JPS646589B2 - - Google Patents
Info
- Publication number
- JPS646589B2 JPS646589B2 JP54150294A JP15029479A JPS646589B2 JP S646589 B2 JPS646589 B2 JP S646589B2 JP 54150294 A JP54150294 A JP 54150294A JP 15029479 A JP15029479 A JP 15029479A JP S646589 B2 JPS646589 B2 JP S646589B2
- Authority
- JP
- Japan
- Prior art keywords
- change point
- scanning line
- change
- point
- data
- 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.)
- Expired
Links
- 238000000034 method Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 11
- 238000007906 compression Methods 0.000 claims description 7
- 230000006835 compression Effects 0.000 claims description 7
- 238000013144 data compression Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 2
- 230000012447 hatching Effects 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
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
- H04N1/41—Bandwidth or redundancy reduction
- H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
- H04N1/413—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image Processing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15029479A JPS5673974A (en) | 1979-11-20 | 1979-11-20 | Compression system of picture data |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15029479A JPS5673974A (en) | 1979-11-20 | 1979-11-20 | Compression system of picture data |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5673974A JPS5673974A (en) | 1981-06-19 |
JPS646589B2 true JPS646589B2 (fr) | 1989-02-03 |
Family
ID=15493842
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15029479A Granted JPS5673974A (en) | 1979-11-20 | 1979-11-20 | Compression system of picture data |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5673974A (fr) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6051072A (ja) * | 1983-08-30 | 1985-03-22 | Canon Inc | 画像処理方法 |
JPS6097770A (ja) * | 1983-11-02 | 1985-05-31 | Canon Inc | 画像処理装置 |
JPS61252765A (ja) * | 1985-05-01 | 1986-11-10 | Nec Corp | フアクシミリ符号化回路 |
JPS62259183A (ja) * | 1986-05-06 | 1987-11-11 | Canon Inc | 画像処理装置 |
JPS6359464U (fr) * | 1986-10-08 | 1988-04-20 | ||
JPH02106761U (fr) * | 1989-02-09 | 1990-08-24 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5245912B2 (fr) * | 1973-06-13 | 1977-11-19 | ||
JPS5412515A (en) * | 1977-06-29 | 1979-01-30 | Ricoh Co Ltd | Data compression system |
-
1979
- 1979-11-20 JP JP15029479A patent/JPS5673974A/ja active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS5673974A (en) | 1981-06-19 |
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