JPH1031192A - Color viewer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the operation of a color viewer and to surely match the hue of a photographic original and the hue of image data when the hue of the image of an original and the hue of the image data are matched by using a foot type ON/OFF switch which can be operated by a foot as the ON/ OFF switch of a light source. SOLUTION: When the hue of the image data is adjusted, a film 6 having the image of the original is fixed on the screen 3 of the color viewer 2 by a stop part 5. Then, the light source of the viewer 2 is operated by the foot type ON/OFF switch 4. When the hue of the image of the original and the hue of the image data are matched, the state of the viewer 2 can be always operated as necessary. Besides, since the light source of the viewer 2 can be operated by the switch 4, it can be adjusted while working with both hands. Therefore, the hue of the image data and the hue of the image of the original can be surely matched and working efficiency is enhanced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an image manuscript such as color characters, photographs, figures, pictures, and the like, and an image data which is digital data obtained by performing color separation of the image manuscript when a printing plate is prepared. It relates to a color viewer used for color matching with.

[0002]

2. Description of the Related Art Conventionally, in the field of plate making and printing of printed matter, a line drawing manuscript of a color character, a photograph, a character, an illustration, a picture, and the like is read by a color scanner, and the read data is read as a YMCK four-color negative film or a positive film. The film is processed into a film, and the four color films are used as a master when a printing plate is prepared.

Usually, the color of image data, which is digital data read by a color scanner, and the color of an image original are slightly different. To match the color of both data, the negative of the YMCK, which is the original printing plate, is used. A need has arisen to correct the color of the film or positive film. Also,
Negative film and positive film created by the above work may have dust or scratches when they are made or stored, so make a printing plate based on the film with dust or scratches When a printed material is prepared by using a printing plate, the above-described portion may have print defects, such as missing prints, resulting in a defective printed material.

[0004] In order to solve the above-mentioned problems, a retouching operation for correcting a film, adjusting colors by reducing halftone dots, correcting scratches, and synthesizing two or more sets of pictures. Was made. Retouching is a fine manual work to solve the above-mentioned problem, so that retouching can be performed only by skilled persons, and the work content and work time differ depending on the skill of the person performing the retouching.

In recent years, with the improvement of computer capabilities,
Computers are increasingly used for printing and plate making processes. That is, an image document is captured by a computer as digital data such as bitmap data and vector data by a color scanner, and the layout design of the image data is performed by the computer based on the image data captured as digital data.

In addition, a computer can correct not only the layout but also a subtle difference in color between an image original and image data used in the computer on a display of the computer. When the above work is performed using this computer, unlike a conventional manual work, retouching can be performed by a person without skilled skills, and work can be performed without difference in personal skills and experience. As efficiency has improved, the task of creating printing plates has shifted from manual to computer-based.

However, when a printed matter is created by combining the image data displayed on the display with the color of the image original under the light of a normal fluorescent lamp or the like, the color of the printed matter after the creation is completely different from the color of the image original. was there. This is because a computer display that displays image data is usually a spontaneous light emission type such as a CRT, has a different light emission state from a light reflection type image original, and when light such as a normal fluorescent lamp is used, It was not possible to reliably match the colors of objects having different light emission states.

Therefore, when the color of the image document and the color of the image data are to be matched, it is necessary to adjust the color by setting the illuminance in the room to a constant lightness. Specifically, the interior of the room is set to D50 for color evaluation (CIE daylight D50), the illuminance of the work surface is set to 2000 lx, and the surroundings are set to the basic colors such as the achromatic color (N8) of the matte Munsell Valleu 8 Matching was done.

[0009] Further, since it is difficult to make the entire interior of a room a constant brightness, a color viewer that irradiates only an image original with basic light is used. As shown in FIG. 3, the color viewer is fixed by a stop for mounting a film having an image document, and the light source of the color viewer is
In addition to performing an optical inspection by N / OFF, an adjustment was made to match the image data with the color of the image original while comparing the image data displayed on the display. Hereinafter, this work will be described in detail.

First, the operator who matches the color of the image data with the image data fixes the film having the image document with the stop portion 5 provided at the upper or lower part of the screen of the color viewer. ON
The light source is turned on by the / OFF switch 7, then the color of the image document is confirmed, and then the side of the color viewer 2 is turned on.
The light source is turned off by the / OFF switch 7, and then adjustment is performed so that the color of the image data displayed on the display of the computer 1 matches the color of the image document. Correcting the color of the image data displayed on the computer display after turning off the light source of the color viewer by the side ON / OFF switch as described above is because the color of the computer display is changed by the light of the color viewer. This is because the correct color cannot be adjusted.

[0011]

However, the side ON / OFF switch of the light source of the color viewer is usually provided on the side or the whole surface of the color viewer. It was difficult to adjust the color of the data, and the work efficiency could not be improved.

Further, when the operator turns on the side ON / OFF switch, the operator's eyes approach the color viewer, and when adjusting the color of the image data on the display, the afterimage of the light source of the color viewer remains, and the image on the display remains. The color of the data could not be adjusted reliably.

Further, the operator can turn on / off the side surface.
Since the switch is operated by hand, when adjusting the color of the image data displayed on the color viewer and the computer display, it is not possible to perform fine adjustment work.
In some cases, the work took a long time.

Further, since the stop for fixing the film having the image original on the screen of the color viewer is provided at the upper or lower part of the screen, the upper or lower end of the film having the image original is provided. However, even if a film having image documents of different sizes can be fixed, a shadow or the like may occur on the image document.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and when performing color tint of an image document and image data, the color viewer can be easily operated and color of a photo document and image data can be changed. An object of the present invention is to provide a color viewer that can be surely matched.

[0016]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above object, and a color viewer according to the first aspect of the present invention is provided with a light source in a box and a film on a screen. And a foot-operated ON / OFF switch that can be operated with a foot in a color viewer that performs an optical inspection by switching an ON / OFF switch of a light source. is there.

According to a second aspect of the present invention, there is provided a color viewer in which a light source is provided in a box, a film is disposed on a screen, and an optical inspection is performed by switching an ON / OFF switch of the light source. Wherein a movable stop for stopping the film is provided on the screen.

According to a third aspect of the present invention, there is provided a color viewer in which a light source is provided in a box, a film is disposed on a screen, and an optical inspection is performed by switching an ON / OFF switch of the light source. In the above, the ON / OFF switch is a foot-operated ON /
It is an OFF switch, and is provided with a movable film stopper on the screen of the color viewer.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A color viewer according to the present invention will be described below with reference to the drawings. FIG. 1 is a simplified diagram of a system for performing tint showing an example of a color viewer according to an embodiment of the present invention. FIG. 2 is a front view showing a screen of the color viewer of the present invention. In FIG. 1, reference numeral 1 denotes a computer which displays an image document read by a color scanner on a display, 2 denotes a color viewer of the present invention, and 4 denotes a foot type ON / OFF for turning on / off a light source of the color viewer. An OFF switch 3 is a screen of the color viewer 2, and 5 is a stop for fixing a film having an image document.

The color matching between an image document and image data in an example color viewer according to an embodiment of the present invention will be specifically described. First, an image document such as a picture, a photograph, a drawing, or the like is read by a color scanner (not shown) and stored as image data composed of digital data. The operator who adjusts the color of the image data uses the stop unit 5 to move the film 6 having the image original to the screen 3 of the color viewer 2.
Fix on top. In this embodiment, two stop portions 5 are provided on the screen of the color viewer in order to fix the upper and lower ends of the image document 6. However, the number of stop portions is not limited to the above-mentioned number, but can be changed according to the size of the film having the image document. The number of lines that can be fixed on the viewer screen is provided.

Next, a foot type ON / OFF switch 4
, The light source of the color viewer 2 is switched on.
Next, the image data is displayed on the display of the computer 1. Next, the image data and the color of the image document 6 are checked. Next, the light source of the color viewer 2 is turned off by the foot type ON / OFF switch 4. Next, the work is completed by adjusting the color of the image data on the display of the computer 1.

[0022]

As described above, according to the present invention, according to the color viewer of the present invention, the operator can operate the light source of the color viewer by using the foot type ON / OFF switch. You can always manipulate the state of the color viewer when you need it.

Also, the operator can use a foot type ON / OFF.
Since the light source of the color viewer can be operated by the switch, the light source of the color viewer can be adjusted while working with both hands.

Further, since the film having the image document is securely fixed by the stop portion, no shadow or the like is formed on the image document, and the color of the image document itself can be confirmed.

Further, when adjusting the color of the image data and the image original, the color is adjusted while the light source of the color viewer is turned on by separating or covering the light of the color viewer so as not to affect the display. Can be done.

As described above, the color viewer of the present invention can improve the work efficiency in adjusting the color of the image data and the image original.

[Brief description of the drawings]

FIG. 1 is a simplified diagram of a color viewer system of the present invention.

FIG. 2 is a front view showing a screen of a color viewer.

FIG. 3 is a simplified drawing of a conventional color viewer.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Computer 2 Color viewer 3 Screen 4 Foot type ON / OFF switch 5 Stopper 6 Film 7 Side ON / OFF switch

Claims (3)

[Claims] 1. A color viewer in which a light source is provided in a box, a film is arranged on a screen, and an optical inspection is performed by switching an ON / OFF switch of the light source. Formula O
A color viewer comprising an N / OFF switch. 2. A color viewer in which a light source is provided in a box, a film is disposed on a screen, and an optical inspection is performed by switching an ON / OFF switch of the light source. A color viewer characterized by having. 3. A color viewer in which a light source is provided in a box, a film is disposed on a screen, and an optical inspection is performed by switching an ON / OFF switch of the light source. 2. The color viewer according to claim 1, further comprising: