JPS5655949A - Preparation of dot image by compaction of information - Google Patents

Preparation of dot image by compaction of information

Info

Publication number
JPS5655949A
JPS5655949A JP13087579A JP13087579A JPS5655949A JP S5655949 A JPS5655949 A JP S5655949A JP 13087579 A JP13087579 A JP 13087579A JP 13087579 A JP13087579 A JP 13087579A JP S5655949 A JPS5655949 A JP S5655949A
Authority
JP
Japan
Prior art keywords
information
image
circuit
image information
compacting
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.)
Pending
Application number
JP13087579A
Other languages
Japanese (ja)
Inventor
Mitsuhiko Yamada
Toshiaki Nakade
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.)
Dainippon Screen Manufacturing Co Ltd
Original Assignee
Dainippon Screen Manufacturing 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 Dainippon Screen Manufacturing Co Ltd filed Critical Dainippon Screen Manufacturing Co Ltd
Priority to JP13087579A priority Critical patent/JPS5655949A/en
Publication of JPS5655949A publication Critical patent/JPS5655949A/en
Pending legal-status Critical Current

Links

Landscapes

  • Facsimile Scanning Arrangements (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

PURPOSE: To reduce capacity of a recorder and image processing time, by extracting an image element corresponding to each dot, and compacting information quantity.
CONSTITUTION: The clock pulse of encoder 10 is applied to timing control 6 to synchronize this with the clock pulse, image information picked up with input device 9 is made digital with A/D converter 7, this value is applied to buffer memory circuit A1 to store it temporarily, and this operation is continued till image information containing n'a lines of principal scanning is stored n'a×n'b pieces of image information corresponding to the central position of dots designated by dot generating position computing circuit 23 and the dots containing that center are read out and sent to next information compacting circuit 2, the information compacted here is delivered to buffer memory circuit B to temporarily store it, and then, it is transferred to direct access memory 4 and stored here, thus permitting curtailment of recorder capacity and contraction of image processing time to be achieved by such a process.
COPYRIGHT: (C)1981,JPO&Japio
JP13087579A 1979-10-12 1979-10-12 Preparation of dot image by compaction of information Pending JPS5655949A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13087579A JPS5655949A (en) 1979-10-12 1979-10-12 Preparation of dot image by compaction of information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13087579A JPS5655949A (en) 1979-10-12 1979-10-12 Preparation of dot image by compaction of information

Publications (1)

Publication Number Publication Date
JPS5655949A true JPS5655949A (en) 1981-05-16

Family

ID=15044728

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13087579A Pending JPS5655949A (en) 1979-10-12 1979-10-12 Preparation of dot image by compaction of information

Country Status (1)

Country Link
JP (1) JPS5655949A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58211758A (en) * 1982-05-28 1983-12-09 ドクトル−インジエニエ−ル・ル−ドルフ・ヘル・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Image reproduction method and apparatus
JPS62130059A (en) * 1985-11-30 1987-06-12 Dainippon Printing Co Ltd Film original block forming device for plain dot
US5666444A (en) * 1982-04-06 1997-09-09 Canon Kabushiki Kaisha Image processing apparatus
US5712929A (en) * 1982-04-06 1998-01-27 Canon Kabushiki Kaisha Image processing apparatus

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51123512A (en) * 1975-04-22 1976-10-28 Rikagaku Kenkyusho Binary picture reading method
JPS5454701A (en) * 1977-09-17 1979-05-01 Hell Rudolf Dr Ing Gmbh Method of forming screened plate

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51123512A (en) * 1975-04-22 1976-10-28 Rikagaku Kenkyusho Binary picture reading method
JPS5454701A (en) * 1977-09-17 1979-05-01 Hell Rudolf Dr Ing Gmbh Method of forming screened plate

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5666444A (en) * 1982-04-06 1997-09-09 Canon Kabushiki Kaisha Image processing apparatus
US5712929A (en) * 1982-04-06 1998-01-27 Canon Kabushiki Kaisha Image processing apparatus
JPS58211758A (en) * 1982-05-28 1983-12-09 ドクトル−インジエニエ−ル・ル−ドルフ・ヘル・ゲゼルシヤフト・ミツト・ベシユレンクテル・ハフツング Image reproduction method and apparatus
JPS62130059A (en) * 1985-11-30 1987-06-12 Dainippon Printing Co Ltd Film original block forming device for plain dot

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