JPS6014246A - Photoengraving system for video image - Google Patents

Abstract

PURPOSE:To enable formation of a sheet of color film or a separating plate for printing by synthesizing the movements of video images for several frames by using several sets of mask information. CONSTITUTION:If mask processing is necessary, mask information AP or inverted mask information APA' is taken out of a memory 33 by a command signal CT3 from a console 10 and is fed to a gate 36. Image information RGB1 is fed as the image information RGB2 of only the inside or outside of a contour LP to an interpolating part 16 for scanning lines where the information is subjected processing and a color film or a separating plate for printing is obtd. Therefore if the mask information APA and APA' are respectively used for image information, the inside of the contour is obtd. by one image formation and the outside by another image information. A sheet of color film or color separating film for printing is then obtd.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a video image plate-making system that can synthesize several video images provided by a VTR, VIIR, etc. to obtain a color film for printing or a color separation plate for printing.

FIG. 1 is a block diagram showing a schematic configuration of a conventional video image prepress system (VTR (video tape recorder), VDRC video disk recorder).

Either a video signal from a telecine device, a TV receiver, or a TV camera is input into the input editing section 11 and sent to the operation console 10.
The video signal, which has been appropriately edited by the command signal CTI from the control unit 12, is improved in image quality by suppressing various noises and enhancing the image outline in the first part 12. Next, the video signal is converted into an RGB signal by the RGB decoder 13, and the ROB signals before and after correction are sent to the monitor 2 via the screen composition unit 19.
While being monitored at 0, the gradation correction unit 14 performs parallel movement of the contrast correction IF1 gradation, correction of the gradation of the light part or the shadow part, etc. The corrected RGB signals are stored in the frame memory 15 as corrected still 1F image information. This RGB still image information is extracted as needed by the command signal CT2 of the operator console 10, and the scanning line interpolation section 16 performs interpolation between scanning lines according to a predetermined calculation formula to produce high-density RGB still image information in color. Is it sent to the film making device 17 to obtain a color film?
Alternatively, it is sent to the layout system 18 to obtain color separations for printing.

In video image prepress systems such as those described above, when attempting to capture the motion of several frames of a video image onto a single sheet of color filtration or color separation plate for printing, the video image must be duplicated or duplicated. This method had the disadvantage that the gradation of the image was halved and a good result could not be obtained since the second copy had to be made. SUMMARY OF THE INVENTION Therefore, it is an object of the present invention to provide a video image prepress system that does not have the above-mentioned drawbacks.

This invention will be explained below.

FIG. 2 is a diagram showing an embodiment of the present invention corresponding to FIG. 1, in which a mask processing section 30 is provided between the frame memory 15 and the scanning line interpolation section 16. FIG. 3 is a block diagram showing the configuration of the mask processing unit 30, which receives signals qt and p from the light ben 31 and generates mask information APA and contour information l APB. A cedar interface 32, a memory 33 that stores mask information APA, and a memory 34 that stores contour information APR.
In response to command signal CT3 from operation IjLtO, address pointer 32. A memory controller 35 that controls the memory 33 and the memory 34 masks the l'lGB static and old image information RGBI from the frame memory '15 using mask information APA to generate RGB static and old image information RG.
It consists of a gate 36 designated as B2.

In such a configuration, any of the video signals from the VTR, V[]R, telecine device, TV receiver, or TV camera is taken into the input editing section 11, and subjected to the above-mentioned series of processing to create a frame memo. 5 as corrected still image information. On the other hand, as shown in FIG.
When instructed by , this contour signal LP is sent to the mask processing section 30 . The address pointer 32 of the mask processing section 30 converts the contour signal LP into mask information PA and contour information APR as shown in FIGS. 5(A) and 5(B). The mask information APA and the contour information APR are stored in the memory 33 and the memory 34, respectively, with the timing controlled by the memory controller 35, and the contour information APR is sent from the memory 34 to the screen composition section 19 and displayed on the monitor 20. It is displayed as a contour LP shown in FIG.

On the other hand, the corrected still image information RGB1 stored in the frame memory 15 is retrieved as needed by the command signal CT2 of the operation unit 10,
is sent to gate 36. If no mask processing is required here, the image information RGBI is sent to the scanning line interpolation unit 1B as image information RGB2 without being transformed,
undergoes the processing described above. In addition, when mask processing is required, the memory 3 is
3, the mask information APA or its inverted mask information APA' (FIG. 5 (C)) is taken out and sent to the gate 36, so that the image information RGIBI is transmitted only inside the outline LP in FIG. It is sent to the scanning line interpolation section 16 as image information RGB2 only for the outside, and subjected to the above-described processing to obtain a color film or a color separation plate for printing. Therefore, for example, if mask information APA and APA' are used for two frames of image information,
It is possible to obtain a color film or color separation plate for printing, with one image information on the inside of the outline and another image information on the outside, as shown in FIG.

As described above, in this invention, by using some mask information, movements over several frames of video images can be synthesized into one image.
A sheet of color film or color separations for printing can be obtained.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing a schematic configuration of an embodiment of a conventional plate making system, FIG. 2 is a block diagram showing a schematic configuration of an embodiment of the present invention, and FIG. 3 is a block diagram showing a configuration of a mask processing section. FIG. 4 is a diagram showing an example of a contour on a monitor, and FIGS. 5(A) to (C) are diagrams showing contour information of mask information 9. 10...Operation console, 11...Input editing section, 12...
Image quality improvement section, 13... RGB decoder, 14... Gradation correction section, 15... Frame memory, 16... Scanning line interpolation section, 17... Color film creation device, 18.
...Layout system, 30...Mask processing section, 3
1... Rai I pen, 32... Address pointer,
33...Memory, 34...Memory, 35...Memory controller, 36...Gate. Applicant's agent Yuzo Yasugata

Claims (1)

[Claims] VTR, VDR, cine equipment, TV receiver, TV
an input editing section 11 that imports and edits any of the video signals from the camera, corrects the time lag between each scanning line of the video signal, suppresses various noises, and improves the image quality;
Image quality improvement unit that emphasizes image outlines and RG video signal
An RGB decoder that converts to a B signal, a gradation correction section that performs contrast correction, parallel movement of 9 gradations, adjustment of the gradation of light or shadow areas, etc., and RGB still image information after correction by this gradation correction section. a frame memory that stores
Performs interpolation between scanning lines according to a predetermined calculation formula to obtain high density R
a scanning line interpolation unit that obtains GB still image information; and the RGEI
In a video image prepress system comprising a screen composition unit and a monitor that display still image information, and a color film production device that produces a color film from the high-density RGB still image information or a layout system that produces color separation plates for printing. , a light pen for inputting a contour signal of an image displayed on the monitor, I-, an address pointer for converting the contour signal into contour information and mask information, and a memory for storing the contour information and the mask information; A video image plate making device characterized in that a mask processing unit is added, which includes a memory controller that controls this mechanism and the address pointer, and a gate that receives the mask information and performs mask processing on the RGB still image information. system.