JPH0145273B2 - - Google Patents

Info

Publication number
JPH0145273B2
JPH0145273B2 JP57063423A JP6342382A JPH0145273B2 JP H0145273 B2 JPH0145273 B2 JP H0145273B2 JP 57063423 A JP57063423 A JP 57063423A JP 6342382 A JP6342382 A JP 6342382A JP H0145273 B2 JPH0145273 B2 JP H0145273B2
Authority
JP
Japan
Prior art keywords
signal
hue
color separation
circuit
color
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
Application number
JP57063423A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58181045A (ja
Inventor
Tadashi Myagawa
Osamu Shimazaki
Hisashi Kudo
Hideaki Kimura
Hitoshi Urabe
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.)
Fujifilm Holdings Corp
Original Assignee
Fuji Photo Film 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
Application filed by Fuji Photo Film Co Ltd filed Critical Fuji Photo Film Co Ltd
Priority to JP57063423A priority Critical patent/JPS58181045A/ja
Priority to GB08310010A priority patent/GB2119600B/en
Priority to DE3313392A priority patent/DE3313392A1/de
Publication of JPS58181045A publication Critical patent/JPS58181045A/ja
Priority to US06/906,694 priority patent/US4845550A/en
Publication of JPH0145273B2 publication Critical patent/JPH0145273B2/ja
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
    • H04N1/60—Colour correction or control
    • 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
    • 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
    • H04N1/6075—Corrections to the hue
    • 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
    • H04N1/6077—Colour balance, e.g. colour cast correction

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)
JP57063423A 1982-04-14 1982-04-16 色調修正回路 Granted JPS58181045A (ja)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP57063423A JPS58181045A (ja) 1982-04-16 1982-04-16 色調修正回路
GB08310010A GB2119600B (en) 1982-04-14 1983-04-13 Method and apparatus for digital color correction
DE3313392A DE3313392A1 (de) 1982-04-14 1983-04-13 Verfahren und vorrichtung zur digitalen farbkorrektur
US06/906,694 US4845550A (en) 1982-04-14 1986-09-11 Method and apparatus for processing picture image signals

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57063423A JPS58181045A (ja) 1982-04-16 1982-04-16 色調修正回路

Publications (2)

Publication Number Publication Date
JPS58181045A JPS58181045A (ja) 1983-10-22
JPH0145273B2 true JPH0145273B2 (https=) 1989-10-03

Family

ID=13228859

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57063423A Granted JPS58181045A (ja) 1982-04-14 1982-04-16 色調修正回路

Country Status (1)

Country Link
JP (1) JPS58181045A (https=)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6135678A (ja) * 1984-07-28 1986-02-20 Dainippon Printing Co Ltd 色修正方法
US4789892A (en) * 1985-12-23 1988-12-06 Fuji Xerox Co., Ltd. Color adjusting device including matrix-masking circuitry
JP4552759B2 (ja) 2005-05-27 2010-09-29 日立工機株式会社 卓上切断機

Also Published As

Publication number Publication date
JPS58181045A (ja) 1983-10-22

Similar Documents

Publication Publication Date Title
JP2677283B2 (ja) カラー画像処理装置
US5331442A (en) Identification of graphic and character areas in color image processor
US5068746A (en) Image processing apparatus
EP0327107A2 (en) Method and processor for enhancing image sharpness for image reproduction with scanner
JP3253125B2 (ja) カラー画像読取り補正装置
JPS63304773A (ja) デジタルカラ−信号処理回路
EP0506380B1 (en) Image processing apparatus
EP0162500B1 (en) A method of and apparatus for generating colour matte signals
JPH0145273B2 (https=)
JP2002077647A (ja) 画像処理装置
JP3245600B2 (ja) 画像処理装置
JPS63169174A (ja) 画像処理方法
JP2954230B2 (ja) 画像処理装置
JP2558915B2 (ja) 黒判定装置及び領域識別装置
JP3190527B2 (ja) カラー画像処理装置
JPH1042313A (ja) 信号処理システムおよびイメージ処理装置、ならびに信号を変換するための回路
JP2000357237A (ja) 画像処理装置およびこれを搭載した画像読取装置と画像形成装置、並びに画像処理方法、および画像処理手順を記憶したコンピュータ読み取り可能な記憶媒体
JP3732315B2 (ja) 画像処理装置
JP3105689B2 (ja) 画像処理装置及び方法
JP3291015B2 (ja) 画像処理装置
JP3048171B2 (ja) カラー画像処理装置
JP2999786B2 (ja) カラー画像処理方法
JP2994665B2 (ja) 画像処理方法
JPS63288567A (ja) 画像処理装置
JP2618893B2 (ja) カラー画像処理装置