DE69026320D1 - Halbtonbilddatenkomprimierungsverfahren und -vorrichtung - Google Patents
Halbtonbilddatenkomprimierungsverfahren und -vorrichtungInfo
- Publication number
- DE69026320D1 DE69026320D1 DE69026320T DE69026320T DE69026320D1 DE 69026320 D1 DE69026320 D1 DE 69026320D1 DE 69026320 T DE69026320 T DE 69026320T DE 69026320 T DE69026320 T DE 69026320T DE 69026320 D1 DE69026320 D1 DE 69026320D1
- Authority
- DE
- Germany
- Prior art keywords
- image data
- data compression
- compression method
- halftone image
- halftone
- 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
-
- 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
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1194619A JPH088642B2 (ja) | 1989-07-27 | 1989-07-27 | 網点画像データ圧縮装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69026320D1 true DE69026320D1 (de) | 1996-05-09 |
DE69026320T2 DE69026320T2 (de) | 1996-09-05 |
Family
ID=16327546
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69026320T Expired - Fee Related DE69026320T2 (de) | 1989-07-27 | 1990-07-25 | Halbtonbilddatenkomprimierungsverfahren und -vorrichtung |
Country Status (4)
Country | Link |
---|---|
US (1) | US5177622A (de) |
EP (1) | EP0410739B1 (de) |
JP (1) | JPH088642B2 (de) |
DE (1) | DE69026320T2 (de) |
Families Citing this family (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0630280A (ja) * | 1991-03-19 | 1994-02-04 | Nec Eng Ltd | 2値画像データのブロック別選択型符号化前処理方式 |
US5502439A (en) * | 1994-05-16 | 1996-03-26 | The United States Of America As Represented By The United States Department Of Energy | Method for compression of binary data |
JP3278297B2 (ja) * | 1994-07-20 | 2002-04-30 | 富士通株式会社 | データ圧縮方法及びデータ復元方法並びにデータ圧縮装置及びデータ復元装置 |
JP3150856B2 (ja) * | 1994-10-12 | 2001-03-26 | 株式会社リコー | 画像処理方法 |
WO1996036164A2 (en) * | 1995-05-09 | 1996-11-14 | Apple Computer, Inc. | Method and apparatus for compressing image data |
US5864711A (en) * | 1995-07-05 | 1999-01-26 | Microsoft Corporation | System for determining more accurate translation between first and second translator, and providing translated data to second computer if first translator is more accurate |
US6911987B1 (en) * | 1995-07-05 | 2005-06-28 | Microsoft Corporation | Method and system for transmitting data for a shared application |
US5689255A (en) * | 1995-08-22 | 1997-11-18 | Hewlett-Packard Company | Method and apparatus for compressing and decompressing image data |
US5874907A (en) * | 1997-09-19 | 1999-02-23 | International Business Machines Corporation | Method and apparatus for providing improved data compression efficiency for an adaptive data compressor |
JP3730385B2 (ja) * | 1997-12-05 | 2006-01-05 | 株式会社東芝 | デ−タ圧縮装置 |
US6038346A (en) * | 1998-01-29 | 2000-03-14 | Seiko Espoo Corporation | Runs of adaptive pixel patterns (RAPP) for lossless image compression |
JP4424845B2 (ja) | 1999-12-20 | 2010-03-03 | 本田 正 | イメージデータ圧縮方法及び復元方法 |
JP4567799B2 (ja) * | 1999-12-20 | 2010-10-20 | 本田 正 | イメージデータ圧縮方法及び復元方法 |
US6798543B1 (en) | 2000-09-13 | 2004-09-28 | Sharp Laboratories Of America Inc. | Method and apparatus for compression and decompression of halftoned images |
US7418664B2 (en) * | 2002-04-03 | 2008-08-26 | Microsoft Corporation | Application sharing single document sharing |
US7028266B2 (en) | 2002-04-05 | 2006-04-11 | Microsoft Corporation | Processing occluded windows during application sharing |
US8756513B1 (en) | 2002-04-23 | 2014-06-17 | Microsoft Corporation | Document viewing mechanism for document sharing environment |
US7293243B1 (en) * | 2002-05-22 | 2007-11-06 | Microsoft Corporation | Application sharing viewer presentation |
US7356563B1 (en) | 2002-06-06 | 2008-04-08 | Microsoft Corporation | Methods of annotating a collaborative application display |
US7005957B2 (en) * | 2004-05-29 | 2006-02-28 | Tsung-Mou Yu | Mechanism for trip-free of the bimetallic plate of a safety switch device |
AU2005248949B2 (en) * | 2005-12-23 | 2010-04-01 | Canon Kabushiki Kaisha | Efficient Halftone Image Compression |
CN101438597B (zh) * | 2006-05-17 | 2011-05-11 | 富士通株式会社 | 图像数据压缩装置、压缩方法、图像数据恢复装置、恢复方法 |
BE1025127B1 (de) * | 2017-04-10 | 2018-11-16 | Phoenix Contact Gmbh & Co | Kommunikationssystem zur seriellen Kommunikation zwischen Kommunikationsgeräten |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2253378C3 (de) * | 1972-10-31 | 1981-02-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren und Anordnung zur Codierung von Faksimilesignalen |
JPS5412515A (en) * | 1977-06-29 | 1979-01-30 | Ricoh Co Ltd | Data compression system |
JPS5666971A (en) * | 1979-11-05 | 1981-06-05 | Dainippon Screen Mfg Co Ltd | Picture data compressing method |
JPS5989469U (ja) * | 1982-12-03 | 1984-06-16 | 株式会社オ−エム製作所 | ジヤケツト形成用の中子板 |
US4794461A (en) * | 1986-09-10 | 1988-12-27 | Netexpress Systems, Inc. | Method and apparatus for block coding vertical mode codes for enhanced compression of image data |
JP2670273B2 (ja) * | 1987-09-30 | 1997-10-29 | 株式会社東芝 | 画像処理装置 |
-
1989
- 1989-07-27 JP JP1194619A patent/JPH088642B2/ja not_active Expired - Fee Related
-
1990
- 1990-07-25 EP EP90308177A patent/EP0410739B1/de not_active Expired - Lifetime
- 1990-07-25 DE DE69026320T patent/DE69026320T2/de not_active Expired - Fee Related
- 1990-07-27 US US07/558,445 patent/US5177622A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP0410739A2 (de) | 1991-01-30 |
JPH0358574A (ja) | 1991-03-13 |
EP0410739B1 (de) | 1996-04-03 |
EP0410739A3 (en) | 1992-06-03 |
US5177622A (en) | 1993-01-05 |
JPH088642B2 (ja) | 1996-01-29 |
DE69026320T2 (de) | 1996-09-05 |
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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 |