FR2581280B1 - Procede et appareil de traitement d'un signal d'image - Google Patents
Procede et appareil de traitement d'un signal d'imageInfo
- Publication number
- FR2581280B1 FR2581280B1 FR8606066A FR8606066A FR2581280B1 FR 2581280 B1 FR2581280 B1 FR 2581280B1 FR 8606066 A FR8606066 A FR 8606066A FR 8606066 A FR8606066 A FR 8606066A FR 2581280 B1 FR2581280 B1 FR 2581280B1
- Authority
- FR
- France
- Prior art keywords
- processing
- image signal
- image
- signal
- 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 - Fee Related
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
- H04N1/41—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
- H04N1/417—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information using predictive or differential encoding
- H04N1/4175—Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information using predictive or differential encoding involving the encoding of tone transitions with respect to tone transitions in a reference line
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9138285A JPS61251275A (ja) | 1985-04-27 | 1985-04-27 | 画像信号の処理回路 |
JP9292085A JPS61251369A (ja) | 1985-04-30 | 1985-04-30 | 画像信号の符号化回路 |
JP9291985A JPS61251370A (ja) | 1985-04-30 | 1985-04-30 | 画像信号の復号化回路 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2581280A1 FR2581280A1 (fr) | 1986-10-31 |
FR2581280B1 true FR2581280B1 (fr) | 1994-02-25 |
Family
ID=27306722
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR8606066A Expired - Fee Related FR2581280B1 (fr) | 1985-04-27 | 1986-04-25 | Procede et appareil de traitement d'un signal d'image |
Country Status (6)
Country | Link |
---|---|
US (1) | US4955061A (fr) |
CA (1) | CA1291822C (fr) |
DE (1) | DE3614143C2 (fr) |
FR (1) | FR2581280B1 (fr) |
GB (1) | GB2175769B (fr) |
NL (1) | NL8601086A (fr) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH02235185A (ja) * | 1989-03-09 | 1990-09-18 | Ricoh Co Ltd | 図形再生方法 |
KR930006750B1 (ko) * | 1989-06-29 | 1993-07-23 | 삼성전자 주식회사 | 화상데이터 부호화장치 |
US5196945A (en) * | 1990-09-04 | 1993-03-23 | Motorola, Inc. | Data compression/expansion circuit for facsimile apparatus |
US5229863A (en) * | 1990-12-24 | 1993-07-20 | Xerox Corporation | High speed CCITT decompressor |
NL9201415A (nl) * | 1992-08-06 | 1994-03-01 | Oce Nederland Bv | Werkwijze en inrichting voor het coderen en decoderen van digitale beeldgegevens. |
JPH06274612A (ja) * | 1993-03-17 | 1994-09-30 | Matsushita Electric Ind Co Ltd | 画像処理装置 |
KR100363588B1 (ko) * | 1993-03-25 | 2003-02-17 | 세이코 엡슨 가부시키가이샤 | 화상처리장치 |
JPH07322075A (ja) * | 1994-03-29 | 1995-12-08 | Mitsubishi Electric Corp | 画像処理装置及びスキャナ装置及びプリンタ装置及びディジタル複写機及びディスプレイ装置 |
EP0677811A1 (fr) * | 1994-04-15 | 1995-10-18 | Canon Kabushiki Kaisha | Système de traitement d'images avec compression JPEG instantnée |
DE19952766A1 (de) * | 1999-11-02 | 2001-05-03 | Micronas Gmbh | Verfahren zum Wiedergeben des Farbwertes |
US6888968B1 (en) * | 2000-09-21 | 2005-05-03 | Kabushiki Kaisha Toshiba | Image processing apparatus and image processing method |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3670099A (en) * | 1968-03-18 | 1972-06-13 | Itek Corp | Facsimile system utilizing pre-scan detection of indicia |
US3916095A (en) * | 1972-02-17 | 1975-10-28 | Dacom Inc | Dual-line data compression method and system for compressing, transmitting and reproducing facsimile data |
US3912861A (en) * | 1974-01-30 | 1975-10-14 | Exxon Research Engineering Co | Method and apparatus for time compression of facsimile transmissions |
US4107648A (en) * | 1976-04-12 | 1978-08-15 | Bell Telephone Laboratories, Incorporated | Scan encoding of two dimensional pictorial entities |
US4228469A (en) * | 1976-04-30 | 1980-10-14 | Exxon Research & Engineering Co. | Method and apparatus for time compression of facsimile transmissions |
US4092676A (en) * | 1976-12-29 | 1978-05-30 | Xerox Corporation | Block length multiple plus run length residue codes for run length encoding |
FR2441297A1 (fr) * | 1978-11-09 | 1980-06-06 | Cit Alcatel | Dispositif de conversion binaire et applications aux emetteurs et recepteurs d'informations d'image a reduction de redondance |
US4376933A (en) * | 1979-02-22 | 1983-03-15 | Xerox Corporation | Circuit for compacting data |
JPS57207960A (en) * | 1981-06-17 | 1982-12-20 | Toshiba Corp | Method for adding error correcting code to variable length data |
JPS583473A (ja) * | 1981-06-30 | 1983-01-10 | Fujitsu Ltd | 圧縮符号化方式 |
CH653813A5 (de) * | 1982-02-10 | 1986-01-15 | Woertz Oskar | Elektrische klemme. |
IT1155650B (it) * | 1982-03-19 | 1987-01-28 | Olivetti & Co Spa | Metodo ed apparecchiatura di compressione e decompressione di informazioni digitali di immagini |
US4486784A (en) * | 1982-12-27 | 1984-12-04 | International Business Machines Corporation | Image compression systems |
JPS59126368A (ja) * | 1983-01-10 | 1984-07-20 | Hitachi Ltd | 符号化復号化装置 |
JPS6018061A (ja) * | 1983-07-12 | 1985-01-30 | Fuji Xerox Co Ltd | 原稿読取装置の副走査方法 |
US4700234A (en) * | 1983-08-30 | 1987-10-13 | Canon Kabushiki Kaisha | Image processing system |
US4568983A (en) * | 1983-12-07 | 1986-02-04 | The Mead Corporation | Image data compression/decompression |
US4716467A (en) * | 1985-02-27 | 1987-12-29 | Advanced Micro Devices, Inc. | Speed-up method and apparatus for two-dimensional facsimile coding and decoding |
JPS6238658A (ja) * | 1985-08-14 | 1987-02-19 | Hitachi Ltd | 副走査速度の制御方法 |
-
1986
- 1986-04-24 GB GB8610045A patent/GB2175769B/en not_active Expired
- 1986-04-25 DE DE3614143A patent/DE3614143C2/de not_active Expired - Fee Related
- 1986-04-25 CA CA000507581A patent/CA1291822C/fr not_active Expired - Lifetime
- 1986-04-25 FR FR8606066A patent/FR2581280B1/fr not_active Expired - Fee Related
- 1986-04-28 NL NL8601086A patent/NL8601086A/nl not_active Application Discontinuation
-
1988
- 1988-12-06 US US07/281,904 patent/US4955061A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE3614143A1 (de) | 1986-11-06 |
GB2175769A (en) | 1986-12-03 |
FR2581280A1 (fr) | 1986-10-31 |
DE3614143C2 (de) | 1997-01-23 |
GB2175769B (en) | 1989-12-28 |
US4955061A (en) | 1990-09-04 |
GB8610045D0 (en) | 1986-05-29 |
CA1291822C (fr) | 1991-11-05 |
NL8601086A (nl) | 1986-11-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |