JPS5872144A - 下色除去方法及び装置 - Google Patents

下色除去方法及び装置

Info

Publication number
JPS5872144A
JPS5872144A JP56171028A JP17102881A JPS5872144A JP S5872144 A JPS5872144 A JP S5872144A JP 56171028 A JP56171028 A JP 56171028A JP 17102881 A JP17102881 A JP 17102881A JP S5872144 A JPS5872144 A JP S5872144A
Authority
JP
Japan
Prior art keywords
signal
amount
black
color
primary 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.)
Granted
Application number
JP56171028A
Other languages
English (en)
Japanese (ja)
Other versions
JPS6347191B2 (enrdf_load_stackoverflow
Inventor
Toshihiro Shimizu
清水　敏弘
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.)
Toppan Inc
Original Assignee
Toppan Printing 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 Toppan Printing Co Ltd filed Critical Toppan Printing Co Ltd
Priority to JP56171028A priority Critical patent/JPS5872144A/ja
Publication of JPS5872144A publication Critical patent/JPS5872144A/ja
Publication of JPS6347191B2 publication Critical patent/JPS6347191B2/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
    • 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)
JP56171028A 1981-10-26 1981-10-26 下色除去方法及び装置 Granted JPS5872144A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56171028A JPS5872144A (ja) 1981-10-26 1981-10-26 下色除去方法及び装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56171028A JPS5872144A (ja) 1981-10-26 1981-10-26 下色除去方法及び装置

Publications (2)

Publication Number Publication Date
JPS5872144A true JPS5872144A (ja) 1983-04-30
JPS6347191B2 JPS6347191B2 (enrdf_load_stackoverflow) 1988-09-20

Family

ID=15915741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56171028A Granted JPS5872144A (ja) 1981-10-26 1981-10-26 下色除去方法及び装置

Country Status (1)

Country Link
JP (1) JPS5872144A (enrdf_load_stackoverflow)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60197070A (ja) * 1983-09-29 1985-10-05 Canon Inc 画像処理装置
JPS6113259A (ja) * 1984-06-29 1986-01-21 Canon Inc カラ−画像処理方法
JPS62211655A (ja) * 1986-03-13 1987-09-17 Toppan Printing Co Ltd 印刷シミユレ−シヨン装置
JPH01214441A (ja) * 1988-02-23 1989-08-28 Canon Inc カラープリンタ

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60197070A (ja) * 1983-09-29 1985-10-05 Canon Inc 画像処理装置
JPS6113259A (ja) * 1984-06-29 1986-01-21 Canon Inc カラ−画像処理方法
JPS62211655A (ja) * 1986-03-13 1987-09-17 Toppan Printing Co Ltd 印刷シミユレ−シヨン装置
JPH01214441A (ja) * 1988-02-23 1989-08-28 Canon Inc カラープリンタ

Also Published As

Publication number Publication date
JPS6347191B2 (enrdf_load_stackoverflow) 1988-09-20

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