JPS57119562A - Binary-coded gradation processing method for analog picture signal - Google Patents

Binary-coded gradation processing method for analog picture signal

Info

Publication number
JPS57119562A
JPS57119562A JP56006062A JP606281A JPS57119562A JP S57119562 A JPS57119562 A JP S57119562A JP 56006062 A JP56006062 A JP 56006062A JP 606281 A JP606281 A JP 606281A JP S57119562 A JPS57119562 A JP S57119562A
Authority
JP
Japan
Prior art keywords
binary
gradation processing
picture signal
processing
analog picture
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
JP56006062A
Other languages
English (en)
Japanese (ja)
Other versions
JPH0456508B2 (enrdf_load_stackoverflow
Inventor
Katsuhiro Watai
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.)
Ricoh Co Ltd
Original Assignee
Ricoh 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 Ricoh Co Ltd filed Critical Ricoh Co Ltd
Priority to JP56006062A priority Critical patent/JPS57119562A/ja
Publication of JPS57119562A publication Critical patent/JPS57119562A/ja
Publication of JPH0456508B2 publication Critical patent/JPH0456508B2/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
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Character Input (AREA)
  • Image Processing (AREA)
JP56006062A 1981-01-19 1981-01-19 Binary-coded gradation processing method for analog picture signal Granted JPS57119562A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56006062A JPS57119562A (en) 1981-01-19 1981-01-19 Binary-coded gradation processing method for analog picture signal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56006062A JPS57119562A (en) 1981-01-19 1981-01-19 Binary-coded gradation processing method for analog picture signal

Publications (2)

Publication Number Publication Date
JPS57119562A true JPS57119562A (en) 1982-07-26
JPH0456508B2 JPH0456508B2 (enrdf_load_stackoverflow) 1992-09-08

Family

ID=11628095

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56006062A Granted JPS57119562A (en) 1981-01-19 1981-01-19 Binary-coded gradation processing method for analog picture signal

Country Status (1)

Country Link
JP (1) JPS57119562A (enrdf_load_stackoverflow)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57160267A (en) * 1981-03-30 1982-10-02 Canon Inc Picture processor
DE3346316A1 (de) * 1982-12-27 1984-07-12 Kabushiki Kaisha Sakata Shokai, Osaka Verfahren und vorrichtung zum erzeugen von rasterbildern
JPS6229370A (ja) * 1985-07-30 1987-02-07 Canon Inc 画像読取装置
JPS6229369A (ja) * 1985-07-30 1987-02-07 Canon Inc 画像二値化回路
JPS62188470A (ja) * 1986-02-13 1987-08-18 Toshiba Corp 画像信号処理装置
JPS62263770A (ja) * 1986-05-09 1987-11-16 Ricoh Co Ltd カラ−記録装置
JPS6423680A (en) * 1987-07-17 1989-01-26 Nippon Seimitsu Kogyo Image input device
JPS6423681A (en) * 1987-07-17 1989-01-26 Nippon Seimitsu Kogyo Image input device
JPH04151974A (ja) * 1990-05-25 1992-05-25 Mitsubishi Electric Corp プリンタ
US20180035009A1 (en) * 2016-07-29 2018-02-01 Funai Electric Co., Ltd. Image processing apparatus and method of generating binarized image

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5580958A (en) * 1978-12-15 1980-06-18 Toshiba Corp Picture signal binary coding system

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5580958A (en) * 1978-12-15 1980-06-18 Toshiba Corp Picture signal binary coding system

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57160267A (en) * 1981-03-30 1982-10-02 Canon Inc Picture processor
DE3346316A1 (de) * 1982-12-27 1984-07-12 Kabushiki Kaisha Sakata Shokai, Osaka Verfahren und vorrichtung zum erzeugen von rasterbildern
US4556918A (en) * 1982-12-27 1985-12-03 Kabushiki Kaisha Sakata Shokai Method and apparatus for generating screened halftone images
JPS6229370A (ja) * 1985-07-30 1987-02-07 Canon Inc 画像読取装置
JPS6229369A (ja) * 1985-07-30 1987-02-07 Canon Inc 画像二値化回路
JPS62188470A (ja) * 1986-02-13 1987-08-18 Toshiba Corp 画像信号処理装置
JPS62263770A (ja) * 1986-05-09 1987-11-16 Ricoh Co Ltd カラ−記録装置
JPS6423680A (en) * 1987-07-17 1989-01-26 Nippon Seimitsu Kogyo Image input device
JPS6423681A (en) * 1987-07-17 1989-01-26 Nippon Seimitsu Kogyo Image input device
JPH04151974A (ja) * 1990-05-25 1992-05-25 Mitsubishi Electric Corp プリンタ
US20180035009A1 (en) * 2016-07-29 2018-02-01 Funai Electric Co., Ltd. Image processing apparatus and method of generating binarized image
US10412264B2 (en) * 2016-07-29 2019-09-10 Funai Electric Co., Ltd. Image processing apparatus and method for generating a binary image with areas having different ratios of change in gradation formed by different dot patterns alternatingly disposed

Also Published As

Publication number Publication date
JPH0456508B2 (enrdf_load_stackoverflow) 1992-09-08

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