JPS58178665A - 画像処理装置 - Google Patents

画像処理装置

Info

Publication number
JPS58178665A
JPS58178665A JP57060810A JP6081082A JPS58178665A JP S58178665 A JPS58178665 A JP S58178665A JP 57060810 A JP57060810 A JP 57060810A JP 6081082 A JP6081082 A JP 6081082A JP S58178665 A JPS58178665 A JP S58178665A
Authority
JP
Japan
Prior art keywords
image
picture
signal
processing
memory
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
JP57060810A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0417500B2 (enrdf_load_stackoverflow
Inventor
Naoto Kawamura
尚登 河村
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.)
Canon Inc
Original Assignee
Canon Inc
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 Canon Inc filed Critical Canon Inc
Priority to JP57060810A priority Critical patent/JPS58178665A/ja
Publication of JPS58178665A publication Critical patent/JPS58178665A/ja
Publication of JPH0417500B2 publication Critical patent/JPH0417500B2/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
    • H04N1/40—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Combination Of More Than One Step In Electrophotography (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP57060810A 1982-04-12 1982-04-12 画像処理装置 Granted JPS58178665A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57060810A JPS58178665A (ja) 1982-04-12 1982-04-12 画像処理装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57060810A JPS58178665A (ja) 1982-04-12 1982-04-12 画像処理装置

Publications (2)

Publication Number Publication Date
JPS58178665A true JPS58178665A (ja) 1983-10-19
JPH0417500B2 JPH0417500B2 (enrdf_load_stackoverflow) 1992-03-26

Family

ID=13153070

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57060810A Granted JPS58178665A (ja) 1982-04-12 1982-04-12 画像処理装置

Country Status (1)

Country Link
JP (1) JPS58178665A (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6090466A (ja) * 1983-10-24 1985-05-21 Nippon Kogaku Kk <Nikon> 光電変換装置
JPS61214893A (ja) * 1985-03-21 1986-09-24 Canon Inc カラ−画像処理方法
JPS61288662A (ja) * 1985-06-17 1986-12-18 Canon Inc カラ−画像信号処理方法
JPS62159977A (ja) * 1986-01-08 1987-07-15 Matsushita Graphic Commun Syst Inc 写真電送装置
JPS62193456A (ja) * 1986-02-20 1987-08-25 Toshiba Corp 画像信号処理装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6090466A (ja) * 1983-10-24 1985-05-21 Nippon Kogaku Kk <Nikon> 光電変換装置
JPS61214893A (ja) * 1985-03-21 1986-09-24 Canon Inc カラ−画像処理方法
JPS61288662A (ja) * 1985-06-17 1986-12-18 Canon Inc カラ−画像信号処理方法
JPS62159977A (ja) * 1986-01-08 1987-07-15 Matsushita Graphic Commun Syst Inc 写真電送装置
JPS62193456A (ja) * 1986-02-20 1987-08-25 Toshiba Corp 画像信号処理装置

Also Published As

Publication number Publication date
JPH0417500B2 (enrdf_load_stackoverflow) 1992-03-26

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