JPS6253107B2 - - Google Patents
Info
- Publication number
- JPS6253107B2 JPS6253107B2 JP56195940A JP19594081A JPS6253107B2 JP S6253107 B2 JPS6253107 B2 JP S6253107B2 JP 56195940 A JP56195940 A JP 56195940A JP 19594081 A JP19594081 A JP 19594081A JP S6253107 B2 JPS6253107 B2 JP S6253107B2
- Authority
- JP
- Japan
- Prior art keywords
- luminance signal
- pixel
- signal
- bits
- residual
- 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 14
- 238000013139 quantization Methods 0.000 claims description 11
- 238000010586 diagram Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000007796 conventional method Methods 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000012937 correction Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000009978 visual deterioration Effects 0.000 description 1
- 230000000007 visual 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
- H04N1/40—Picture signal circuits
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Image Input (AREA)
- Image Processing (AREA)
- Facsimile Image Signal Circuits (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56195940A JPS5896459A (ja) | 1981-12-04 | 1981-12-04 | 画像輝度信号の量子化方法 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56195940A JPS5896459A (ja) | 1981-12-04 | 1981-12-04 | 画像輝度信号の量子化方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5896459A JPS5896459A (ja) | 1983-06-08 |
JPS6253107B2 true JPS6253107B2 (de) | 1987-11-09 |
Family
ID=16349495
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56195940A Granted JPS5896459A (ja) | 1981-12-04 | 1981-12-04 | 画像輝度信号の量子化方法 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5896459A (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0428721Y2 (de) * | 1986-06-13 | 1992-07-13 |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6074772A (ja) * | 1983-09-29 | 1985-04-27 | Matsushita Electric Ind Co Ltd | 多値画像情報の量子化方法 |
JPS6139778A (ja) * | 1984-07-31 | 1986-02-25 | Seiko Epson Corp | 画像2値化処理方法 |
US4638373A (en) * | 1985-03-06 | 1987-01-20 | Metromedia, Inc. | Method and apparatus for improving gray scale resolution in an ink jet printing system |
JPH06103922B2 (ja) * | 1987-07-24 | 1994-12-14 | 松下電器産業株式会社 | 画像信号処理装置 |
JPH01264076A (ja) * | 1988-04-14 | 1989-10-20 | Dainippon Screen Mfg Co Ltd | 分割露光化網点画像記録装置 |
JPH02153676A (ja) * | 1988-12-05 | 1990-06-13 | Pfu Ltd | 中間調処理回路 |
JPH03139964A (ja) * | 1989-10-25 | 1991-06-14 | Nec Corp | ファクシミリ装置の画像信号回路 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3560957A (en) * | 1966-01-26 | 1971-02-02 | Hitachi Ltd | Signal conversion systems with storage and correction of quantization error |
JPS56101276A (en) * | 1980-01-17 | 1981-08-13 | Fuji Photo Film Co Ltd | Signal processing system for contrast picture |
-
1981
- 1981-12-04 JP JP56195940A patent/JPS5896459A/ja active Granted
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3560957A (en) * | 1966-01-26 | 1971-02-02 | Hitachi Ltd | Signal conversion systems with storage and correction of quantization error |
JPS56101276A (en) * | 1980-01-17 | 1981-08-13 | Fuji Photo Film Co Ltd | Signal processing system for contrast picture |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0428721Y2 (de) * | 1986-06-13 | 1992-07-13 |
Also Published As
Publication number | Publication date |
---|---|
JPS5896459A (ja) | 1983-06-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6118547A (en) | Image processing method and apparatus | |
US4975786A (en) | Image processing method and apparatus with error diffusion capability | |
US5394250A (en) | Image processing capable of handling multi-level image data without deterioration of image quality in highlight areas | |
US4551768A (en) | Method and apparatus for processing image signal | |
JPH0131753B2 (de) | ||
US4366507A (en) | Shaded picture signal processing system and method | |
JPS6253107B2 (de) | ||
US5760918A (en) | Image processing apparatus with conversion and reconversion of the number of bits per pixel | |
EP0382580B1 (de) | Bildverarbeitungsgerät | |
US6147771A (en) | Method of image density adjustment and apparatus using the method | |
US5481293A (en) | Image processing device for correcting an error in a multilevel image signal and for printing the image | |
JP2683085B2 (ja) | 画像処理装置 | |
JPH05183737A (ja) | 画像処理装置 | |
JP2810395B2 (ja) | 画像処理装置 | |
JP3165800B2 (ja) | 画像処理装置 | |
JP2570890B2 (ja) | 画像処理装置 | |
JP3048170B2 (ja) | カラー画像処理装置 | |
JP2667860B2 (ja) | 画像処理方法及び装置 | |
JPH01175367A (ja) | 画像処理装置 | |
JP2792581B2 (ja) | 画像処理装置 | |
JPH0575862A (ja) | 量子化誤差低減方法 | |
JP2622141B2 (ja) | 画像処理方法 | |
JPS59148466A (ja) | 画信号の量子化回路 | |
JPS6074772A (ja) | 多値画像情報の量子化方法 | |
JPH03192970A (ja) | 画像処理装置 |