JPS59192249A - Method and device for checking retouched image - Google Patents

Abstract

PURPOSE:To check a retouched image extremely easily and exactly by displaying the retouched image together with the unretouched image stored in advance on a monitor television, and checking the retouched image in accordance with the displayed image. CONSTITUTION:For example, an original film 1 as the object to be checked is photographed with an image pickup device, and the image signal g1 is stored in an image signal memory 6. After a necessary retouch has been given to the film 1, the retouched image is photographed and its image signal g2 is fed to a signal synthesizer 7. On the other hand the unretouched image signal g1 stored in the memory 6 is also fed to the synthesizer 7. A synthesized signal g3 obtained by synthesizing both signals g1 and g2 fed to the synthesizer 7 is produced to feed it to a monotor television 8 and display the image. As a result, the retouched image can be extremely easily and exactly.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to inspecting a modified portion of an image, and in particular, it is possible to easily distinguish between a pre-correction image and a post-correction image to determine whether the correction has been correctly performed. This makes it possible to easily check whether the

Conventionally, in the printing industry, there have been various formats such as variations of images such as characters, text explanatory parts, and combinations thereof.

Before such an original film is actually used to produce a printing plate, it is generally checked in its original state or by making a proof print.

Corrections will be made as necessary. The corrected original film must also be checked in the same manner as described above.

Such a check of the original film after correction is generally performed by comparing the film before correction with the film after correction. However, if you use the unedited film as is and make corrections by pasting strips or removing text, the unedited image [original film with an elephant] is required for checking. no longer exists.

Therefore, in this case, it is necessary for the checking operator to memorize the image before correction, and the amount of information that can be stored is extremely limited, and there are many inconveniences such as checking errors due to erroneous memory. Especially when creating a printing block,
When a correction is required, the image before the correction does not exist because the correction work is performed on the original image itself.Therefore, the image after correction is corrected correctly. However, even if a proof is made for one image before correction, the original film after correction is checked for the following reasons. It is also difficult to do it completely.

In other words, corrections to the original film are often carried out photographically (and the image may change even in areas that should not be corrected).

For example, when a character in a certain part is changed to another character and then erased, some characters in the part that do not need to be corrected may also be erased due to carelessness, or some characters that should be corrected may be erased as well. Occasionally, dust may be imprinted on areas that are not intended for use due to carelessness during the photographic process.

However, since the corrected parts are generally indicated on the proof with red embossed paper, etc., the checkers only focus on the parts indicated with the red embossed paper, etc., so they do not feel safe making corrections. Parts are not strictly checked. Therefore, there is a problem in that image changes such as character changes or missing characters in parts that should not be corrected due to mistakes during correction work are easily overlooked.

Note that the above-mentioned problems can be alleviated to some extent by strictly checking not only the parts that require correction as indicated by the red empi, etc., but also all parts. however,
Performing such a check causes another problem in that the check time is extremely long and efficiency is extremely reduced.

The present invention solves these conventional problems, and makes it possible to compare the image before correction with the image after correction, such as for a printing plate for stamp 111 or an original film (for images that require correction). It is an object of the present invention to provide such a method and apparatus that it is possible to perform an accurate check without increasing the check time.

That is, according to the present invention, checking of one image before correction is performed as follows.

First, an uncorrected image of the object to be inspected that requires correction is captured in advance by an imaging device and stored.

Next, a corrected image of the object to be inspected is captured by an image capturing device and displayed on a monitor television together with the pre-stored image before correction.

In this case, the image before correction and the image after correction should be projected so that the elephant's gaze is aligned, and the corrected part can be distinguished between the image before correction and the image after correction. Keep it. In this way, the image displayed on the monitor TV,
This is to check both sides of the correction. By doing this, you can check whether the parts that should be corrected have been corrected correctly or not.
Alternatively, it is possible to very easily and accurately check whether unnecessary changes have been made due to mistakes even in parts that should not be corrected.

FIG. 1 is a schematic explanatory diagram of an apparatus for inspecting one image before correction according to the present invention.

In Fig. 1, the object to be inspected is, for example, an original film (1
) is imaged using an image capturing device. (The floor device may be any one such as a television camera (2).

The TV camera (2) takes an image of the original film (1).
It outputs an image signal by using a light source (
3) is performed while irradiating with light. If the object to be inspected is of a reflective type, the light source (3) can be switched to a reflective light source.

The television camera (2) is preferably equipped with a zoom lens so that the imaging magnification can be changed appropriately.The image signal output by the television camera (2) is controlled by the camera control (4). Here, necessary adjustments such as signal correction and amplification are performed.If the original film (1) is the image f before correction, switch (5) is connected to terminal (a). By doing so, it is possible to reproduce a single image signal (91) as an image signal whenever necessary.

Next, after making necessary corrections to the original film il+, the corrected image is photographed in the same manner as described above. The story signal (I2) of the corrected image captured in this way is input to the signal synthesis device (7) by connecting the switch (5) to the terminal (b).

On the other hand, the image signal (gl) stored in the plane image signal storage device (6) is also input to the signal synthesis device (7). The signal synthesizer (7) synthesizes the image 1 signal (gl) and the image 1 signal (I2) input to the signal synthesizer (7) and outputs a composite signal. In this case, the synthesis of one-image signals is to create a signal by synthesizing which makes it possible to distinguish between the correct portions of the image before correction and the image after correction.

The synthesized signal (I3) synthesized by the signal synthesizer @ (7) is input to the monitor TV (8) and the synthesized signal (I3) is input to the monitor TV (8).
Based on the composite signal (93), an image is displayed.

By the way, when a composite signal is created by the signal synthesis device (7), any method can be adopted as a method for determining the modified portion between the image before modification and the image after modification. An example is shown below. When using a black and white television as a monitor television, the following procedure may be used.

Figure 2 shows how a composite signal (I
5) is obtained.

The image corresponding to signal (1) in the image signal (gl) of the image before correction is the image that should be deleted, and the image that was omitted due to a mistake in the image before correction is added due to correction. It is assumed that the signal corresponding to the added image appears as a signal (m) in the corrected image symbol (I2).

Naturally, the signal (6) corresponding to the one image deleted by the modification does not appear in the modified image signal (I2).

Either one of the double-opening signal (yl) and the image signal (92) is inverted from positive to negative. In the case of FIG. 2, the image 1 signal is inverted so that the corrected image f signal becomes a negative image r image, and the image 1 image signal Q92') is obtained.

The #J image signal (92') obtained by inversion in this way and the image [
The composite signal (I3
). This composite signal (I3) has a uniform intermediate level, except for the signal (e') corresponding to the image deleted by modification and the signal (m') corresponding to one image added by modification. .

In the composite signal (,93), the signal (l') corresponding to the image deleted by the modification has an extremely high level (becomes
Also, the signal corresponding to the newly added image shadow (
]11') has an extremely low level.

The composite signal obtained in this way is sent to a monitor TV (8
) and displaying the composite image [By projecting the elephant, it is not only possible to identify the modified part very easily, but also to see if the content of the modification is the addition of the house or the deletion of the picture rt. Noga etc. can also be distinguished very easily.

The third factor is the image α0 before correction and the image 1 after correction (11)
This is to explain a composite image 1jtu2+ displayed on a monitor television according to the present invention. Suppose that "AN" in the characters 1TOPANJ in the image before modification @00) is changed to "PA", and rNJ is added after that, and the correct characters are corrected as hfMaD after modification (To p P A NJ). .

In this case, the composite image (12
), the image that has changed due to the correction [elephant is clearly visible]. Of the images before correction, "AN" is a positive image [
The image after correction [P A of the elephant]
NJ is a negative image [an image that is prominently displayed at home and is not modified; ``Top J is not displayed on a monitor TV.

Next, a color monitor TV is used as a monitor TV (8) as an example of K pond so that the revised part can be identified1.
- We will explain the case when

In this case, for example, the image signal (gl) of one image before correction
and the corrected image [elephant image signal (g2)] are synthesized to represent different colors and are displayed on a color monitor television (8
), just do it.

FIG. 4 is an explanatory diagram for displaying a composite image (elephant) on a color monitor TV in this way, and the image signal (11) of the image f elephant 00 before correction is converted into an R (red) signal, for example. The image r-elephant signal (92) of the corrected image [elephant (]11) is converted to G(
A composite image 1t (13i) is generated based on the composite signal (I5).
is blown out on the color 41 monitor television (8). By doing this, the part that is not corrected [the letter ropJ is R
Displayed in the color Y (yellow), which is a composite of the colors of and G,
The part of the image j-TOPANJ before modification that has been deleted due to the modification work, the characters "AN" are displayed as R, and the characters "PAN" newly added as a result of the modification work are displayed as G. However, the portion where the letters "AN" and "PAN" overlap on the screen will be displayed as Y.

As described above (by displaying the image before correction and the image after correction on a monitor TV so that they can be distinguished from each other, the corrected part will be displayed in a different color, making it extremely easy to identify the corrected part. Not only that, but the contents of the modifications can also be inspected very easily.

Note that the color in which the image before correction and the image after correction are to be displayed can be arbitrarily set as necessary.

Therefore, the signals (gl) and (g2) of the image before correction [elephant and image after correction] are R, which is the three elephant colors of color television.
, GJ signals, an appropriate known circuit such as a matrix circuit may be provided.

As explained above, the modified image f is inspected based on the composite image of the image before modification and the image after modification. and the corrected image must be in register on the monitor television screen. In this way, the registration of the two images can be easily adjusted by using a pin stem or the like to place the object to be inspected, such as the original film (1), in a fixed position. Any known method may be selected as needed to match the values.

Also, when compositing the image before correction and the image after correction, the size of both images on the monitor TV screen can be easily adjusted by using a zoom lens as the lens of the TV camera (2). Be able to do that.

In addition to the original film for printing, various objects to be inspected include, for example, printing plates, printing plates, etc.

In addition, the inspection process for such inspected objects includes cases where correction work is required, such as when proofreading the characters on the original plate, when proofreading the original film, and when correcting the characters during printing, and when there is dirt or text in the photographic process. Examples include processes where falling off easily occurs.

As explained above (according to the method of the present invention, it is possible to easily and quickly identify the corrected part of the image, and the content of the correction can also be easily and quickly determined). It is possible to inspect the image extremely easily and quickly, and also to perform an accurate inspection.Therefore, the number of strokes can change due to mistakes or carelessness in areas that should not be corrected, which previously caused problems. The number of missed checks on areas that have been overlooked should also be significantly reduced.

Furthermore, the present invention provides a novel device for use in the above inspection.

[Brief explanation of drawings]

Fig. 1 is a schematic explanatory diagram of the inspection device of the present invention, Figs. 1 and 2 are explanatory diagrams of the signal synthesis situation, and Figs. An explanatory diagram to explain how the composite image r house is displayed is shown below.
-0 (])...Original film (2), TV camera (3)...Light source (,1), camera control (5), switch (6), image signal storage device (7), signal Composite device (8)... Monitor TV/Video (10)... Image before correction (Elephant (11)... Image after correction [Elephant (12), (13)) - Composite image patent applicant Toppan Printing Co., Ltd. Company Representative Kazuo Suzuki Figure 1 ↑ 9-3 Figure 2: Ql +C 355- Figure 3);)

Claims (1)

[Scope of Claims] One image of the object to be inspected that requires correction is stored in advance in a storage device, and the corrected image of the object to be inspected is captured by a one-image imaging and forging device. Then, the corrected image is transferred to the pre-stored uncorrected image. (2) Image f is imaged and an image signal is output. an image capturing device that captures the 1fjr image [the image r output by the floor device];
an image signal storage device that can store an image signal as necessary; The output corrected image signals are combined so that each image signal represents a different color, or one of the image signals is a positive signal and the other is a negative signal. a signal synthesizer that synthesizes and outputs a synthesized signal in a manner similar to the above, and a signal synthesizer that synthesizes a synthesized image [i
! ili [A modified stroke count inspection device characterized by comprising a display device.