JPH0124470B2 - - Google Patents

Info

Publication number
JPH0124470B2
JPH0124470B2 JP57054894A JP5489482A JPH0124470B2 JP H0124470 B2 JPH0124470 B2 JP H0124470B2 JP 57054894 A JP57054894 A JP 57054894A JP 5489482 A JP5489482 A JP 5489482A JP H0124470 B2 JPH0124470 B2 JP H0124470B2
Authority
JP
Japan
Prior art keywords
signal
black
white
circuit
reference voltage
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
JP57054894A
Other languages
English (en)
Japanese (ja)
Other versions
JPS58172062A (ja
Inventor
Iwao Tanahashi
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.)
NEC Corp
Original Assignee
Nippon Electric 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 Nippon Electric Co Ltd filed Critical Nippon Electric Co Ltd
Priority to JP57054894A priority Critical patent/JPS58172062A/ja
Publication of JPS58172062A publication Critical patent/JPS58172062A/ja
Publication of JPH0124470B2 publication Critical patent/JPH0124470B2/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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Input (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP57054894A 1982-04-02 1982-04-02 画信号修正装置 Granted JPS58172062A (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP57054894A JPS58172062A (ja) 1982-04-02 1982-04-02 画信号修正装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP57054894A JPS58172062A (ja) 1982-04-02 1982-04-02 画信号修正装置

Publications (2)

Publication Number Publication Date
JPS58172062A JPS58172062A (ja) 1983-10-08
JPH0124470B2 true JPH0124470B2 (enrdf_load_stackoverflow) 1989-05-11

Family

ID=12983301

Family Applications (1)

Application Number Title Priority Date Filing Date
JP57054894A Granted JPS58172062A (ja) 1982-04-02 1982-04-02 画信号修正装置

Country Status (1)

Country Link
JP (1) JPS58172062A (enrdf_load_stackoverflow)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6081977A (ja) * 1983-10-12 1985-05-10 Ricoh Co Ltd 画像読取処理装置
JPH0738682B2 (ja) * 1983-10-28 1995-04-26 株式会社日立製作所 画像信号処理プロセツサ

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5553971A (en) * 1978-10-16 1980-04-19 Oki Electric Ind Co Ltd Facsimile graphic input device

Also Published As

Publication number Publication date
JPS58172062A (ja) 1983-10-08

Similar Documents

Publication Publication Date Title
US4926268A (en) Image processing apparatus which converts m-bit image data to n-bit (n>m) image data
JP2532399B2 (ja) 画像処理装置
JPH07106646B2 (ja) 画像処理装置
EP0212990B1 (en) Image processing apparatus
US4736253A (en) Method and apparatus for producing a halftone dot by selectively comparing image signals with highlight and shadow reference values or with halftone dot sub-cell reference values
JPH0124470B2 (enrdf_load_stackoverflow)
JPH0160985B2 (enrdf_load_stackoverflow)
JP2891775B2 (ja) ハーフトーン原画像の網目スクリーン化のためのデジタル化濃度限界値生成及び記憶方法
JPH0244184B2 (enrdf_load_stackoverflow)
JP2723535B2 (ja) 像形成装置
JP3046034B2 (ja) 画像形成装置
JP2555315B2 (ja) 画像処理装置
JPS6250978A (ja) 画像処理装置
JP2915448B2 (ja) イメージセンサの２値化出力方法
JPS61118065A (ja) 画像処理装置
JPS6250979A (ja) 画像処理装置
KR960012550B1 (ko) 화상의 세이딩(Shading)보정 처리장치
JPS6025382A (ja) 画信号修正装置
JPH0244435B2 (enrdf_load_stackoverflow)
JP2584769B2 (ja) デジタル画像デ−タ処理装置
JPS5831148B2 (ja) ビデオ信号処理方式
JPH0117309B2 (enrdf_load_stackoverflow)
JPS62206965A (ja) 画像処理装置
JPS58153458A (ja) 画像階調再現方法
JPH0237154B2 (enrdf_load_stackoverflow)