FR2455307A1 - Procede et appareil pour commander numeriquement les couleurs dans une machine de reproduction d'images - Google Patents

Procede et appareil pour commander numeriquement les couleurs dans une machine de reproduction d'images

Info

Publication number
FR2455307A1
FR2455307A1 FR8009157A FR8009157A FR2455307A1 FR 2455307 A1 FR2455307 A1 FR 2455307A1 FR 8009157 A FR8009157 A FR 8009157A FR 8009157 A FR8009157 A FR 8009157A FR 2455307 A1 FR2455307 A1 FR 2455307A1
Authority
FR
France
Prior art keywords
data
color
component
image reproducing
indexing
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.)
Granted
Application number
FR8009157A
Other languages
English (en)
Other versions
FR2455307B1 (fr
Inventor
Mitsuhiko Yamada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dainippon Screen Manufacturing Co Ltd
Original Assignee
Dainippon Screen Manufacturing Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from JP4907779A external-priority patent/JPS55142342A/ja
Priority claimed from JP54049078A external-priority patent/JPS6052430B2/ja
Priority claimed from JP4907979A external-priority patent/JPS55142344A/ja
Application filed by Dainippon Screen Manufacturing Co Ltd filed Critical Dainippon Screen Manufacturing Co Ltd
Publication of FR2455307A1 publication Critical patent/FR2455307A1/fr
Application granted granted Critical
Publication of FR2455307B1 publication Critical patent/FR2455307B1/fr
Granted legal-status Critical Current

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
    • H04N1/58—Edge or detail enhancement; Noise or error suppression, e.g. colour misregistration correction
    • 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
    • H04N1/6025—Generating a fourth subtractive colour signal, e.g. under colour removal, black masking using look-up tables

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Image Processing (AREA)
  • Closed-Circuit Television Systems (AREA)
  • Color Image Communication Systems (AREA)

Abstract

PROCEDE ET APPAREIL DE COMMANDE NUMERIQUE DES COULEURS, UTILISABLE DANS UNE MACHINE DE REPRODUCTION D'IMAGES. ON PREPARE DES DONNEES RELATIVES AUX COULEURS PRIMAIRES EN DES PREMIERES DONNEES DE COMPOSANTES DE COULEUR ET DE GRIS, EN FONCTION DE LA DONNEE DE VALEUR MAXIMALE, CES PREMIERES DONNEES INDEXANT DES TABLES-MEMOIRES POUR EN EXTRAIRE LES DONNEES PREDETERMINEES DE SEPARATION DE LA COMPOSANTE DE GRIS, QUI Y SONT STOCKEES. ON CORRIGE LES PREMIERES DONNEES EN TRAITANT CES PREMIERES DONNEES ET DES DONNEES PREDETERMINEES DE CORRECTION DES COULEURS QUI SONT EXTRAITES DES TABLES-MEMOIRES EN INDEXANT CES TABLES EN FONCTION DES PREMIERES DONNEES POUR OBTENIR DES DEUXIEMES DONNEES. ON AJOUTE LES DONNEES DE SEPARATION DE LA COMPOSANTE DE GRIS AUX DEUXIEMES DONNEES DE COMPOSANTES DE COULEUR, OBTENANT AINSI DES DONNEES DE REPRODUCTION DE SEPARATION DES COULEURS COMMANDEES DU POINT DE VUE DES COULEURS.
FR8009157A 1979-04-23 1980-04-23 Procede et appareil pour commander numeriquement les couleurs dans une machine de reproduction d'images Granted FR2455307A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP4907779A JPS55142342A (en) 1979-04-23 1979-04-23 Digital color tone control method
JP54049078A JPS6052430B2 (ja) 1979-04-23 1979-04-23 デイジタル色調制御における無彩色制御装置
JP4907979A JPS55142344A (en) 1979-04-23 1979-04-23 Color correcting device in digital color tone control

Publications (2)

Publication Number Publication Date
FR2455307A1 true FR2455307A1 (fr) 1980-11-21
FR2455307B1 FR2455307B1 (fr) 1983-11-04

Family

ID=27293512

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8009157A Granted FR2455307A1 (fr) 1979-04-23 1980-04-23 Procede et appareil pour commander numeriquement les couleurs dans une machine de reproduction d'images

Country Status (5)

Country Link
US (1) US4335398A (fr)
DE (1) DE3015396A1 (fr)
FR (1) FR2455307A1 (fr)
GB (1) GB2050106B (fr)
IL (1) IL59886A (fr)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512974A1 (fr) * 1981-09-16 1983-03-18 Dainippon Screen Mfg Procede pour modifier les couleurs d'une image, affichee sur un affichage en couleur, pour reproduire un document imprime en couleur
FR2539521A1 (fr) * 1983-01-17 1984-07-20 Dainippon Screen Mfg Systeme de separation des couleurs
EP0205712A2 (fr) * 1985-05-31 1986-12-30 Schlumberger Technologies, Inc. Système de traitement de courant vidéo
EP0251739A2 (fr) * 1986-06-30 1988-01-07 Xerox Corporation Appareil à copier en couleurs
US4724477A (en) * 1984-08-17 1988-02-09 Crosfield Electronics (Usa) Limited Image enhancement with color corrector in parallel with fringe signal generators
EP0290887A2 (fr) * 1987-05-09 1988-11-17 Sharp Kabushiki Kaisha Procédé de conversion de couleurs
EP0450867A2 (fr) * 1990-04-02 1991-10-09 Kabushiki Kaisha Toshiba Appareil de compensation de teinte pour une machine pour copier en couleurs sur papier
EP0475554A2 (fr) * 1990-02-05 1992-03-18 Scitex Corporation Ltd. Appareil et procédé de calibrage de couleurs
EP0569206A2 (fr) * 1992-05-04 1993-11-10 Hewlett-Packard Company Appareil de formation d'images en couleurs utilisant un modèle de couleur teinte-et-gris
EP0586139A2 (fr) * 1992-08-30 1994-03-09 Scitex Corporation Ltd. Appareil et procédé d'impression à plus de cinq couleurs
EP0600657A2 (fr) * 1992-11-30 1994-06-08 Xerox Corporation Procédé et appareil pour améliorer des images à pleine couleur utilisant le noir de procédé et le noir d'imprimante

Families Citing this family (44)

* Cited by examiner, † Cited by third party
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
EP0059705B1 (fr) * 1980-09-10 1984-11-14 DR.-ING. RUDOLF HELL GmbH Procede et circuit pour la correction partielle du dessin lors de la reproduction d'images en couleur
US4458265A (en) * 1980-12-17 1984-07-03 Matsushita Research Institute Tokyo, Inc. Color image duplicating system
DE3109190C2 (de) * 1981-03-11 1985-07-11 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren zur Reproduktion farbiger Vorlagen im Vierfarbendruck unter Farbrücknahme
FR2507037B1 (fr) * 1981-06-01 1989-06-09 Canon Kk Appareil de lecture d'images en couleurs
JPS57208422A (en) * 1981-06-18 1982-12-21 Fuji Photo Film Co Ltd Hue judging device
US4617592A (en) * 1982-03-11 1986-10-14 Crosfield Electronics Limited Video retouching system
DE3313392A1 (de) * 1982-04-14 1983-10-20 Fuji Photo Film Co., Ltd., Minami Ashigara, Kanagawa Verfahren und vorrichtung zur digitalen farbkorrektur
US4500919A (en) * 1982-05-04 1985-02-19 Massachusetts Institute Of Technology Color reproduction system
JPS59161976A (ja) * 1983-03-05 1984-09-12 Canon Inc カラ−画像処理装置
US4745466A (en) * 1983-03-06 1988-05-17 Canon Kabushiki Kaisha Digital color image processing apparatus with color masking processing unit addressed by a plurality of multi-bit color component signals using various combinations of the bits of the signals
DE3484661D1 (de) * 1983-03-08 1991-07-11 Canon Kk Bildverarbeitungsgeraet.
GB2154094B (en) * 1983-12-30 1988-10-12 Dainippon Screen Mfg A multi-colour printing process
US4622582A (en) * 1984-01-09 1986-11-11 Dainippon Screen Seizo Kabushiki Kaisha Asynchronous color image processing system with a plurality of picture input units and a plurality of picture reproducing units selected in accordance with a predetermined order of preference
US4817180A (en) * 1984-11-10 1989-03-28 Dainippon Screen Mfg. Co., Ltd. Image signal filtering
US4817175A (en) * 1986-08-26 1989-03-28 Schlumberger Systems And Services, Inc. Video stream processing system
DE3808818A1 (de) * 1987-03-16 1988-09-29 Mitsubishi Electric Corp Vorrichtung zur farbumsetzung
JPS6485475A (en) * 1987-09-28 1989-03-30 Dainippon Screen Mfg Parallel display device for plural pictures in color scanner monitor
US4989079A (en) * 1987-10-23 1991-01-29 Ricoh Company, Ltd. Color correction device and method having a hue area judgement unit
US4839722A (en) * 1987-10-30 1989-06-13 Colorocs Corporation Method and apparatus for providing improved color correction in a subtrative color printing system
US4884130A (en) * 1988-04-29 1989-11-28 Minnesota Mining And Manufacturing Company Method of describing a color in a triaxial planar vector color space
US5018085A (en) * 1988-06-16 1991-05-21 Hallmark Cards, Inc. Color printing system usable for reproduction of computer-generated images
JPH02118680A (ja) * 1988-10-28 1990-05-02 Fuji Xerox Co Ltd 画像形成装置の下色除去方式
US5036472A (en) 1988-12-08 1991-07-30 Hallmark Cards, Inc. Computer controlled machine for vending personalized products or the like
US5561604A (en) 1988-12-08 1996-10-01 Hallmark Cards, Incorporated Computer controlled system for vending personalized products
GB8904535D0 (en) 1989-02-28 1989-04-12 Barcrest Ltd Automatic picture taking machine
JPH07119128B2 (ja) * 1989-05-08 1995-12-20 三菱電機株式会社 色信号補正回路
IL95424A0 (en) * 1990-02-09 1991-06-30 Hallmark Cards Color printing system usable for reproduction of computer-generated images
US5196927A (en) * 1990-03-16 1993-03-23 E. I. Du Pont De Nemours And Company Method for electronic color processing
GB9020079D0 (en) * 1990-09-14 1990-10-24 Crosfield Electronics Ltd Image enhancement
US5559714A (en) 1990-10-22 1996-09-24 Hallmark Cards, Incorporated Method and apparatus for display sequencing personalized social occasion products
US5546316A (en) 1990-10-22 1996-08-13 Hallmark Cards, Incorporated Computer controlled system for vending personalized products
US5799111A (en) * 1991-06-14 1998-08-25 D.V.P. Technologies, Ltd. Apparatus and methods for smoothing images
US5261038A (en) * 1991-09-20 1993-11-09 Hewlett-Packard Company Pen qualification and verification in a graphics plotter
US5493321A (en) * 1993-02-25 1996-02-20 Minnesota Mining And Manufacturing Company Method and apparatus of characterization for photoelectric color proofing systems
US6057931A (en) * 1993-07-12 2000-05-02 Mci Telecommunications Corporation Method and apparatus for controlling color image reproduction
US5530793A (en) * 1993-09-24 1996-06-25 Eastman Kodak Company System for custom imprinting a variety of articles with images obtained from a variety of different sources
US5726898A (en) 1994-09-01 1998-03-10 American Greetings Corporation Method and apparatus for storing and selectively retrieving and delivering product data based on embedded expert judgements
US5768142A (en) 1995-05-31 1998-06-16 American Greetings Corporation Method and apparatus for storing and selectively retrieving product data based on embedded expert suitability ratings
US5875110A (en) 1995-06-07 1999-02-23 American Greetings Corporation Method and system for vending products
JP4088300B2 (ja) * 2005-06-01 2008-05-21 富士通株式会社 画像領域検出装置、画像領域検出方法および画像領域検出プログラム
US9734129B2 (en) * 2014-04-22 2017-08-15 Sandisk Technologies Llc Low complexity partial parallel architectures for Fourier transform and inverse Fourier transform over subfields of a finite field
US9444493B2 (en) 2014-06-26 2016-09-13 Sandisk Technologies Llc Encoder with transform architecture for LDPC codes over subfields using message mapping
US9432055B2 (en) 2014-06-26 2016-08-30 Sandisk Technologies Llc Encoder for quasi-cyclic low-density parity-check codes over subfields using fourier transform

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981792A (en) * 1957-10-31 1961-04-25 Fairchild Camera Instr Co Color correction computer for engraving machines
US3136845A (en) * 1961-04-13 1964-06-09 Fairchild Camera Instr Co Apparatus for correction of half-tone color images
US3885244A (en) * 1970-12-17 1975-05-20 Hell Rudolf Dr Ing Method of producing color correction signals and color separation signals

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1053311B (de) * 1958-02-11 1959-03-19 Hell Rudolf Dr Ing Fa Verfahren und Vorrichtung zur elektronischen Farbkorrektur
US3612753A (en) * 1969-04-23 1971-10-12 Ventures Res & Dev Self-adaptive system for the reproduction of color
US3893166A (en) * 1972-01-05 1975-07-01 Crosfield Electronics Ltd Colour correcting image reproducing methods and apparatus
DE2526409C3 (de) * 1975-06-13 1979-08-09 Dr.-Ing. Rudolf Hell Gmbh, 2300 Kiel Verfahren zur Eichung einer eine fotomechanische Druckform erzeugenden Aufzeichnungseinheit
JPS5224701A (en) * 1975-08-20 1977-02-24 Dainippon Screen Mfg Method of correcting color of image signal

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2981792A (en) * 1957-10-31 1961-04-25 Fairchild Camera Instr Co Color correction computer for engraving machines
US3136845A (en) * 1961-04-13 1964-06-09 Fairchild Camera Instr Co Apparatus for correction of half-tone color images
US3885244A (en) * 1970-12-17 1975-05-20 Hell Rudolf Dr Ing Method of producing color correction signals and color separation signals

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2512974A1 (fr) * 1981-09-16 1983-03-18 Dainippon Screen Mfg Procede pour modifier les couleurs d'une image, affichee sur un affichage en couleur, pour reproduire un document imprime en couleur
FR2539521A1 (fr) * 1983-01-17 1984-07-20 Dainippon Screen Mfg Systeme de separation des couleurs
US4724477A (en) * 1984-08-17 1988-02-09 Crosfield Electronics (Usa) Limited Image enhancement with color corrector in parallel with fringe signal generators
EP0205712A2 (fr) * 1985-05-31 1986-12-30 Schlumberger Technologies, Inc. Système de traitement de courant vidéo
EP0205712A3 (fr) * 1985-05-31 1987-04-15 Schlumberger Technologies, Inc. Système de traitement de courant vidéo
EP0251739A2 (fr) * 1986-06-30 1988-01-07 Xerox Corporation Appareil à copier en couleurs
EP0251739A3 (en) * 1986-06-30 1989-08-30 Xerox Corporation Colour copiers
EP0290887A2 (fr) * 1987-05-09 1988-11-17 Sharp Kabushiki Kaisha Procédé de conversion de couleurs
EP0290887A3 (fr) * 1987-05-09 1991-03-20 Sharp Kabushiki Kaisha Procédé de conversion de couleurs
EP0475554A2 (fr) * 1990-02-05 1992-03-18 Scitex Corporation Ltd. Appareil et procédé de calibrage de couleurs
EP0475554A3 (en) * 1990-02-05 1993-06-23 Scitex Corporation Ltd. Apparatus and method for colour calibration
EP0450867A2 (fr) * 1990-04-02 1991-10-09 Kabushiki Kaisha Toshiba Appareil de compensation de teinte pour une machine pour copier en couleurs sur papier
EP0450867A3 (en) * 1990-04-02 1992-06-17 Kabushiki Kaisha Toshiba Hue compensation apparatus for a color hard copy machine
US5313290A (en) * 1990-04-02 1994-05-17 Kabushiki Kaisha Toshiba Hue compensation apparatus for a color hard copy machine
EP0569206A2 (fr) * 1992-05-04 1993-11-10 Hewlett-Packard Company Appareil de formation d'images en couleurs utilisant un modèle de couleur teinte-et-gris
EP0569206A3 (fr) * 1992-05-04 1994-03-30 Hewlett Packard Co
EP0586139A2 (fr) * 1992-08-30 1994-03-09 Scitex Corporation Ltd. Appareil et procédé d'impression à plus de cinq couleurs
EP0586139A3 (fr) * 1992-08-30 1994-04-20 Scitex Corp Ltd
EP0600657A2 (fr) * 1992-11-30 1994-06-08 Xerox Corporation Procédé et appareil pour améliorer des images à pleine couleur utilisant le noir de procédé et le noir d'imprimante
EP0600657A3 (en) * 1992-11-30 1994-07-20 Xerox Corp Method and apparatus for improving full color images using process black and printer black.

Also Published As

Publication number Publication date
GB2050106A (en) 1980-12-31
IL59886A (en) 1983-06-15
GB2050106B (en) 1983-08-03
FR2455307B1 (fr) 1983-11-04
US4335398A (en) 1982-06-15
IL59886A0 (en) 1980-06-30
DE3015396C2 (fr) 1987-11-26
DE3015396A1 (de) 1980-10-30

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