JPS63141454A - Rgb color picture plate-making device - Google Patents

Abstract

PURPOSE:To improve layout processing efficiency by applying layout processing to read R, G, B color picture data, converting them into Y, M, C, K print data and using the result as a print plate-making. CONSTITUTION:A color picture input means 2 reads R, G, B color picture data from a color original 12 and supplies the result to a picture processing computer 3. The picture processing computer 3 stores the picture data R1, G1, B1 onto a magnetic disk 4 and inputs them onto a display device 8, on which a color picture is displayed. Then the color picture displayed on the display device 8 is observed to apply correction and design, the corrected data SD6 is inputted to the picture processing computer 3 and stored on a magnetic disk 5. Then the data stored on the magnetic disk 5 is read, a color correction circuit 6 converts it into 4 colors Y, M, C, K and the result is subject to gradation correction and fed to a direct print plate-making device 9.

Description

Detailed Description of the Invention (Technical Field of the Invention) The present invention relates to an RG system that processes image information read from a color document into a layout and outputs it to a scanner or direct printing plate.
The present invention relates to a B color image collection device.

(Technical background of the invention and its problems) Conventionally, in a collection system, the image of a color original (color positive, etc.) is read by a photomultiplier or other image sensor, and the read image data is subjected to color correction, one gradation correction, and ink. Cyan (C) and magenta (M) created by plate generation etc.
, yellow (Y), and black (K) image data are subjected to layout processing by a layout computer to create print data for use in printing plate making.

FIG. 3 shows an example of a block configuration of a conventional plate collection system. In this plate collection system, a color original 12 is attached to a drum 11 of a layout scanner 10, a tram 11 is rotated, and an image sensor (not shown) is attached to the drum 11 of a layout scanner 10. Red (R) due to etc.
, green (G), and blue (B) image data GDI are read, and this image data CDI is manually input to the color correction circuit 13. The color correction circuit 13 corrects the color and generates black Y, M,
C, another modified data SDI is input to the tone correction circuit 14, and the tone correction circuit 14 corrects the tone of the correction data S.
D2 is manually entered into the layout computer 15. The layout computer 15 stores manually corrected data SD2.
The processed data 503 created by performing image processing etc. on
The color-converted image data GD2 is manually input to the display 20, and a color image is displayed on the screen of the display 20. At this point, the operator uses the digitizer 21 etc. to correct the color image, perform cropping processing, etc. while viewing this color image.
Performs blur processing, design, etc. The corrected data SD4 from the digitizer 21 is inputted manually to the layout computer 15, and the layout computer 15 performs image data correction, etc., and the created layout data SD5 is stored in the magnetic disk 16, and is also sent to the interface 17 by the layout computer 15. through exposure means (
(not shown), the photographic paper 19 stuck to the drum 18 is exposed to light by an exposure means, and a printing plate for printing is created. However, in such a collection system, the amount of data used by the layout computer etc. is enormous, and therefore data processing requires a large amount of time, making it difficult to perform rapid layout processing. In addition, the R, G, 11 color expressions displayed on the display and Y, M used in printed matter
, C, and H are poorly matched.

Furthermore, despite the rapidly increasing demand for printing color images from other media based on R, G, and B, such as TV and CG, conventional plate collection devices are unable to uniformly process these layouts. There were some weaknesses.

(Object of the invention) This invention was made under the above circumstances,
The purpose of this invention is to perform layout processing on R, G, and B color image data read by an image input means such as a CCD, and then convert the data into Y, M, and C print data for use in printing plate making. The object of the present invention is to provide an RGB color image collection device that improves the efficiency of layout processing.

(Summary of the Invention) The present invention relates to an RGII color image collection device, which includes an image input means for reading images from a color document used in printing plate making, and a layout process for RGB color image data read by the image input means. a computer, an image processing means for creating cyan, magenta, yellow, and black print data to be used in the printing plate making by performing color correction, nine gradation correction, etc. on the color image information layout-processed by the computer; and this image processing The apparatus is composed of an output means for creating separated printing plates from data processed by the means or means for directly creating printing plates.

(Embodiment of the Invention) In the RGB color image collection device of the present invention, color correction 1 is performed on RGB color image data manually generated from a color original.
Y and M were created on a layout computer with gradation correction, blemish generation, etc.

The processing data of C and H is color converted into RGB image data and displayed on a display etc., while the layout process is performed, while the input RGB color image is displayed on a display etc. After a layout is performed by an image processing computer, color correction, one-tone correction, color generation, etc. are performed, and the data is used as processing data for Y, kl, f;, and so on.

FIG. 1 shows a block configuration of an RGB color image collection device which is an embodiment of the present invention, and this RGB color image collection device 1 is provided with an image input means 2 consisting of a CCD or the like. This image input means 2 uses the color original 1
2 to R, G, B color image data R1, Gl, Bl
is read and input to the image processing computer 3. The image processing computer processes image data R1, G1 . B1 is stored on the magnetic disk 4, and the display 8 is manually operated so that a color image is displayed on the screen of the display 20. An operator or the like uses a digitizer 22 or the like to modify, design, etc. the color image displayed on the display 8, and the output modified data SD8 is manually input to the image processing computer 3, where it is modified into the above-mentioned image data R1, Gl, and Bl. Processed data R2, G2 created by
．． B2 are sequentially stored on the magnetic disk 5. When the image processing by the image processing computer 3 is completed, the image processing computer 3 transfers the processed data R2, G2 .
B2 is read out and inputted to the color correction circuit 6. Color correction circuit 6
Y color converted and field generated by .

M, C, H printing data Y1. M1. CI and Kl are manually input to the gradation correction circuit 7, and the corrected data Y2. M2. C2, 2 is manually input to the direct printing plate device 9 and directly printed.

Also, corrected data Y2. M2. C2 and 82 are manually input to a plate-making scanner (not shown) as scanner output data SD7, and a decomposed plate for printing is created.

FIG. 2 shows another block configuration of the RGB color image collection device 100. This RGB color image collection device 100 is capable of handling other media (TV, etc.) by expanding the input means for inputting to the image processing computer. The interface can be handled. That is, the RGB color image collection device 100 is provided with an image input means 30 consisting of a COD or the like, and this image input means 30 inputs R, G, and B color image data RIO, GI0, 81 from the color original 12.
0 is read and manually entered into the image processing computer 31.

The image processing computer 31 is configured to manually input image data from other media (TV, high-definition, CG, captain image, etc.) based on R, G, and B, and here, CG data and R2O, 8 image data is stored in a floppy disk device 39. Image data MDI and MTI are manually inputted from the magnetic tape 40, respectively. Furthermore,
TV image data is also manually input, but in this case, since the TV image data is analog data, it is converted into digital data and manually input. In the case of TV image data TVI or NTSC system, TV image data TVI is manually input to the YC separation circuit 41, and YC separated data TV2 is separated into R, G, B.
Conversion data TV3, which is manually input to the conversion circuit 42 and subjected to R, G, and B conversion, is input to the γ correction circuit 43. γ correction data TV5 that has been subjected to γ correction by the γ correction circuit 43 <A/
Image data TV[i, which is manually input to the D converter 44 and digitally converted, is input to the image processing computer 31 . Note that when the TV image data TV4 is an R, G, and B signal, if it is directly input to the γ correction circuit 43, it is manually input to the image processing computer 31 as described above. The image processing computer 31 converts the image data MDI and MTI into image data by converting the data format, and also outputs the converted image data, image data TVIi, and color image data RIO.

G10. B10 is converted into image data R20, G20 . B20 is stored on the magnetic disk 32, and at the same time, it is manually input to the display 38, and a color image is displayed on the screen of the display 38. An operator or the like corrects, designs, etc. the color image displayed on the display 38 using a digitizer 37 or the like, and outputs the corrected data 5DIO or inputs it into the image processing computer 31 and converts it into the above-mentioned image data R20.
, G20, and B20, and the created processed data R30, G30°B30 are sequentially stored on the magnetic disk 33. When the image processing by the image processing computer 31 is completed, the image processing computer 31 transfers the processed data R30, G30 . [130 is read out and input to the color correction circuit 34. Printing data YIO, MIO, CIO in Y, M, C, color converted and black generated by the color correction circuit 34.

KIO is manually input to the gradation correction circuit 35, and the gradation correction circuit 3
Corrected data Y20.5 whose gradation was corrected. M20. C20
°K2O is input to the direct printing plate device 36 and directly printed. Also corrected data Y20. M20. C20
゜K2O is manually input to a plate-making scanner (not shown) as scanner output data 5DII, and a separated plate for printing is created.

(Effect of the invention) According to the RGB color image collection device of the present invention, R, G
After applying layout processing to the color image data of ,H,
Since the data is converted into Y, M, C, and H print data and used for printing plate making, the amount of image data is reduced and the layout processing time is significantly shortened. Furthermore, since image information from other media can be handled in the same way as data from COD, etc., layout processing can be unified, and the matching characteristics of color expression can be further improved.

[Brief explanation of the drawing]

FIG. 1 is a block configuration diagram of an RGII color image collection device which is an embodiment of the present invention, FIG. 2 is another block diagram, and FIG. 3 is a diagram showing an example of the block configuration of a conventional collection system. It is. 1.100...RGB color image collection device, 2,30
. . . image input means, 3, 31 . . . image processing computer, 4. 5.32.33...6R Ki Disk, 6
．． 13゜34...Color correction circuit, 7.14.35...
Gradation correction circuit, 8.20.38...Display, 9
．． 36...Direct printing plate mounting, 12...Manuscript, 2
1, 22. 37... Digitizer, 39... Floppy disk device, 40... Magnetic tape, 41...
VC decomposition circuit, 42...R, G, B conversion circuit, 43
i,; Two γ' sleeve positive circuit, 44...A/D converter. Applicant's agent Yuzo Yasugata] 2

Claims (1)

[Claims] An image input means for reading an image from a color original used in printing plate making, a computer for layout processing of RGB color image data read by the image input means,
An image processing means that performs color correction, gradation correction, etc. on the color image information layout-processed by the computer to create cyan, magenta, yellow, and black print data to be used in the printing plate making, and an image processing means that performs processing by the image processing means. 1. An RGB color image collection device comprising an output means for creating a printing separation plate from the generated data or a means for directly creating a printing plate.