinafter simply referred to as CRC) for each scan line of converted image information With the above EOL at the end
It consists of an EOL that adds CRC and a CRC addition circuit 65.

During decompression, as shown in FIG. 4b, the line buffer 61, decompression (MH inverse conversion) circuit 66, and EOL detection circuit 6 for detecting the EOL added to the converted image are used.
7. A counter 68 that counts the detection results of the EOL detection circuit 67, and a determination that determines whether the number of lines of the converted image is suitable for a predetermined number of lines (for example, 16×297 lines) based on the count of this counter 68. Circuit 69, added to the converted image
a CRC check circuit 70 that performs a cyclic redundancy check using the CRC and inversely converted image information of one scanning line;
It consists of a counter 71 that counts errors caused by the check of this CRC check circuit 70, and a determination circuit 72 that determines whether the number of error lines is less than a predetermined number of lines (for example, 64 lines) based on the count of this counter 71. .

Figure 5 shows an example of the structure of index information, which is composed of a search code section that indicates search information and an address code section that indicates the address recorded in file 4. The paper size (for example, A4) and the character direction in which the document is written (for example, vertical in the case of Figure 1a, horizontal direction in the case of Figure 1c) are input.
In addition, the address code section above contains the first track address and sector address S to the image file 4.
ADR, final track sector address E・ADR
It's getting more familiar.

Next, in such a configuration, memory (registration)
The method will be explained with reference to FIG. The registration (memory) mode is selected using the keyboard 20 (step 1). Image information search code (date,
Enter the title, paper size, font direction, etc.).
As a result, the CPU 39 checks the validity of the input data according to the predefined search code format, and checks whether there is any double registration (step 2). If the search code is correct as a result of the check, then the document reader 2 is operated to photoelectrically convert the image information of the set document, etc., and it is stored in the page memory 42 via the input/output interface 38 (step 3). Next, in the CPU, the image information signal stored in the page memory 42 is compressed by the compression/expansion circuit 32 and stored in the page memory 43 (step 4). Next, the CPU starts image file 4 on the optical disk,
The compressed image information signal stored in the page memory 43 is stored in the image file 4 (step 5). Next, the CPU stores the index information consisting of the search code and address code in the floppy disk, and the registration operation is completed (step 6).

Next, a search method for outputting the image information stored in the image file 4 to the display device 5 will be explained with reference to FIG.

First, a search mode is set using the keyboard 20 (step 1). Next, use the same keyboard 20 to insert the search code, date, and title (step 7). The CPU 39 sequentially compares and collates the search code with the search codes stored on the floppy disk 6, and sequentially checks whether the search code matches the search code written. (Step 8). If the search code matches, the corresponding address information (first track/sector information, last track/sector information) is used to store the image information signal from the image file 4 in the page memory 43 via the interface 35. (Step 9). Next, the CPU 39 is the compression/expansion circuit 32
The decompression unit is operated (step 10), and the original uncompressed image information signal is stored in the page memory 42.
Next, the CPU 39 determines the character direction code in the search code (step 11), and if it is vertical as shown in FIG. It is sent to the display device 6. In the case of FIG. 1b, the contents of the page memory 42 are rotated by 90 degrees and the result is stored in the page memory 43. Thereafter, the display device 5 is activated and an image signal is sent out via the interface 36, and an image is displayed on the display device 5 as shown in FIG. 1c.

Next, an example of a method for rotating an image by 90 degrees will be shown using FIG.

The CPU 39 is 0 in the x direction of the page memory 42, and 0 in the y direction.
16 bits 0 to 15 in direction 0 are read out and each bit is stored in page memory 43, 1 bit for x direction 0-0 and y direction (0 to 15). Next, page memory 42
The 16 bits of 1 in the x direction and 0 in the y direction, 16 to 31, are read out and each bit is stored in the page memory 43 one bit at a time in the x direction 0-0y direction (16 to 31). When one scan is completed by continuing this in sequence, 16 bits 0 to 15 in the x direction 0 and y direction 1 of the page memory 42 are read out and each bit is transferred to the page memory 43 in the x direction 0 -
1. Store 1 bit at a time in the y direction (0 to 15). Thereafter, by performing this operation for the entire area of the page memory 42, the image signal rotated by 90 degrees is stored in the page memory 43.

FIG. 7 shows details of the display device 5.
1 is a vertical external device; 102 is a display image peep hole formed in a large opening on the front panel surface of the external device; 10
Reference numeral 3 indicates an operation panel disposed on the upper surface of the lower part of the front panel that projects forward; 104 indicates a display window glass placed in the window hole 102; 105, 106, 107, and 108;
Four endless belt-shaped photoreceptor suspension support rollers are disposed in the upper and lower parts of the exterior casing 101, two each with their axes extending in the left and right directions of the exterior casing, parallel to each other, and individually rotatably supported by bearings. , 109 is an endless belt-shaped photoreceptor which is suspended and supported by the four rollers 105 to 108. Note that the photoreceptor does not have to be endless.

The endless belt-shaped photoreceptor 109 (hereinafter simply referred to as a belt) has a base layer made of a transparent sheet such as a polyester sheet, and a very thin layer of metal is deposited on the outer surface of the sheet to substantially maintain transparency. Provide conductivity while leaving the metal evaporated on the metal-deposited surface.
It is entirely flexible and is formed with a photosensitive material layer (photoconductive layer) such as CdS, and is suspended and supported by the above-mentioned four rollers with the photosensitive material layer on the outside.

Roller 10 among the four rollers 105 to 108
5 as a driving roller, motor M (not shown)
The roller 105 is rotationally driven. At least one of the other three rollers 106 to 108, for example roller 106, acts as a belt tension roller and applies tension to the suspended belt 109. Therefore, when the drive roller 105 is rotated counterclockwise in FIG. 7 by the motor M, the suspension belt 109 rotates counterclockwise without waving, sagging, or slipping. Along with this rotation, belt 109 moves between rollers 105 and 108.
The outer surface of the tension side moves through the display screen viewing hole 102 from the bottom to the top.

Reference numeral 110 denotes a laser beam scanning image exposure device fixedly disposed in the inner space of the hanging belt 109, which includes a semiconductor laser oscillator 111, a polygon mirror scanner 112, and an fθ lens (imaging lens) 11.
3. It has a reflecting mirror 114 and a transparent plate 115. The transparent plate 115 is a horizontally long transparent flat plate made of glass or plastic, which is placed in pressure contact with the inner surface of the tensioned belt portion between the above-mentioned belt suspension support rollers 107 and 108 with an appropriate force.

In this image exposure device 110, the page memory 4
An intermittent laser beam L corresponding to the electric pixel signals supplied from 2 and 43 is oscillated from a semiconductor laser oscillator 111 at the front of the drawing toward a rotating polygon mirror scanner 112 at the back of the drawing. The laser beam L incident on the scanner 112 is swung in the belt width direction, enters the inside of the belt 109 between the rollers 107 and 108 via the path of the fθ lens 113, the reflector 114, and the transparent plate 115, and is converted into a laser beam in the belt width direction. scanned. As a result, an image is exposed by a laser beam from inside the belt, with this laser beam scanning as a main scanning and the rotational movement of the belt 109 as a sub-scanning.

A toner developing device 116 is disposed on the outer surface of the belt between rollers 107 and 108, and has a developing width that is equal to or slightly wider than the belt width. Note that the transparent plate 115 is connected to the rollers 107 and 1.
08 with its lower surface slightly protruding downward from the common tangent line on the lower side of the belt 109, and is brought into pressure contact with the inside of the belt 109. The developing device 116 is provided with a sleeve 135 having a magnet 134 therein, and the magnet 134 is rotationally driven in the direction of the arrow by a developing motor (not shown). A DC developing bias voltage is applied between the sleeve 135 and the conductive layer of the belt 109.

Here, image formation, display, and image erasing operations of the display device will be explained.

First, the motor M is driven by a key input on the keyboard 20, and the belt 109, which is a photoreceptor, rotates in the direction of the arrow at a predetermined speed. Next, the laser beam scanning exposure of the specified image information is performed on the rollers 107 and 1.
Starting from the inner side of the belt 109 between 08 and 08, exposure scanning for two images is performed. At the same time as this exposure, the toner in the developing device 116 acts on the outer surface of the belt, so that toner images corresponding to the exposed images are sequentially formed on the outer surface of the belt 109. When the toner image formed on the outer surface of the belt rotates from bottom to top from the bottom to the top of the display image viewing window 102 as the belt rotates, and moves to the designated window range position, the belt 109 is rotated. will be stopped. As a result, window hole 1
An image is displayed on the 02 section, and the display window glass 10
The image is visible through 4. Next, when the motor M is driven by the belt re-rotation operation command, the belt 109 moves again in the direction of the arrow, the next display image moves to the window hole range position, and the next screen is displayed. After the image is displayed, the toner image on the outer surface of the belt reaches the toner developing device 116 as the belt rotates, where it is cleaned and removed by a developing brush, and immediately after this cleaning, it is newly subjected to simultaneous exposure and development. This results in the formation of a new toner image. As mentioned above, the developing device also serves as a cleaning means. In this way, the image information is reproduced and displayed as a toner image, and the image is exposed using a very narrow laser hole L, so it is possible to display fine characters and other images clearly and with high resolution. In addition to being able to display images of statues,
Since it uses a simultaneous exposure toner application method, it has an extremely simple configuration that does not require corona charging means or special cleaning means, and can be manufactured at a relatively low cost even with large screens, and is reliable with less failure and photoreceptor deterioration. It is possible to construct a high-performance display device.

As mentioned above, the direction of the characters, vertical,
By inputting information such as the horizontal direction, a high-resolution image display device can be operated efficiently.

[Effects of the Invention] As explained above, according to the present invention, the data regarding the orientation of the image output from the reading means and the data regarding the orientation of the image input from the input means are stored in the storage medium, respectively. the image stored in the storage medium and the data regarding the orientation of the image in response to the search instruction, and the read image is rotated and displayed based on the data regarding the orientation of the read image. , it is possible to display an image in an orientation that is easy for the operator to view without bothering the operator and without wasting time.

[Brief explanation of the drawing]

Figure 1 is a diagram showing the image direction, Figure 2 is a connection diagram of the image reproduction system, Figure 3 is an image reproduction block diagram, Figure 4 is a companding circuit diagram, Figure 5 is a code memory diagram, and Figure 6. is a memory up diagram, FIG. 7 is a perspective view of the display, and FIG. 8 is a flowchart diagram.
3 is a printer, 4 is an image file, and 5 is a display device.

Claims (1)

[Scope of Claims] 1. An image processing device that causes a storage device to store an image output from a reading device for reading an image of a document in a storage medium, and displays an image read from the storage medium by the storage device on a display device. , a first input means for inputting data regarding the orientation of the image in association with the image; a second input means for inputting a search instruction for the image stored in the storage medium; a processing means for rotating the image; The image output from the reading means and the first
a first control means for storing data on the image and the orientation of the image in the storage medium by respectively supplying the data on the orientation of the image input from the input means to the storage means; The storage means reads the image and the data regarding the orientation of the image stored in the storage medium in response to the search instruction, and the read image is subjected to the processing based on the read data regarding the orientation of the image. An image processing apparatus comprising: second control means for displaying the image on the display means by causing the image to be rotated by the display means and supplying the rotated image to the display means.