JPS5791071A - Picture magnifying system - Google Patents
Picture magnifying systemInfo
- Publication number
- JPS5791071A JPS5791071A JP55136010A JP13601080A JPS5791071A JP S5791071 A JPS5791071 A JP S5791071A JP 55136010 A JP55136010 A JP 55136010A JP 13601080 A JP13601080 A JP 13601080A JP S5791071 A JPS5791071 A JP S5791071A
- Authority
- JP
- Japan
- Prior art keywords
- picture
- magnification
- magnified
- electric
- wide range
- 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
- 230000003287 optical effect Effects 0.000 abstract 2
Classifications
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T3/00—Geometric image transformations in the plane of the image
- G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
-
- 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
- H04N1/387—Composing, repositioning or otherwise geometrically modifying originals
- H04N1/393—Enlarging or reducing
- H04N1/3935—Enlarging or reducing with modification of image resolution, i.e. determining the values of picture elements at new relative positions
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Variable Magnification In Projection-Type Copying Machines (AREA)
- Image Processing (AREA)
- Facsimile Scanning Arrangements (AREA)
- Editing Of Facsimile Originals (AREA)
Abstract
PURPOSE:To achieve a device in which the magnification can be varied continuously over a wide range, by combining an optical and an electric magnification system, in a picture processing device. CONSTITUTION:A picture is magnified with an optical system 3 within the range of magnification suitable for cost and video quality, and the magnified picture is converted into an electric video data. This picture data is magnified into a multiple or a fraction with an electric magnifier 10. Thus, the magnification can be varied continuously at a wide range, allowing to achieve excellent video quality with low cost.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55136010A JPS5791071A (en) | 1980-09-30 | 1980-09-30 | Picture magnifying system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP55136010A JPS5791071A (en) | 1980-09-30 | 1980-09-30 | Picture magnifying system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5791071A true JPS5791071A (en) | 1982-06-07 |
Family
ID=15165067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP55136010A Pending JPS5791071A (en) | 1980-09-30 | 1980-09-30 | Picture magnifying system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5791071A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5912665A (en) * | 1982-07-13 | 1984-01-23 | Nec Corp | Device for magnifying bit pattern and compensating oblique line |
JPS61181272A (en) * | 1985-02-07 | 1986-08-13 | Oki Electric Ind Co Ltd | Picture processing method |
JPS61242466A (en) * | 1985-04-19 | 1986-10-28 | Ricoh Co Ltd | Image variable power system |
JPS6346065A (en) * | 1986-08-13 | 1988-02-26 | Fuji Photo Film Co Ltd | Image magnification changing method |
US4812915A (en) * | 1986-03-28 | 1989-03-14 | Minolta Camera Kabushiki Kaisha | Image reading apparatus which eliminates moire patterns by magnifying an image optically and reducing it electrically |
US4893195A (en) * | 1987-08-27 | 1990-01-09 | Minolta Camera Kabushiki Kaisha | Image processing apparatus capable of eliminating moire pattern |
US4939590A (en) * | 1987-08-28 | 1990-07-03 | Minolta Camera Kabushiki Kaisha | Image reading apparatus capable of eliminating moire pattern |
-
1980
- 1980-09-30 JP JP55136010A patent/JPS5791071A/en active Pending
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5912665A (en) * | 1982-07-13 | 1984-01-23 | Nec Corp | Device for magnifying bit pattern and compensating oblique line |
JPS61181272A (en) * | 1985-02-07 | 1986-08-13 | Oki Electric Ind Co Ltd | Picture processing method |
JPS61242466A (en) * | 1985-04-19 | 1986-10-28 | Ricoh Co Ltd | Image variable power system |
US4812915A (en) * | 1986-03-28 | 1989-03-14 | Minolta Camera Kabushiki Kaisha | Image reading apparatus which eliminates moire patterns by magnifying an image optically and reducing it electrically |
JPS6346065A (en) * | 1986-08-13 | 1988-02-26 | Fuji Photo Film Co Ltd | Image magnification changing method |
US4893195A (en) * | 1987-08-27 | 1990-01-09 | Minolta Camera Kabushiki Kaisha | Image processing apparatus capable of eliminating moire pattern |
US4939590A (en) * | 1987-08-28 | 1990-07-03 | Minolta Camera Kabushiki Kaisha | Image reading apparatus capable of eliminating moire pattern |
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