JPH0137070B2 - - Google Patents
Info
- Publication number
- JPH0137070B2 JPH0137070B2 JP58249543A JP24954383A JPH0137070B2 JP H0137070 B2 JPH0137070 B2 JP H0137070B2 JP 58249543 A JP58249543 A JP 58249543A JP 24954383 A JP24954383 A JP 24954383A JP H0137070 B2 JPH0137070 B2 JP H0137070B2
- Authority
- JP
- Japan
- Prior art keywords
- color
- ink
- density
- black
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 239000000976 ink Substances 0.000 claims description 138
- 238000012937 correction Methods 0.000 claims description 66
- 238000000034 method Methods 0.000 claims description 28
- 239000003086 colorant Substances 0.000 claims description 23
- 230000007935 neutral effect Effects 0.000 claims description 17
- 238000004042 decolorization Methods 0.000 claims description 5
- 230000000873 masking effect Effects 0.000 description 11
- 238000000926 separation method Methods 0.000 description 10
- 238000010586 diagram Methods 0.000 description 9
- 238000004364 calculation method Methods 0.000 description 8
- 230000000295 complement effect Effects 0.000 description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 3
- 230000007812 deficiency Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N1/00—Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
- H04N1/46—Colour picture communication systems
- H04N1/56—Processing of colour picture signals
- H04N1/60—Colour correction or control
- H04N1/6016—Conversion to subtractive colour signals
- H04N1/6022—Generating a fourth subtractive colour signal, e.g. under colour removal, black masking
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Color Image Communication Systems (AREA)
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58249543A JPS60143343A (ja) | 1983-12-30 | 1983-12-30 | 色修正方法 |
GB08432008A GB2154094B (en) | 1983-12-30 | 1984-12-19 | A multi-colour printing process |
US06/684,719 US4656505A (en) | 1983-12-30 | 1984-12-21 | Method for color correction for multi-color printing plate pictures |
DE19843447682 DE3447682A1 (de) | 1983-12-30 | 1984-12-28 | Verfahren zur farbkorrektur |
GB08716302A GB2191905B (en) | 1983-12-30 | 1987-07-10 | A method for colour correction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP58249543A JPS60143343A (ja) | 1983-12-30 | 1983-12-30 | 色修正方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS60143343A JPS60143343A (ja) | 1985-07-29 |
JPH0137070B2 true JPH0137070B2 (enrdf_load_stackoverflow) | 1989-08-03 |
Family
ID=17194549
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP58249543A Granted JPS60143343A (ja) | 1983-12-30 | 1983-12-30 | 色修正方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60143343A (enrdf_load_stackoverflow) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6172251A (ja) | 1984-09-18 | 1986-04-14 | Dainippon Screen Mfg Co Ltd | 色分解信号の補正方法 |
JPH0644801B2 (ja) * | 1987-01-21 | 1994-06-08 | 富士ゼロックス株式会社 | 下色除去装置 |
US7048349B2 (en) * | 2004-01-12 | 2006-05-23 | Xerox Corporation | Color printing |
-
1983
- 1983-12-30 JP JP58249543A patent/JPS60143343A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS60143343A (ja) | 1985-07-29 |
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