DE69514484D1 - Bildkompression und -dekompression durch prädikative Kodierung und Fehlerdiffusion - Google Patents
Bildkompression und -dekompression durch prädikative Kodierung und FehlerdiffusionInfo
- Publication number
- DE69514484D1 DE69514484D1 DE69514484T DE69514484T DE69514484D1 DE 69514484 D1 DE69514484 D1 DE 69514484D1 DE 69514484 T DE69514484 T DE 69514484T DE 69514484 T DE69514484 T DE 69514484T DE 69514484 D1 DE69514484 D1 DE 69514484D1
- Authority
- DE
- Germany
- Prior art keywords
- decompression
- image compression
- error diffusion
- predictive coding
- predictive
- 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
- H04N1/4105—Bandwidth or redundancy reduction for halftone screened pictures
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
- G06T9/004—Predictors, e.g. intraframe, interframe coding
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
- G06T9/00—Image coding
- G06T9/005—Statistical coding, e.g. Huffman, run length coding
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Signal Processing (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Compression Of Band Width Or Redundancy In Fax (AREA)
- Image Processing (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US33217694A | 1994-10-31 | 1994-10-31 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69514484D1 true DE69514484D1 (de) | 2000-02-17 |
DE69514484T2 DE69514484T2 (de) | 2000-06-15 |
Family
ID=23297052
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69514484T Expired - Fee Related DE69514484T2 (de) | 1994-10-31 | 1995-10-31 | Bildkompression und -dekompression durch prädikative Kodierung und Fehlerdiffusion |
Country Status (4)
Country | Link |
---|---|
US (1) | US5859931A (de) |
EP (1) | EP0710008B1 (de) |
JP (1) | JPH08204971A (de) |
DE (1) | DE69514484T2 (de) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
SG65064A1 (en) * | 1997-04-09 | 1999-05-25 | Matsushita Electric Ind Co Ltd | Image predictive decoding method image predictive decoding apparatus image predictive coding method image predictive coding apparatus and data storage media |
US6633677B1 (en) | 1999-12-30 | 2003-10-14 | Stmicroelectronics, Inc. | Method and apparatus for processing an image in an image compression/decompression system that uses hierachical coding |
US6782143B1 (en) | 1999-12-30 | 2004-08-24 | Stmicroelectronics, Inc. | Method and apparatus for processing an image |
US6798543B1 (en) | 2000-09-13 | 2004-09-28 | Sharp Laboratories Of America Inc. | Method and apparatus for compression and decompression of halftoned images |
JP3857534B2 (ja) | 2001-03-21 | 2006-12-13 | 株式会社リコー | 画像圧縮処理装置 |
US8334845B2 (en) * | 2008-11-24 | 2012-12-18 | Firstrade Securities, Inc | Thwarting screen logging of keypad in a web-based form |
JP2012109726A (ja) * | 2010-11-16 | 2012-06-07 | Canon Inc | 画像処理装置および画像処理方法 |
Family Cites Families (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4149194A (en) * | 1977-07-07 | 1979-04-10 | Xerox Corporation | Variable angle electronic halftone screening |
JPS5497432A (en) * | 1978-01-18 | 1979-08-01 | Ricoh Co Ltd | Image density control method |
DE3067060D1 (en) * | 1979-12-20 | 1984-04-19 | Cambridge Consultants | Apparatus and method for generating a dispersed dot half tone picture from a continuous tone picture |
US4563671A (en) * | 1983-05-18 | 1986-01-07 | At&T Bell Laboratories | Coding technique |
US4559563A (en) * | 1983-10-11 | 1985-12-17 | Xerox Corporation | Adaptive prediction for binary encoded documents containing a mixture of text, line drawings and halftones |
US4633327A (en) * | 1983-11-10 | 1986-12-30 | Xerox Corporation | Enhancement halftoning |
JPS60153264A (ja) * | 1984-01-20 | 1985-08-12 | Ricoh Co Ltd | 中間調画像伝送方式 |
US4625222A (en) * | 1984-05-17 | 1986-11-25 | International Business Machines Corporation | Interacting print enhancement techniques |
US4709250A (en) * | 1985-02-19 | 1987-11-24 | Canon Kabushiki Kaisha | Image forming apparatus |
JPS61230571A (ja) * | 1985-04-05 | 1986-10-14 | Dainippon Screen Mfg Co Ltd | 画像走査装置 |
US4668995A (en) * | 1985-04-12 | 1987-05-26 | International Business Machines Corporation | System for reproducing mixed images |
US4654721A (en) * | 1985-04-12 | 1987-03-31 | International Business Machines Corporation | System for reproducing multi-level digital images on a bi-level printer of fixed dot size |
NL8501956A (nl) * | 1985-07-09 | 1987-02-02 | Philips Nv | Beeldherstelschakeling. |
IL77840A (en) * | 1986-02-10 | 1989-05-15 | Elscint Ltd | Data compression system for digital imaging |
US4693593A (en) * | 1986-06-24 | 1987-09-15 | Eastman Kodak Company | Electrographic process control |
US4706260A (en) * | 1986-11-07 | 1987-11-10 | Rca Corporation | DPCM system with rate-of-fill control of buffer occupancy |
US5043809A (en) * | 1986-11-25 | 1991-08-27 | Canon Kabushiki Kaisha | Encoding apparatus |
US4955065A (en) * | 1987-03-17 | 1990-09-04 | Digital Equipment Corporation | System for producing dithered images from continuous-tone image data |
US4724461A (en) * | 1987-04-06 | 1988-02-09 | Eastman Kodak Company | Dynamic process control for electrostatographic machines |
US4924322A (en) * | 1988-03-18 | 1990-05-08 | Matsushita Electric Industrial Co., Ltd. | Bi-level image display signal processing apparatus |
US5282256A (en) * | 1988-05-13 | 1994-01-25 | Canon Kabushiki Kaisha | Binary image data coding method having the function of correcting errors derived from coding |
US5086487A (en) * | 1988-11-24 | 1992-02-04 | Canon Kabushiki Kaisha | Method and apparatus for image encoding in which reference pixels for predictive encoding can be selected based on image size |
US5309526A (en) * | 1989-05-04 | 1994-05-03 | At&T Bell Laboratories | Image processing system |
US5045952A (en) * | 1989-08-21 | 1991-09-03 | Xerox Corporation | Method for edge enhanced error diffusion |
US5095374A (en) * | 1989-10-10 | 1992-03-10 | Unisys Corporation | Method and apparatus for lossless compression and decompression of image data |
CA2028092C (en) * | 1989-10-23 | 1996-08-06 | Yuji Tanaka | Binary image processing apparatus |
US5055942A (en) * | 1990-02-06 | 1991-10-08 | Levien Raphael L | Photographic image reproduction device using digital halftoning to screen images allowing adjustable coarseness |
JPH03248674A (ja) * | 1990-02-27 | 1991-11-06 | Casio Comput Co Ltd | 中間調画像処理装置 |
JPH0772839A (ja) * | 1990-03-01 | 1995-03-17 | Ricoh Co Ltd | カラービデオディスプレイ装置 |
JP2974363B2 (ja) * | 1990-04-02 | 1999-11-10 | 株式会社リコー | 画像処理装置 |
US5226094A (en) * | 1990-10-19 | 1993-07-06 | Xerox Corporation | Method for making image conversions with error diffusion |
US5323247A (en) * | 1990-12-04 | 1994-06-21 | Research Corporation Technologies | Method and apparatus for halftoning and inverse halftoning and the transmission of such images |
JP2832089B2 (ja) * | 1991-01-28 | 1998-12-02 | キヤノン株式会社 | 画像処理装置 |
DE69227217T2 (de) * | 1991-07-15 | 1999-03-25 | Canon K.K., Tokio/Tokyo | Bildkodierung |
US5226096A (en) * | 1991-10-11 | 1993-07-06 | Xerox Corporation | Digital halftoning with selectively applied dot-to-dot error diffusion |
US5268774A (en) * | 1991-11-27 | 1993-12-07 | Xerox Corporation | Halftoning with enhanced dynamic range and edge enhanced error diffusion |
US5243443A (en) * | 1991-12-06 | 1993-09-07 | Xerox Corporation | Halftoning with error feedback and image dependent enhancement |
US5359430A (en) * | 1992-05-15 | 1994-10-25 | Microsoft Corporation | Block-halftoning method and system with compressed error image |
US5321525A (en) * | 1992-12-14 | 1994-06-14 | Xerox Corporation | Clustered halftoning with dot-to-dot error diffusion |
US5278670A (en) * | 1992-12-18 | 1994-01-11 | Xerox Corporation | Content-based resolution conversion of color documents |
US5325211A (en) * | 1993-01-04 | 1994-06-28 | Xerox Corporation | Error diffusion with output and input based feedback |
US5463703A (en) * | 1994-02-10 | 1995-10-31 | Lin; Bob | Dither picture data pre-compression processing method |
US5535311A (en) * | 1994-07-28 | 1996-07-09 | Hewlett-Packard Company | Method and apparatus for image-type determination to enable choice of an optimum data compression procedure |
-
1995
- 1995-08-29 JP JP7220368A patent/JPH08204971A/ja not_active Withdrawn
- 1995-10-31 EP EP95307773A patent/EP0710008B1/de not_active Expired - Lifetime
- 1995-10-31 DE DE69514484T patent/DE69514484T2/de not_active Expired - Fee Related
-
1996
- 1996-05-28 US US08/653,981 patent/US5859931A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0710008B1 (de) | 2000-01-12 |
EP0710008A1 (de) | 1996-05-01 |
JPH08204971A (ja) | 1996-08-09 |
US5859931A (en) | 1999-01-12 |
DE69514484T2 (de) | 2000-06-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |