JPS5538757A - Picture magnification/reduction system - Google Patents
Picture magnification/reduction systemInfo
- Publication number
- JPS5538757A JPS5538757A JP11163878A JP11163878A JPS5538757A JP S5538757 A JPS5538757 A JP S5538757A JP 11163878 A JP11163878 A JP 11163878A JP 11163878 A JP11163878 A JP 11163878A JP S5538757 A JPS5538757 A JP S5538757A
- Authority
- JP
- Japan
- Prior art keywords
- picture
- scanning direction
- main scanning
- scale factor
- read out
- 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
Links
Abstract
PURPOSE:To facilitate the magnification/reduction when an optional scale factor by first expanding the picture relating part or whole of the region designated on the original with the designated scale factor and then reducing the magnified picture into the desired scale factor. CONSTITUTION:When the information about the first picture element row and in the main scanning direction of the extracted region are all read out, the EOL signal is transmitted from address indication circuit 503. Circuit 503 reads out by X times the picture elements arranged in the main scanning direction within the extracted region. In other words, the original picture is magnified by X times in the main scanning direction. Shift register 509 varies the output state based on memorized correction coefficient alpha and every supply of the EOL signal. Then the information about the picture element rows arranged in the main scanning direction in the extracted region is read out by X times, and the line corresponding to coefficient alpha in the information read out is sampled or thinned.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11163878A JPS5538757A (en) | 1978-09-13 | 1978-09-13 | Picture magnification/reduction system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11163878A JPS5538757A (en) | 1978-09-13 | 1978-09-13 | Picture magnification/reduction system |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5538757A true JPS5538757A (en) | 1980-03-18 |
JPS6325553B2 JPS6325553B2 (en) | 1988-05-25 |
Family
ID=14566375
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11163878A Granted JPS5538757A (en) | 1978-09-13 | 1978-09-13 | Picture magnification/reduction system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5538757A (en) |
Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57152039A (en) * | 1981-03-14 | 1982-09-20 | Toshiba Corp | Storage and retrieval device for picture information |
US4440513A (en) * | 1981-03-12 | 1984-04-03 | Fuji Xerox Co., Ltd. | Character shaping device |
JPS59132278A (en) * | 1983-01-18 | 1984-07-30 | Dainippon Screen Mfg Co Ltd | Recording method with variable magnification of picture scanning recorder |
JPS59138162A (en) * | 1983-01-27 | 1984-08-08 | Dainippon Screen Mfg Co Ltd | Method for changing magnification in picture scanning recording device |
US4536802A (en) * | 1982-01-08 | 1985-08-20 | Fuji Xerox Co., Ltd. | Facsimile apparatus |
JPS61102870A (en) * | 1984-10-25 | 1986-05-21 | Casio Comput Co Ltd | Image reader |
JPS62501952A (en) * | 1985-02-26 | 1987-07-30 | アドバンスト・マイクロ・ディバイシズ・インコ−ポレ−テッド | Document resolution adaptation method and apparatus |
JPS63311866A (en) * | 1987-06-12 | 1988-12-20 | Matsushita Electric Ind Co Ltd | Scanning line density conversion method |
JPH0520452A (en) * | 1991-05-08 | 1993-01-29 | Internatl Business Mach Corp <Ibm> | Device and method of reducing digital-image |
US5600347A (en) * | 1993-12-30 | 1997-02-04 | International Business Machines Corporation | Horizontal image expansion system for flat panel displays |
-
1978
- 1978-09-13 JP JP11163878A patent/JPS5538757A/en active Granted
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4440513A (en) * | 1981-03-12 | 1984-04-03 | Fuji Xerox Co., Ltd. | Character shaping device |
JPS57152039A (en) * | 1981-03-14 | 1982-09-20 | Toshiba Corp | Storage and retrieval device for picture information |
JPH0241071B2 (en) * | 1981-03-14 | 1990-09-14 | Tokyo Shibaura Electric Co | |
US4536802A (en) * | 1982-01-08 | 1985-08-20 | Fuji Xerox Co., Ltd. | Facsimile apparatus |
JPS59132278A (en) * | 1983-01-18 | 1984-07-30 | Dainippon Screen Mfg Co Ltd | Recording method with variable magnification of picture scanning recorder |
JPH0238036B2 (en) * | 1983-01-18 | 1990-08-28 | Dainippon Screen Mfg | |
JPS59138162A (en) * | 1983-01-27 | 1984-08-08 | Dainippon Screen Mfg Co Ltd | Method for changing magnification in picture scanning recording device |
JPS61102870A (en) * | 1984-10-25 | 1986-05-21 | Casio Comput Co Ltd | Image reader |
JPS62501952A (en) * | 1985-02-26 | 1987-07-30 | アドバンスト・マイクロ・ディバイシズ・インコ−ポレ−テッド | Document resolution adaptation method and apparatus |
JPS63311866A (en) * | 1987-06-12 | 1988-12-20 | Matsushita Electric Ind Co Ltd | Scanning line density conversion method |
JPH0520452A (en) * | 1991-05-08 | 1993-01-29 | Internatl Business Mach Corp <Ibm> | Device and method of reducing digital-image |
US5600347A (en) * | 1993-12-30 | 1997-02-04 | International Business Machines Corporation | Horizontal image expansion system for flat panel displays |
Also Published As
Publication number | Publication date |
---|---|
JPS6325553B2 (en) | 1988-05-25 |
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