JPS54144127A - Display system of intermediate tone by binary picture element - Google Patents
Display system of intermediate tone by binary picture elementInfo
- Publication number
- JPS54144127A JPS54144127A JP5291378A JP5291378A JPS54144127A JP S54144127 A JPS54144127 A JP S54144127A JP 5291378 A JP5291378 A JP 5291378A JP 5291378 A JP5291378 A JP 5291378A JP S54144127 A JPS54144127 A JP S54144127A
- Authority
- JP
- Japan
- Prior art keywords
- picture element
- address
- intermediate tone
- pattern
- 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.)
- Pending
Links
Landscapes
- Preparing Plates And Mask In Photomechanical Process (AREA)
- Image Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
Abstract
PURPOSE: To reproduce the intermediate tone of line picture or mechanical picture with high quality, by selecting the regular pattern corresponding to the level of intermediate tone, taking the regular pattern as specified picture element, and assigning the black picture element depending on the concentration level from the circumference in the unit area.
CONSTITUTION: In the intermediate tone display system expressing the intermediate tone with white and black binary picture element, the regular patterns of a plurality assigning the black picture element depending on the amplitude of the concentration level from the circumference in the unit area is memorized in the pattern memory 33, and when the video signal VD is inputted, quantization is made with the quantizer 30, and the address correspondnce between the input picture element address and the address of pattern matrix is taken by controlling the address controller 31. Further, the address designating the threshold pattern from the memory 33 is read out to the output picture controller 31, it is compared with the concentration quantized with the quantizer 30, and with the result, the data 1 or 0 is outputted to the plotter PLT as the output picture element information.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5291378A JPS54144127A (en) | 1978-05-01 | 1978-05-01 | Display system of intermediate tone by binary picture element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5291378A JPS54144127A (en) | 1978-05-01 | 1978-05-01 | Display system of intermediate tone by binary picture element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54144127A true JPS54144127A (en) | 1979-11-10 |
Family
ID=12928063
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5291378A Pending JPS54144127A (en) | 1978-05-01 | 1978-05-01 | Display system of intermediate tone by binary picture element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54144127A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56115073A (en) * | 1980-02-18 | 1981-09-10 | Canon Inc | Picture scanning method |
| JPS57159172A (en) * | 1981-03-24 | 1982-10-01 | Konishiroku Photo Ind Co Ltd | Image processor |
| JPS5844860A (en) * | 1981-09-11 | 1983-03-15 | Nippon Telegr & Teleph Corp <Ntt> | Processing method for intermediate tone |
| JPS58212259A (en) * | 1982-06-03 | 1983-12-09 | Mitsubishi Electric Corp | Method for displaying picture |
-
1978
- 1978-05-01 JP JP5291378A patent/JPS54144127A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56115073A (en) * | 1980-02-18 | 1981-09-10 | Canon Inc | Picture scanning method |
| JPH0147946B2 (en) * | 1980-02-18 | 1989-10-17 | Canon Kk | |
| JPS57159172A (en) * | 1981-03-24 | 1982-10-01 | Konishiroku Photo Ind Co Ltd | Image processor |
| JPH0239152B2 (en) * | 1981-03-24 | 1990-09-04 | Konishiroku Photo Ind | |
| JPS5844860A (en) * | 1981-09-11 | 1983-03-15 | Nippon Telegr & Teleph Corp <Ntt> | Processing method for intermediate tone |
| JPS58212259A (en) * | 1982-06-03 | 1983-12-09 | Mitsubishi Electric Corp | Method for displaying picture |
| JPH0126589B2 (en) * | 1982-06-03 | 1989-05-24 | Mitsubishi Electric Corp |
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