ES8106968A1 - Metodo para determinar automaticamente condiciones de con- trol de color,para un cuadro de reproduccion - Google Patents
Metodo para determinar automaticamente condiciones de con- trol de color,para un cuadro de reproduccionInfo
- Publication number
- ES8106968A1 ES8106968A1 ES497568A ES497568A ES8106968A1 ES 8106968 A1 ES8106968 A1 ES 8106968A1 ES 497568 A ES497568 A ES 497568A ES 497568 A ES497568 A ES 497568A ES 8106968 A1 ES8106968 A1 ES 8106968A1
- Authority
- ES
- Spain
- Prior art keywords
- color
- control conditions
- automatically determining
- color control
- picture
- 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
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
-
- 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
- H04N1/40—Picture signal circuits
- H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
- H04N1/4072—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original
- H04N1/4074—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original using histograms
-
- 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
- H04N1/6027—Correction or control of colour gradation or colour contrast
Abstract
PROCEDIMIENTO PARA DETERMINAR AUTOMATICAMENTE CONDICIONES DE CONTROL DE COLOR EN LA REPRODUCCION DE PINTURAS DE CUADROS A PARTIR DE LAS PINTURAS ORIGINALES DE DICHOS CUADROS. SE EXPLORA TODA LA SUPERFICIE DE UN CUADRO ORIGINAL, OBTENIENDOSE TRES SEÑALES DE SEPARACION DE COLOR, LAS CUALES CONTIENEN LOS COLORES ROJO, VERDE Y AZUL; SE CALCULA EL AREA DE LA PARTE QUE TIENE CIERTA DENSIDAD Y PUEDE SER UN PUNTO DE LUMINOSIDAD O UN PUNTO DE SOBRA, Y SE DETERMINA DICHO PUNTO CUANDO EL AREA DE LA PARTE DEL CUADRO ES MAS GRANDE QUE UN VALOR PREDETERMINADO. SI TALES PUNTOS EXISTEN EN EL MISMO CUADRO ORIGINAL, UN PUNTO CUYO COLOR ESTE MAS CERCA DEL GRIS ES SELECCIONADO COMO PUNTO DE LUMINOSIDAD O DE SOMBRA; SE LLEVA A CABO UNA CORRECCION DE DEGRADACION EN EL QUE EL INTERVALO DE DENSIDAD DEL CUADRO ORIGINAL SE DIVIDE EN TRES INTERVALOS DE DENSIDAD (A1, A2, A3); CUANDO LAS DENSIDADES (D) DE LOS ELEMENTOS DE CUADRO DE MUESTREO SE ENCUENTRAN EN LOS INTERVALOS DE DENSIDAD, UN REGISTRO CORRESPONDIENTE A CADAUNO DE LOS INTERVALOS CUENTA CONSECUTIVAMENTE DESDE CERO, CON LO QUE SE OBTIENE UN DIAGRAMA DE DISTRIBUICION DE FRECUENCIAS DE DENSIDAD.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP16380579A JPS5687044A (en) | 1979-12-17 | 1979-12-17 | Method of determining adjusting items in image scanning recorder |
Publications (2)
Publication Number | Publication Date |
---|---|
ES8106968A1 true ES8106968A1 (es) | 1981-09-16 |
ES497568A0 ES497568A0 (es) | 1981-09-16 |
Family
ID=15781033
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES497568A Granted ES497568A0 (es) | 1979-12-17 | 1980-12-10 | Metodo para determinar automaticamente condiciones de con- trol de color,para un cuadro de reproduccion |
Country Status (8)
Country | Link |
---|---|
US (1) | US4410909A (es) |
JP (1) | JPS5687044A (es) |
DE (1) | DE3047633C2 (es) |
DK (1) | DK154989C (es) |
ES (1) | ES497568A0 (es) |
FR (1) | FR2472212B1 (es) |
GB (1) | GB2067043B (es) |
IT (1) | IT1193569B (es) |
Families Citing this family (72)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4472736A (en) * | 1980-03-11 | 1984-09-18 | Dainippon Ink And Chemicals Incorporated | Lithographic reproduction original classification and color separation tone curve adjustment |
JPS57197191A (en) * | 1981-05-30 | 1982-12-03 | Fuji Photo Film Co Ltd | Ink jet color print system |
JPS5863989A (ja) * | 1981-10-13 | 1983-04-16 | 大日本スクリ−ン製造株式会社 | デジタル画像処理装置における出力デ−タの階調補正方法 |
JPS5868040A (ja) * | 1981-10-19 | 1983-04-22 | Konan Camera Kenkyusho:Kk | 階調修正量測定装置 |
DE3372236D1 (en) * | 1982-03-11 | 1987-07-30 | Crosfield Electronics Ltd | A video retouching system |
GB2119600B (en) * | 1982-04-14 | 1986-04-23 | Fuji Photo Film Co Ltd | Method and apparatus for digital color correction |
ATE17407T1 (de) * | 1982-06-04 | 1986-01-15 | Hell Rudolf Dr Ing Gmbh | Verfahren und einrichtung zur herstellung farbiger proofs beim mehrfarbendruck. |
JPS59108453A (ja) * | 1982-12-14 | 1984-06-22 | Dainippon Screen Mfg Co Ltd | 画像デ−タの処理方法 |
JPS59161981A (ja) * | 1983-03-06 | 1984-09-12 | Canon Inc | 画像処理装置 |
DE3408107C2 (de) * | 1983-03-06 | 1996-05-30 | Canon Kk | Halbtonfarbbildaufzeichnungsgerät |
DE3408321A1 (de) * | 1983-03-08 | 1984-09-13 | Canon K.K., Tokio/Tokyo | Bildverarbeitungssystem |
US4683492A (en) * | 1983-03-08 | 1987-07-28 | Canon Kabushiki Kaisha | Method and apparatus for recording a full-color image with a plurality of colorants on the basis of a set of area factors for the colorants selected from a plurality of sets of area factors calculated from a plurality of sets of equations |
JPS59163953A (ja) * | 1983-03-08 | 1984-09-17 | Canon Inc | 画像処理装置 |
JPS59205876A (ja) * | 1983-05-10 | 1984-11-21 | Canon Inc | カラー画像処理装置 |
JPS59224861A (ja) * | 1983-06-06 | 1984-12-17 | Canon Inc | カラ−複写機 |
US4734763A (en) * | 1983-07-04 | 1988-03-29 | Fuji Photo Film Co., Ltd. | Apparatus for generating positive or negative image output signals from either positive or negative originals |
JP2501782B2 (ja) * | 1983-09-16 | 1996-05-29 | 株式会社ニコン | 画像走査装置 |
JPS6084084A (ja) * | 1983-10-14 | 1985-05-13 | Canon Inc | 画像信号処理装置 |
US4667228A (en) * | 1983-10-14 | 1987-05-19 | Canon Kabushiki Kaisha | Image signal processing apparatus |
JPS6098764A (ja) * | 1983-11-04 | 1985-06-01 | Canon Inc | カラ−画像形成方法 |
JPS60139080A (ja) * | 1983-12-27 | 1985-07-23 | Canon Inc | 画像処理装置 |
US4727434A (en) * | 1984-03-14 | 1988-02-23 | Canon Kabushiki Kaisha | Image processing apparatus for rapid production of a hard copy of a video image in which input image signal processing parameters are set while a record medium is being positioned at a recording position |
DE3412723A1 (de) * | 1984-04-04 | 1985-10-17 | Fogra Deutsche Forschungsgesellschaft für Druck- und Reproduktionstechnik e.V., 8000 München | Verfahren zur einstellung eines scanners auf eine reproduktionsvorlage |
JPS6120042A (ja) * | 1984-07-06 | 1986-01-28 | Dainippon Screen Mfg Co Ltd | 画像走査記録方法及び装置 |
US4805013A (en) * | 1984-09-05 | 1989-02-14 | Canon Kabushiki Kaisha | Image data conversion system |
US4731662A (en) * | 1985-03-21 | 1988-03-15 | Canon Kabushiki Kaisha | Image processing method for processing an image signal differently depending on the range of an image characteristic thereof relative to the range within which an output device can reproduce the image characteristic |
US4639769A (en) * | 1985-04-01 | 1987-01-27 | Eastman Kodak Company | Modifying color digital images |
US4651199A (en) * | 1985-05-06 | 1987-03-17 | Eastman Kodak Company | Method for detecting blank frames in a photographic color printer |
US4729016A (en) * | 1985-05-06 | 1988-03-01 | Eastman Kodak Company | Digital color image processing method and apparatus employing three color reproduction functions for adjusting both tone scale and color balance |
US4663663A (en) * | 1985-05-06 | 1987-05-05 | Eastman Kodak Company | Digital color image processing method employing constrained correction of color reproduction functions |
US4642684A (en) * | 1985-05-06 | 1987-02-10 | Eastman Kodak Company | Method and apparatus for detecting and printing color photographic images of scenes exposed with narrow band illuminant |
US4654722A (en) * | 1985-05-06 | 1987-03-31 | Eastman Kodak Company | Tone value sample selection in digital image processing method employing histogram normalization |
US4731671A (en) * | 1985-05-06 | 1988-03-15 | Eastman Kodak Company | Contrast adjustment in digital image processing method employing histogram normalization |
US4642683A (en) * | 1985-05-06 | 1987-02-10 | Eastman Kodak Company | Digital image processing method for images with bimodal tone value distribution |
US4636845A (en) * | 1985-05-06 | 1987-01-13 | Eastman Kodak Company | Digital image processing method for over and under exposed photographic images |
JPS627290A (ja) * | 1985-07-04 | 1987-01-14 | Fuji Photo Film Co Ltd | カラ−ネガフイルム撮像における階調補正方法および装置 |
US4879595A (en) * | 1985-10-22 | 1989-11-07 | Konishiroku Photo Industry Co., Ltd. | Technique for reproducing an image read from a color original |
US4677465A (en) * | 1985-11-01 | 1987-06-30 | Eastman Kodak Company | Digital color image processing method with shape correction of histograms used to produce color reproduction functions |
JPS62111570A (ja) * | 1985-11-09 | 1987-05-22 | Fuji Photo Film Co Ltd | 画像入出力システムにおける出力信号処理条件の自動設定方法 |
US4853768A (en) * | 1985-12-26 | 1989-08-01 | Canon Kabushiki Kaisha | Color image processing apparatus with linear masking circuit having coefficients which vary in accordance with the levels of color component signals |
JPH0795812B2 (ja) * | 1986-01-14 | 1995-10-11 | 凸版印刷株式会社 | 色分解シミユレ−シヨン装置 |
US4745465A (en) * | 1986-03-24 | 1988-05-17 | Eastman Kodak Company | Digital color image processing method employing histogram normalization for tone and color reproduction |
US4760606A (en) * | 1986-06-30 | 1988-07-26 | Wang Laboratories, Inc. | Digital imaging file processing system |
DE3629793C2 (de) * | 1986-09-02 | 1994-11-24 | Agfa Gevaert Ag | Verfahren zum punkt- und zeilenweisen Kopieren einer mehrfarbigen Kopiervorlage und Vorrichtung zur Durchführung dieses Verfahrens |
EP0258740B1 (en) * | 1986-09-02 | 1995-07-19 | Fuji Photo Film Co., Ltd. | Method of and apparatus for processing an image with gradation correction of video signal |
JPH0724425B2 (ja) * | 1986-09-02 | 1995-03-15 | 富士写真フイルム株式会社 | 画像処理方法及び装置 |
JPH0722311B2 (ja) * | 1986-11-13 | 1995-03-08 | キヤノン株式会社 | カラ−画像読み取り装置 |
JP2556486B2 (ja) * | 1986-11-14 | 1996-11-20 | キヤノン株式会社 | フィルム読取装置 |
US4908701A (en) * | 1987-03-09 | 1990-03-13 | Canon Kabushiki Kaisha | Color image processing method and apparatus for color adjustment during image processing |
JP2621864B2 (ja) * | 1987-04-01 | 1997-06-18 | 株式会社リコー | デジタルカラー複写機 |
JPH0620222B2 (ja) * | 1987-07-30 | 1994-03-16 | 大日本スクリ−ン製造株式会社 | 画像走査読取り装置の受光部の感度基準設定方法 |
GB8800503D0 (en) * | 1988-01-11 | 1988-02-10 | Crosfield Electronics Ltd | Apparatus for generating two-dimensional coloured display |
JPH01236869A (ja) * | 1988-03-17 | 1989-09-21 | Fuji Photo Film Co Ltd | カラースキャナの画像処理方法 |
EP0352491B1 (en) * | 1988-06-30 | 1996-08-14 | Dainippon Screen Mfg. Co., Ltd. | Method of generating gradation correction curve for correcting gradation character of image |
JP2575843B2 (ja) * | 1988-10-13 | 1997-01-29 | 富士写真フイルム株式会社 | 画像入出力システム及び信号処理条件の自動設定方法 |
DE3938522C2 (de) * | 1989-11-21 | 1998-09-24 | Philips Broadcast Television S | System zum Fokussieren eines Fernsehkamera-Objektivs |
US5130789A (en) * | 1989-12-13 | 1992-07-14 | Eastman Kodak Company | Localized image recoloring using ellipsoid boundary function |
JPH03201772A (ja) * | 1989-12-28 | 1991-09-03 | Konica Corp | イメージスキャナ |
US5177602A (en) * | 1989-12-28 | 1993-01-05 | Konica Corporation | Image scanners |
DE4002298C2 (de) * | 1990-01-26 | 1995-11-09 | Agfa Gevaert Ag | Verfahren und Vorrichtung zur automatischen Korrektur von Farbstichen bei der elektronischen Bildverarbeitung |
US5224178A (en) * | 1990-09-14 | 1993-06-29 | Eastman Kodak Company | Extending dynamic range of stored image database |
US5544258A (en) * | 1991-03-14 | 1996-08-06 | Levien; Raphael L. | Automatic tone correction of images using non-linear histogram processing |
US5333065A (en) * | 1991-12-09 | 1994-07-26 | Agfa-Gevaert | Signal to density mapping with controlled contrast |
DE4309879C2 (de) * | 1992-04-06 | 1994-08-04 | Hell Ag Linotype | Verfahren und Einrichtung zur Analyse des Bildumfangs von Bildvorlagen |
DE4309877C2 (de) * | 1992-04-06 | 1994-09-15 | Hell Ag Linotype | Verfahren und Einrichtung zur Analyse von Farbstichen in Farbvorlagen |
JP3083207B2 (ja) * | 1992-07-13 | 2000-09-04 | 京セラミタ株式会社 | 画像形成装置 |
JP2606538B2 (ja) * | 1992-12-11 | 1997-05-07 | 株式会社ニコン | 画像読み取り装置 |
JP3111418B2 (ja) * | 1993-12-03 | 2000-11-20 | 京セラミタ株式会社 | 画像形成装置 |
US5812286A (en) * | 1995-08-30 | 1998-09-22 | Hewlett-Packard Company | Automatic color processing to correct hue shift and incorrect exposure |
KR100404857B1 (ko) * | 1996-12-31 | 2004-02-14 | 엘지전자 주식회사 | 유전알고리즘을이용한칼라영상입출력장치에서의색보정용색샘플결정방법 |
JP3668014B2 (ja) | 1998-03-09 | 2005-07-06 | 富士写真フイルム株式会社 | 画像処理方法及び装置 |
US7006668B2 (en) | 1999-12-28 | 2006-02-28 | Canon Kabushiki Kaisha | Image processing method and image processing apparatus |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1921460C2 (de) * | 1969-04-26 | 1970-12-23 | Scheuter Dipl Ing Karl R | Einrichtung zur Messung des Informationsgehaltes eines Bildes sowie der Druckguete einer Reproduktion |
US3893166A (en) * | 1972-01-05 | 1975-07-01 | Crosfield Electronics Ltd | Colour correcting image reproducing methods and apparatus |
US4032969A (en) * | 1973-04-05 | 1977-06-28 | Sadao Ueda | System for reproducing and recording a plurality of color originals |
JPS5438922B2 (es) * | 1975-01-13 | 1979-11-24 | ||
GB1566263A (en) * | 1975-09-22 | 1980-04-30 | Toppan Printing Co Ltd | Measuring optical characteristic |
DE2555293C3 (de) * | 1975-12-09 | 1981-02-12 | Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel | Verfahren und Schaltungsanordnung zum Einstellen des Schwarzpegels |
DE2719387C3 (de) * | 1977-04-30 | 1980-12-04 | Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel | Einrichtung zur Anzeige von Überkorrekturen bei der elektronischen Farbkorrektur |
US4300158A (en) * | 1977-07-18 | 1981-11-10 | Hazeltine Corporation | Process control apparatus |
DE2810430C3 (de) * | 1978-03-10 | 1981-04-30 | 2300 Kiel Dr.-Ing. Rudolf Hell Gmbh | Verfahren und Schaltung zur selektiven Korrektur derFarben eines zu reproduzierenden Bildes |
JPS54134512A (en) * | 1978-04-11 | 1979-10-19 | Ricoh Co Ltd | Picture processing system |
JPS5579448A (en) * | 1978-12-11 | 1980-06-14 | Dainippon Screen Mfg Co Ltd | Color separation simulation system |
-
1979
- 1979-12-17 JP JP16380579A patent/JPS5687044A/ja active Granted
-
1980
- 1980-12-09 GB GB8039417A patent/GB2067043B/en not_active Expired
- 1980-12-10 US US06/214,994 patent/US4410909A/en not_active Expired - Lifetime
- 1980-12-10 ES ES497568A patent/ES497568A0/es active Granted
- 1980-12-12 FR FR8026387A patent/FR2472212B1/fr not_active Expired
- 1980-12-17 IT IT26708/80A patent/IT1193569B/it active
- 1980-12-17 DE DE3047633A patent/DE3047633C2/de not_active Expired
- 1980-12-17 DK DK535880A patent/DK154989C/da active
Also Published As
Publication number | Publication date |
---|---|
IT8026708A0 (it) | 1980-12-17 |
GB2067043B (en) | 1983-10-19 |
ES497568A0 (es) | 1981-09-16 |
JPS5687044A (en) | 1981-07-15 |
DK154989C (da) | 1989-06-05 |
DK154989B (da) | 1989-01-16 |
DK535880A (da) | 1981-06-18 |
US4410909A (en) | 1983-10-18 |
IT1193569B (it) | 1988-07-08 |
FR2472212B1 (fr) | 1988-06-24 |
JPH0322117B2 (es) | 1991-03-26 |
GB2067043A (en) | 1981-07-15 |
FR2472212A1 (fr) | 1981-06-26 |
DE3047633A1 (de) | 1981-10-15 |
DE3047633C2 (de) | 1986-02-06 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 20000201 |