JPS57119561A - Binary-coding processing method for analog picture signal - Google Patents
Binary-coding processing method for analog picture signalInfo
- Publication number
- JPS57119561A JPS57119561A JP56006061A JP606181A JPS57119561A JP S57119561 A JPS57119561 A JP S57119561A JP 56006061 A JP56006061 A JP 56006061A JP 606181 A JP606181 A JP 606181A JP S57119561 A JPS57119561 A JP S57119561A
- Authority
- JP
- Japan
- Prior art keywords
- binary
- coding
- processing
- gradation
- density
- 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
Classifications
-
- 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
- H04N1/40—Picture signal circuits
- H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
Abstract
PURPOSE:To set the density of even gradation-processing binary coding by using gradation-processing comparison levels as many as the set densities of simple binary coding, and specifying a processing comparison level by a binary-coding processing-mode indication signal and a density indication signal. CONSTITUTION:In an ROMDMD2, groups of comparison level data for gradation processinag and those for simple binary-coding processing are stored as many as density specifying signals. Address data for the DMD2 is generated by a picture-element address specifying circuit ACC for picture elements in a main and a subordinate scanning direction, and an address switching circuit AEC. The AEC inputs the output of the ACC, a gradation control signal for binary- coding mode indication and density indication signals. With a binary-coding processing mode signal, the comparison level data for the gradation-processing binary coding or simple binary coding of the DMD2 is specified, and the group of the gradation-processing comparison level used for the gradation binary coding and the binary-coding processing comparison level for the simple binary coding are specified by the density indication signals.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56006061A JPS57119561A (en) | 1981-01-19 | 1981-01-19 | Binary-coding processing method for analog picture signal |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56006061A JPS57119561A (en) | 1981-01-19 | 1981-01-19 | Binary-coding processing method for analog picture signal |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57119561A true JPS57119561A (en) | 1982-07-26 |
JPH0340553B2 JPH0340553B2 (en) | 1991-06-19 |
Family
ID=11628068
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56006061A Granted JPS57119561A (en) | 1981-01-19 | 1981-01-19 | Binary-coding processing method for analog picture signal |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57119561A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6094576A (en) * | 1983-10-28 | 1985-05-27 | Hitachi Ltd | Picture signal processor |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5578668A (en) * | 1978-12-01 | 1980-06-13 | Xerox Corp | Method of and device for processing video |
-
1981
- 1981-01-19 JP JP56006061A patent/JPS57119561A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5578668A (en) * | 1978-12-01 | 1980-06-13 | Xerox Corp | Method of and device for processing video |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6094576A (en) * | 1983-10-28 | 1985-05-27 | Hitachi Ltd | Picture signal processor |
Also Published As
Publication number | Publication date |
---|---|
JPH0340553B2 (en) | 1991-06-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ATE31856T1 (en) | COLOR CONTROLLED SWITCH. | |
JPS5533348A (en) | Noise elimination system | |
JPS55162179A (en) | Picture processing method | |
JPS57193173A (en) | Picture scanning and recording method | |
JPS57119561A (en) | Binary-coding processing method for analog picture signal | |
JPS57119562A (en) | Binary-coded gradation processing method for analog picture signal | |
JPS5484914A (en) | Letter and picture transmission system with high efficiency | |
JPS57119564A (en) | Half-tone picture processing method | |
JPS5523653A (en) | Reproducing method of intermediate tone | |
JPS57137970A (en) | Picture area designating method | |
JPS576964A (en) | Picture extracting method | |
JPS5775061A (en) | Variable magnification method for harf tone picture | |
JPS54144127A (en) | Display system of intermediate tone by binary picture element | |
JPS55124361A (en) | Redundancy suppression coding system | |
JPS57119560A (en) | Binary-coding processing method for analog picture signal | |
JPS57120180A (en) | Binary coding processing method of picture information | |
JPS54146530A (en) | Binary coding circuit | |
JPS57129064A (en) | Picture signal processing system | |
JPS55105775A (en) | Binary coding system | |
JPS5725076A (en) | Method for binary-coding of video signal | |
JPS57117061A (en) | Picture rotary processing method | |
JPS57206170A (en) | Image processor | |
JPS5419322A (en) | Signal processing unit corresponding to video signal obtained from solid state image sensor | |
JPS6457876A (en) | Picture processor | |
JPS55161467A (en) | Picture processing method |