JPH06233187A - Image processor/recorder - Google Patents

Abstract

PURPOSE:To automatically correct the position error caused between screens by providing a correction area on the boundary part of screens and deciding the horizontal and vertical picture components of the same value when plural images divided from a single image are composed again into a single image. CONSTITUTION:A single image is divided into a reference screen 1 and correction screens 2-4 etc. Then the correction areas 7 and 8 are prepared at the lower end part of the screen 1 and the upper end part of the screen 2 respectively on these two screens vertically adjacent to each other. The image levels are detected in both areas 7 and 8, and a horizontal position error is decided by the horizontal picture components of the same level. Thus the coordinate correction value is calculated and the position error caused between both screens 1 and 2 is automatically corrected with shift of the screen 2. In the same way, the position error is automatically corrected between both screens horizontally adjacent to each other when these divided screens are composed again into a single screen.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION The present invention divides an image into a plurality of images, each of which is incorporated into the same number of screens as the number of divisions, and again 1
An image processing apparatus that automatically corrects a positional deviation of an image that occurs at a screen boundary portion in a system that configures a screen, and when recording one image by dividing it into a plurality of images, it is possible to record without image deviation at the image boundary portion. The present invention relates to an image recording device that can be used.

[0002]

2. Description of the Related Art Information such as an adjustment position, an adjustment direction (horizontal and vertical), and a correction amount are necessary for adjusting the position, focus, uniformity, etc. of an image. In the conventional method, JP-A-1-
As shown in 251975, the position on the screen and the horizontal synchronizing signal and the vertical synchronizing signal of the image are made to correspond to each other in advance, and the adjustment position, the direction, and the correction amount are input to perform the adjustment. This method is also used to adjust the image position shift that occurs between screens when a plurality of images are simultaneously reproduced using the same number of multi-screens. In this case, since most of the judgments regarding the image position and the correction amount are made by human eyes, it is necessary to repeatedly specify the image position and the correction amount and reproduce the image.
Further, in order to prevent an image-free area from appearing on the screen due to image correction, the image signal is enlarged by adjusting the gain or the like to correct the image shift.

On the other hand, typical still image recording devices include a scanner device and a still camera. The scanner is JP 63
As described in -135064 and 62-154957, it is a device for contacting a still image to be recorded with an image sensor portion of a scanner to detect the gradation of the image. As described above, since the scanner brings the still image to be recorded into contact with the image sensor, the size of the still image to be recorded can be limited. Therefore, when the target to be recorded is large, the images are input several times, and the input images are sequentially stored in the buffer memory. At this time, the input is stopped on the basis of the reading end signal from the reading end detection unit, and the overlapping of the images at the boundary portion and the blanking are prevented. When the input of the image is completed, the output order of the image signals is adjusted based on the direction signal from the direction detection circuit, and the image signals stored in the buffer memory are output. Further, as described in Japanese Patent Laid-Open No. 63-180264, there is also one that can convert characters by identifying images and character information at the time of output so that characters can be edited by an external editing device such as a personal computer.

Further, like a scanner, it records a still image,
There is a still camera as an apparatus for reproducing and editing. JP 63
As described in -296024, the image of interest passes through the optical system and forms an image signal on the image sensor. This image signal is converted into a digital signal by an A / D conversion circuit after passing through a signal processing system for adjusting amplification, exposure, color and the like. Furthermore, signal processing such as separation into color components is performed,
When the shutter is pressed, it is recorded in an image memory such as a magnetic disk or IC memory. The still camera can adjust the magnification of the still image to be recorded, and the size of the target still image is almost unlimited. However, when a still image is recorded several times, there is no function to identify the boundary portion of the image, so it is necessary to correct the image shift occurring at the boundary portion of the image by using a reproducing device such as a personal computer after recording. is there.

[0005]

As described in the above-mentioned prior art, when a plurality of images are simultaneously reproduced by using a multi-screen, the positional deviation of the images which occurs between the screens causes the adjustment position and the correction amount to be detected from the reproduced image. Then, the value is externally input and correction is performed. At that time, most of the judgments regarding the image position and the correction amount are made by human eyes, and therefore, the position of the image and the correction amount must be repeatedly specified and the image reproduction must be repeated, which makes fine adjustment difficult.

In a scanner device used for recording / reproducing and editing an image, the size of the input still image can be limited because the input still image is brought into contact with the image sensor.
In addition, there is a limit to the amount of information that can be input at one time, and it takes time to record a large amount of information. On the other hand, in the case of a still camera, a large amount of information can be recorded at the same time, but when recording a still image in several times, there is no function to identify the boundary part of the image. Need to be edited.

The present invention solves these problems and provides an image processing apparatus that automatically corrects the positional deviation of images that occur between screens when a plurality of images are simultaneously reproduced on multiple screens. Further, when a still image is recorded several times, an image recording device capable of identifying the boundary portion of the image is provided.

[0008]

As described above, when a plurality of images are simultaneously played back using a multi-screen, the position shift of the images occurring between the screens of the multi-screen can be adjusted with the eyeballs while watching the playback image. It has to be done and fine adjustment is difficult. In the present invention, the following means are used to automatically detect and correct this positional deviation.

The image processing apparatus compares a horizontal image component and a vertical image component from an image in a designated area on the screen with a detection circuit, a memory for storing the detected signal, and two types of image signals for comparison. A signal discriminating circuit for discriminating objects and a counter for moving an image are provided. In the case of vertically adjacent screens, the lower edge of the upper screen and the upper edge of the lower screen are used as the correction area, and in the horizontally adjacent screens, the right edge of the left screen and the left edge of the right screen are used as correction areas. . With respect to the correction area of the reference screen adjacent to the screen to be corrected, the horizontal image component and the vertical image component of the image signal are detected by the detection circuit and stored in the memory. Similarly, for the correction screen, the image signal in the correction area is detected, and the signal level of the reference screen in the memory is compared by the signal determination circuit that determines the same signal level. The image on the correction screen is moved and compared until the signal level change in the memory and the signal level pattern in the correction area have the same value. When the signal level changes have the same value, the correction value is calculated from the relationship between the distance between the correction areas and the image position, and the image on the correction screen is moved by the correction value.

With respect to a still image recording apparatus, in the case of a scanner apparatus, it is difficult to input a large amount of information at the same time,
In the case of a still camera, the screen boundary cannot be identified when recording separately. In order to solve these problems, a camera is used as an input unit, and a signal processing unit for performing recording in the form of an output signal of a scanner device and a memory for recording only image signals at upper, lower, left and right ends of an input image are provided.

[0011]

[Function] A correction area is provided on each screen of a multi-screen, and an image signal in this area is detected and compared with an image signal in the correction area of an adjacent screen to obtain a correlation between images on the adjacent screens. You can If the image correlation is obtained, a correction value can be calculated from the image shift amount and the distance between the correction areas, and the image shift that occurs between multiple screens can be automatically corrected.

In the image recording device, a large amount of information can be recorded in a short time by using a camera as the input unit. Further, by providing a signal processing circuit for converting an image signal into an output signal form of the scanner device, an optical disk or a magnetic disk as a recording medium can be utilized very simply in a reproducing device such as a personal computer. Furthermore, by providing a memory for recording the top, bottom, left and right edges of the image,
When two images are divided and recorded, the boundary portion of the input image is compared with the image signals at the upper, lower, left, and right ends in the memory, and the image can be recorded without causing an image shift at the boundary portion.

[0013]

EXAMPLE 1 Example 1 of the image processing apparatus according to the present invention will be described below.

FIG. 1 is a diagram showing the relationship between screens and images of the image processing apparatus according to the present invention, and FIG. 2 is a block diagram of the system. 1
Is a reference screen, 2 to 4 are correction screens, 5 to 8 are correction areas, and 9
Is a corrected image, 10 is a detector for reading signal levels in the horizontal and vertical directions, 11a and 11b are memories for storing signal components, 12a and 12b are signal discriminators for discriminating signals having the same value, and 13 is a CPU (program Stored memory), 1
4 is an address counter, 15 is a video signal generator, 16
Indicates a color receiver.

A method of correcting a screen shift occurring between screens in the case where one still image divided into four parts is output to a four-screen multi-screen by using the image processing apparatus of the present invention will be described below. As shown in FIG. 1, the upper left screen of the four surfaces is set as the reference screen 1 and the image is corrected.

When the screens are vertically adjacent to each other, the reference screen 1
Of the correction area 5, at the bottom of the correction screen and the top of the correction screen 2, respectively.
6 is provided. The signal level detector 10 detects a signal level change of the image in the correction area 5 at the lower end of the reference screen 1 and stores the signal levels in the horizontal direction and the vertical direction in the memory 11 respectively.
It is stored in a and 11b. The signal level change in the correction area 6 at the upper end of the correction screen 2 is detected by the signal level detector 10, the horizontal signal level is compared with the signal level of the memory 11a, and the vertical signal level is compared with the signal level of the memory 11b. . If the positions of the correction areas 5 and 6 and the signal level do not match, but another position in the correction area 6 has the same signal level as the correction area 5, the CPU 13 calculates a correction value from the coordinates of the correction areas 5 and 6. The image is moved by the address counter 14. If the positions of the correction areas 5 and 6 do not coincide with the signal level and there is no signal level in the correction area 6 that is the same value as the correction area 5, the CPU 13 sets the size of the correction area 6 as a correction value and the address counter 14 displays the image. Moving.
The above operation is repeated until the positions of the correction area 5 and the correction area 6 and the signal level become the same value, and the image is moved by the address counter 13 by the length of the correction area 6.

When the adjacent screens on the left and right are to be corrected, the correction areas 7 and 8 are provided at the left end of the correction screen 3 and the right end of the reference screen 1. As in the case of the vertically adjacent screens, the correction method detects the signal level change in the correction area 7 of the reference screen 1 and stores the signal levels in the horizontal and vertical directions in the memory 11a,
It is stored in 11b. The signal level change in the correction area of the correction screen is detected by the signal level detector 10, and the signal level in the horizontal direction is compared with the memory 11a and the signal level in the vertical direction is compared with the memory 11b. As in the case of vertically adjacent screens, if the positions and signal levels of the correction areas 7 and 8 are different,
The CPU 13 sets a correction value until the correction areas 7 and 8 have the same value, and the address counter 14 moves the image.
After the position and the signal level match, the image is moved by the address counter 13 by the length of the correction area.

In the correction of the lower right screen 4, the image shift is corrected by the same method using either the correction screen 1 or the correction screen 2 which has already been corrected as a reference screen. Regarding the reference screen In the present embodiment, the case of the upper left screen is shown, but any of the four screens can be used as the reference screen, and there is no problem in correcting the screen shift.

By automatically correcting the image positions of the adjacent upper, lower, left, and right screens in this way, one still image divided into four can be reproduced on the four-sided multi-screen without causing image shift. . In the present embodiment, the case where a still image is divided into four and output to a four-sided multi-screen has been described. However, when the number of screens increases or in the case of a moving image, a screen shift between screens is corrected by the same method. You can

Second Embodiment A second embodiment of the image processing apparatus according to the present invention will be described below.

FIG. 1 is a diagram showing the relationship between screens and images of the image processing apparatus according to the present invention, FIG. 2 is a block diagram of the system, and FIG. 3 is an image signal. 1 is a reference screen, 2 to 4 are correction screens, 5
Reference numeral 8 is a correction area, 9 is a corrected image, 10 is a detector for reading signal levels in the horizontal and vertical directions, 11a and 11b are memories for storing signal components, 12a and 12b are signal discriminators for discriminating signals having the same value, Reference numeral 13 is a CPU, 14 is an address counter, 15 is a video signal generator, 16 is a color image receiver, and 17 is a gain adjuster.

In the case where one image divided into four parts is output to a four-sided multi-screen by using the image processing apparatus of the present invention, the screen shift occurring between the screens is corrected with the upper left screen as the reference screen 1. The method will be described.

As shown in the first embodiment, when the reference screen and the correction screen are vertically adjacent to each other, the correction regions 5 and 6 are provided at the lower end of the reference screen 1 and the upper end of the correction screen 2, respectively, and when the left and right are adjacent to each other. Provides correction areas 7 and 8 at the left end of the correction screen 3 and the right end of the reference screen 1. A signal level detector 10 detects a signal level change of an image in the correction area 5 of the reference screen 1 and stores the horizontal and vertical signal levels in the memory 11 respectively.
It is stored in a and 11b. A signal level change in the correction area of the correction screen is detected by the signal level detector 10, and the horizontal signal level is compared with the signal level of the memory 11a, and the vertical signal level is compared with the signal level of the memory 11b. When the signal level of the memory and the signal level of the correction screen are different, the CPU 13 calculates the correction value and the address counter 14 moves the image. This operation returns the positions of the correction screens 5 and 6 and the signal level to the same value, and finally the address counter 14 moves the image by the length of the correction area 6. At this time, if the correction value is large, a region without an image may appear on the screen. In this case, the gain of the video signal generator is adjusted by the gain adjuster 17 so that the image-free area does not appear on the screen in advance, and the image signal is enlarged. Image 9 is set larger than the screen,
An image-free area does not appear on the screen and the image shift can be corrected. However, in this case, it is desirable to set each of the divided images as shown in FIG.

In this embodiment, a method of enlarging the image and correcting the image shift at the screen boundary portion without causing a region without the image to appear on the screen even when the correction value is large has been described. In this way, by automatically correcting the image positions of the vertically, horizontally, and adjacently adjoining screens, it is possible to reproduce the divided still images on the multi-screen without causing the image shift. Although the present embodiment has been described with respect to a four-sided multi-screen, even when the number of screens is increased, it is possible to correct the screen shift that occurs between the screens by the same method.

Third Embodiment A third embodiment of the image processing apparatus according to the present invention will be described below.

FIG. 1 is a diagram showing the relationship between screens and images of the image processing apparatus according to the present invention, FIG. 2 is a block diagram of the system, and FIG. 3 is an image signal. 1 is a reference screen, 2 to 4 are correction screens, 5
Reference numeral 8 is a correction area, 9 is a corrected image, 10 is a detector for reading signal levels in the horizontal and vertical directions, 11a and 11b are memories for storing signal components, 12a and 12b are signal discriminators for discriminating signals having the same value, Reference numeral 13 is a CPU, 14 is an address counter, 15 is a video signal generator, and 16 is a color image receiver.

When a still image divided into four parts is output to a four-sided multi-screen using the image processing apparatus of the present invention, a screen shift occurring between the screens is corrected with the upper left screen as the reference screen 1. I will explain how to do.

As shown in the first embodiment, when the reference screen and the correction screen are vertically adjacent to each other, the correction areas 5 and 6 are provided at the lower end of the reference screen 1 and the upper end of the correction screen 2, respectively, and when the left and right are adjacent to each other. Provides correction areas 7 and 8 at the left end of the correction screen 3 and the right end of the reference screen 1. A signal level detector 10 detects a signal level change of an image in the correction area 5 of the reference screen 1 and stores the horizontal and vertical signal levels in the memory 11 respectively.
It is stored in a and 11b. A signal level change in the correction area of the correction screen is detected by the signal level detector 10, and the horizontal signal level is compared with the signal level of the memory 11a, and the vertical signal level is compared with the signal level of the memory 11b. When the signal level of the memory and the signal level of the correction screen are different, the CPU 13 calculates the correction value and the address counter 14 moves the image. Repeat this operation until the correction level 5 and 6 positions and the signal level become the same value,
Finally, the address counter 13 moves the image by the length of the correction area 6.

At this time, if an image-free area may appear on the screen, the third embodiment enlarges the image signal on the screen by adjusting the gain or the like so that the image-free area does not appear. showed that. In this embodiment, the CPU 13
A method for correcting an image shift without enlarging an image when a part without an image appears appears in a method in which a program for designating an image output area is added to.

In the case where there is an image-free area, a position which has the same value in the correction areas 5 and 6 or the correction areas 7 and 8 and a signal level suddenly show a difference when entering the image-free area. In this way, the area excluding the area where the signal level suddenly differs is C
The PU 13 specifies the image output area, and outputs the image only in this area in both the reference screen and the correction screen.

Thus, by automatically correcting the image positions of the vertically, horizontally, and adjacently adjacent screens, it is possible to reproduce the divided still images on the multi-screen without causing the image shift.

In this embodiment, the method of correcting the image shift at the screen boundary portion without enlarging the image is shown. However, this method is used when the image-free area on the screen corresponds to the outer peripheral portion of the entire multi-screen. It is better to do. Although the present embodiment has been described with respect to a four-sided multi-screen, even when the number of screens is increased, it is possible to correct the screen shift that occurs between the screens by the same method.

Example 4 Example 4 of the image recording apparatus according to the present invention will be described below.

FIG. 4 shows a block diagram of the image processing apparatus according to the present invention, and FIG. 5 shows the relationship between the input image and the correction area. 18 is an optical system, 19 is an image sensor, 20 is a signal processing system for adjusting amplification, exposure, color, etc., 21 is an A / D conversion circuit, 2
Reference numeral 2 is a signal processing system for separation into color components, 23 is a shutter, 24 is a system controller, 25a and 25b are memories, 26 is an image memory, 27a and 27b are comparison memories, and 28 is a signal level that is equivalent. Discrimination circuit, 29
Is a CPU (memory storing a program), 30 is a screen,
Reference numeral 31 indicates a correction area, and 32 indicates a comparison area.

A description will be given below of a method of recording without dividing an image at the screen boundary portion when one still image is divided and sequentially recorded by using the image recording apparatus of the present invention.

First, a part of the still image divided is recorded. The target image is formed on the image sensor 19 from the optical system 18 and becomes an image signal. This image signal is converted into a digital signal by an A / D conversion circuit 21 after passing through a signal processing circuit 20 that adjusts amplification, exposure, color and the like. Furthermore, the signal processing system of 22 performs processing such as decomposition into color components, and the shutter 2
When 3 is pressed, it is recorded in the image memory 26. At this time,
The image signals of the correction areas 31 at the lower end and the right end of the screen 30 are recorded in the memories 25a and 25b, respectively.

The recorded image is used as a reference image, and a newly captured image is compared with its boundary portion. Even in the adjustment state before recording, the image signal is always fetched from the image sensor 19 to the signal processing system 22. Especially, the image signal in the comparison area at the upper end and the left end of the screen is compared memories 27a and 27b.
Are sequentially sent to. The image signals of the comparison memories 27a and 27b and the image signals of the memories 25a and 25b are a discriminating circuit 28 for discriminating signal levels having the same value, and C for detecting a deviation direction.
Compared by PU29. When the images are vertically adjacent to each other, the signal 25a at the lower end of the reference image is compared with the signal 27a at the upper end of the newly captured image. When the images are horizontally adjacent, the signal 25b at the right end of the reference image and the signal 27b at the left end of the captured image are compared. When these signals have the same value, a mark appears on a part of the finder as shown in FIG. At this time, if the shutter is pressed, adjacent images can be recorded without image shift at the screen boundary. If there is an image shift, the direction of the shift is displayed as shown in FIG.

In this embodiment, the case where the lower end and the right end of the screen are used as the correction areas has been described, but the same applies to the case where any of the upper, lower, left and right ends is used as the correction area.

Example 5 Example 5 of the image recording apparatus according to the present invention will be described below.

FIG. 6 shows a block diagram of the image recording apparatus according to the present invention, and FIG. 5 shows the relationship between the input image and the correction area. 18 is an optical system, 19 is an image sensor, 20 is a signal processing system for adjusting amplification, exposure, color, etc., 21 is an A / D conversion circuit, 2
Reference numeral 2 is a signal processing system for separation into color components, 23 is a shutter, 24 is a system controller, 25a and 25b are memories, 26 is an image memory, 27a and 27b are comparison memories, and 28 is a signal level that is equivalent. Discrimination circuit, 29
Is a CPU (memory storing a program), 30 is a screen,
Reference numeral 31 is a correction area, 32 is a comparison area, and 33 is a signal conversion circuit.

In the present embodiment, as in the case of the fourth embodiment, a still image can be divided and recorded without causing image shift at the screen boundary portion, and the signal recorded in the image memory 24 is the same as the output of the scanner. An image recording device having a signal form will be described.

As shown in FIG. 6, a signal conversion circuit 32 for converting an image signal into an output signal form of a scanner is added to the image recording apparatus described in the fourth embodiment. The image misregistration is corrected by the same method as in the fourth embodiment. A correction area 31 is provided at the lower end and the right end of the recording screen, and a comparison area 32 is provided at the upper end and the left end. During recording, the signals 25s, 2 of the correction area of the previously recorded image are recorded.
5b and the signals 27a and 27b of the comparison area to be newly recorded are compared by the discriminating circuit 28 and the CPU 29 at any time. If there is an image shift, the direction of the shift is displayed as shown in FIG. 5, and the position of the image to be newly recorded is adjusted. When both are the same value, a mark appears on a part of the viewfinder, and when the shutter is pressed at this time, an image with no image shift at the screen boundary can be recorded. The image signal recorded by pressing the shutter is converted into the output form of the scanner by the signal converter 32,
It is recorded in the image memory. The image thus recorded can be edited or subjected to other processing in the same manner as when the image is input from the scanner. If the image memory of this image recording device is the same as the medium of the personal computer, editing can be performed on the personal computer through a very simple interface.

Example 6 Example 6 of the image recording apparatus according to the present invention will be described below.

FIG. 7 shows a block diagram of the image recording apparatus according to the present invention, and FIG. 5 shows the relationship between the input image and the correction area. 18 is an optical system, 19 is an image sensor, 20 is a signal processing system for adjusting amplification, exposure, color, etc., 21 is an A / D conversion circuit, 2
Reference numeral 2 is a signal processing system for separation into color components, 23 is a shutter, 24 is a system controller, 25a and 25b are memories, 26 is an image memory, 27a and 27b are comparison memories, and 28 is a signal level that is equivalent. Discrimination circuit, 29
Is a CPU (memory storing a program), 30 is a screen,
Reference numeral 31 is a correction area, 32 is a comparison area, 34 is a gradation degree determination circuit, and 35 is a binarization circuit.

In the present embodiment, as in the case of the fourth embodiment, the still image can be divided and recorded without causing image shift at the screen boundary portion, and the character information portion of the recorded still image is converted into the character signal form. An image recording device for recording in the image memory will be described below.

As shown in FIG. 6, a gradation degree discriminating circuit 34 and a binarizing circuit 35 are added to the image recording apparatus described in the fourth embodiment. The image misregistration is corrected by the same method as in the fourth embodiment. A correction area 31 is provided at the lower end and the right end of the recording screen, and a comparison area 32 is provided at the upper end and the left end. At the time of recording, the signals 25a and 25b in the correction area of the previously recorded image and the signals 27a and 27b in the comparison area to be newly recorded are discriminated at any time by the discrimination circuit 28 and the CP.
Compare by U29. If there is an image shift, see Fig. 5.
The displacement direction is displayed as shown in, and the position of the image to be newly recorded is adjusted. When both are the same value, a mark appears on a part of the viewfinder, and when the shutter is pressed at this time, an image with no image shift at the screen boundary can be recorded. The image signal recorded after the shutter is pressed is the gradation degree determination circuit 34.
The character information and the image information are identified by the difference in gradation from the surroundings. The character information portion is converted into a character signal through a binarization circuit and recorded in the image memory.
When it is necessary to take in character information and edit it like a scanner device, a large amount of information can be recorded and edited in a short time in this embodiment. Further, by adding the signal conversion circuit 33 shown in the fifth embodiment, the character portion of the recorded image can be discriminated and the character portion can be edited on the personal computer.

[0047]

According to the present invention, one image is divided into a plurality of images, each of which is incorporated into the same number of screens as the number of divisions, and in a system which constitutes one screen again, the image shift occurring at the screen boundary portion is detected, It is possible to automatically correct a positional deviation of an image that occurs between screens when reproducing is performed on multiple screens. In addition, when one image is divided and recorded, it is possible to perform recording without image shift at the screen boundary portion.

[Brief description of drawings]

FIG. 1 is a relationship diagram between an image and a screen of an image processing apparatus according to an embodiment of the present invention.

FIG. 2 is a block diagram of an image processing apparatus according to an embodiment of the present invention.

FIG. 3 is a block diagram of an image processing apparatus according to an embodiment of the present invention.

FIG. 4 is a block diagram of an image recording apparatus according to an embodiment of the present invention.

FIG. 5 is a relationship diagram between an image and a screen of the image recording apparatus according to the embodiment of the present invention.

FIG. 6 is a block diagram of an image recording apparatus according to an embodiment of the present invention.

FIG. 7 is a block diagram of an image recording apparatus according to an embodiment of the present invention.

[Explanation of symbols]

1 ... Standard screen, 2-4 ... Correction screen, 5-8 ... Correction area,
9 ... Corrected image, 10 ... Signal detector, 11a, 11b ... Memory, 12a, 12b ... Signal discriminator, 13 ... CPU, 1
4 ... Address counter, 15 ... Video signal generator, 16
... color receiver, 17 ... gain adjuster, 18 ... optical system,
19 ... Image sensor, 20 ... Signal processing system, 21 ... A /
D conversion circuit, 22 ... Signal processing system, 23 ... Shutter, 2
4 ... System controller, 25a, 25b ... Memory,
26 ... Image memory, 27a, 27b ... Comparison memory, 2
8 ... Signal discrimination circuit, 29 ... CPU, 30 ... Screen, 31 ...
Correction area, 32 ... Comparison area, 33 ... Signal conversion circuit, 34
... Gradation degree determining circuit, 35 ... Binarizing circuit.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Mayor Igarashi Mayumi Igarashi 292 Yoshida-cho, Totsuka-ku, Yokohama-shi, Kanagawa Stock media, Hitachi, Ltd.

Claims (7)

[Claims] 1. In a system in which one television image is divided into a plurality of screens and each television signal is formed on the same number of television screens as the number of divisions, an image shift that occurs between divided screens is detected and automatically detected. An image processing apparatus characterized by performing shift correction. 2. The image processing device according to claim 1, wherein an image signal near an adjacent screen is detected, and an amount of image shift occurring at a screen boundary portion obtained from a correlation between the respective signals corresponds to the entire screen of either one. An image processing apparatus having means for automatically shifting and correcting the shift. 3. The image processing apparatus according to claim 1, wherein
The image signals of the adjacent screens are partially deleted in the entire outer frame of the combined screen according to the image loss part caused by correcting the image shift, and the irregular loss caused by the screen shift is automatically corrected. An image processing apparatus comprising: 4. The image processing apparatus according to claim 1,
An image processing apparatus comprising: an adjusting unit that enlarges an image signal by an amount corresponding to an image missing portion generated by correcting an image shift so that the missing portion does not appear on a screen. 5. An apparatus for inputting an image by dividing it into a plurality of images, having a memory for recording at least one of the upper and lower edges of the input image and the left and right edges of the input image, and continuously inputting adjacent images in the vertical and horizontal directions. Image recording characterized by having a correction function for comparing the recorded signals with the image signals at the top, bottom, left and right ends of the newly input signal to prevent image deviation at the image boundary apparatus. 6. The image recording apparatus according to claim 5, wherein the image signal is recorded on an optical disk or a magnetic disk in the same output signal form as the scanner. 7. The image recording apparatus according to claim 5 or 6,
An image recording apparatus comprising: a conversion unit for converting a character information portion of an input still image into a character signal form.