JPS6417568A - Image data encoding and decoding system - Google Patents
Image data encoding and decoding systemInfo
- Publication number
- JPS6417568A JPS6417568A JP17280187A JP17280187A JPS6417568A JP S6417568 A JPS6417568 A JP S6417568A JP 17280187 A JP17280187 A JP 17280187A JP 17280187 A JP17280187 A JP 17280187A JP S6417568 A JPS6417568 A JP S6417568A
- Authority
- JP
- Japan
- Prior art keywords
- data
- image data
- memory
- stored
- block
- 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
Abstract
PURPOSE:To reduce the quantity of data to be stored in order to improve the efficiency of a memory, and to facilitate the restoring of original image data by dividing binary image data obtained by raster-scanning an original into equal data arrayed in the scanning line direction. CONSTITUTION:The binary image data stored in an image memory 1 is divided into equal parts in the blocks arrayed in the scanning line direction by means of shift registers 2 and comparison registers 3. Such block data on a scanning line that includes picture element data in '1' is extracted in the unit of block by means of a flag register 4, a counter 5, and an address register 6, to form compressed image data. This compressed image data, the address of block data, and a block data number are stored in a compression memory 8. To restore the data, the content in the memory 8 is read out, and stored in a reproduction image memory 1, and thus the purpose is fulfilled.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17280187A JPS6417568A (en) | 1987-07-13 | 1987-07-13 | Image data encoding and decoding system |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP17280187A JPS6417568A (en) | 1987-07-13 | 1987-07-13 | Image data encoding and decoding system |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6417568A true JPS6417568A (en) | 1989-01-20 |
Family
ID=15948622
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP17280187A Pending JPS6417568A (en) | 1987-07-13 | 1987-07-13 | Image data encoding and decoding system |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6417568A (en) |
-
1987
- 1987-07-13 JP JP17280187A patent/JPS6417568A/en active Pending
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