JPS5655949A - Preparation of dot image by compaction of information - Google Patents
Preparation of dot image by compaction of informationInfo
- 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
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
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)
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)
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 |
-
1979
- 1979-10-12 JP JP13087579A patent/JPS5655949A/en active Pending
Patent Citations (2)
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)
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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