JPS5630361A - Picture processing method - Google Patents
Picture processing methodInfo
- Publication number
- JPS5630361A JPS5630361A JP10514479A JP10514479A JPS5630361A JP S5630361 A JPS5630361 A JP S5630361A JP 10514479 A JP10514479 A JP 10514479A JP 10514479 A JP10514479 A JP 10514479A JP S5630361 A JPS5630361 A JP S5630361A
- Authority
- JP
- Japan
- Prior art keywords
- picture
- areas
- density
- memory
- sent
- 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
- H04N1/40068—Modification of image resolution, i.e. determining the values of picture elements at new relative positions
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Editing Of Facsimile Originals (AREA)
Abstract
PURPOSE:To make it possible to obtain a reproduced picture of excellent resolution and sharpness by performing arithmetic processing to a fixed density as to read picture-element information. CONSTITUTION:An input picture-element signal from a scanner is quantized by A/ D converter 1 into a quinary signal, which is sent to memory 3 and each picture element information on specific picture-element areas of three by three is collected and stored, thereby determining the density level of each small picture element when arithmetic circuit 3 converts the same areas into small picture-element areas of six by six in accordance with the memory contents. Next, each small picture-element information processed to a high picture-element density is sent to memory 4, whose memory contents are transferred successively to arithmetic circuit 6 by way of gate 5 to determine the density level of each intermediate picture element when the same areas are converted into intermediate picture-element areas of four by four. Then, each intermediate picture-element information processed to a low picture-element density is stored in memory 7 and then sent to the plotter successively, reproducing the picture.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10514479A JPS5630361A (en) | 1979-08-18 | 1979-08-18 | Picture processing method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10514479A JPS5630361A (en) | 1979-08-18 | 1979-08-18 | Picture processing method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5630361A true JPS5630361A (en) | 1981-03-26 |
JPS6117432B2 JPS6117432B2 (en) | 1986-05-07 |
Family
ID=14399535
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10514479A Granted JPS5630361A (en) | 1979-08-18 | 1979-08-18 | Picture processing method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5630361A (en) |
-
1979
- 1979-08-18 JP JP10514479A patent/JPS5630361A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6117432B2 (en) | 1986-05-07 |
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