DE3876472D1 - Bildverarbeitung. - Google Patents

Bildverarbeitung.

Info

Publication number
DE3876472D1
DE3876472D1 DE8888302697T DE3876472T DE3876472D1 DE 3876472 D1 DE3876472 D1 DE 3876472D1 DE 8888302697 T DE8888302697 T DE 8888302697T DE 3876472 T DE3876472 T DE 3876472T DE 3876472 D1 DE3876472 D1 DE 3876472D1
Authority
DE
Germany
Prior art keywords
image processing
image
processing
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
Application number
DE8888302697T
Other languages
English (en)
Other versions
DE3876472T2 (de
Inventor
Peter William Stansfield
Alastair Reed
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Crosfield Electronics Ltd
Original Assignee
Crosfield Electronics Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Crosfield Electronics Ltd filed Critical Crosfield Electronics Ltd
Application granted granted Critical
Publication of DE3876472D1 publication Critical patent/DE3876472D1/de
Publication of DE3876472T2 publication Critical patent/DE3876472T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
DE8888302697T 1987-04-03 1988-03-25 Bildverarbeitung. Expired - Fee Related DE3876472T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB878708010A GB8708010D0 (en) 1987-04-03 1987-04-03 Image reprocessing

Publications (2)

Publication Number Publication Date
DE3876472D1 true DE3876472D1 (de) 1993-01-21
DE3876472T2 DE3876472T2 (de) 1993-04-15

Family

ID=10615190

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8888302697T Expired - Fee Related DE3876472T2 (de) 1987-04-03 1988-03-25 Bildverarbeitung.

Country Status (5)

Country Link
US (1) US4965754A (de)
EP (1) EP0286286B1 (de)
JP (1) JPS642475A (de)
DE (1) DE3876472T2 (de)
GB (1) GB8708010D0 (de)

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US4974071A (en) * 1987-04-28 1990-11-27 Canon Kabushiki Kaisha Color image data encoding apparatus having improved resolution/efficiency characteristics
GB8900368D0 (en) * 1989-01-09 1989-03-08 Crosfield Electronics Ltd Bit map modification
US5353132A (en) * 1989-02-06 1994-10-04 Canon Kabushiki Kaisha Image processing device
DE69131260T2 (de) * 1990-03-15 1999-11-04 Canon Kk Verfahren und Gerät zur Bildkommunikation
US5047853A (en) * 1990-03-16 1991-09-10 Apple Computer, Inc. Method for compresssing and decompressing color video data that uses luminance partitioning
US5046119A (en) * 1990-03-16 1991-09-03 Apple Computer, Inc. Method and apparatus for compressing and decompressing color video data with an anti-aliasing mode
GB9009722D0 (en) * 1990-05-01 1990-06-20 Crosfield Electronics Ltd Improvements relating to colour vignettes
US5276898A (en) * 1990-07-26 1994-01-04 International Business Machines Corporation System for selectively compressing data frames based upon a current processor work load identifying whether the processor is too busy to perform the compression
US5020121A (en) * 1990-08-16 1991-05-28 Hewlett-Packard Company Neighborhood block prediction bit compression
US5049992A (en) * 1990-08-27 1991-09-17 Zenith Electronics Corporation HDTV system with receivers operable at different levels of resolution
US5247589A (en) * 1990-09-26 1993-09-21 Radius Inc. Method for encoding color images
US5070532A (en) * 1990-09-26 1991-12-03 Radius Inc. Method for encoding color images
EP0517912A1 (de) * 1990-12-31 1992-12-16 E.I. Du Pont De Nemours And Company Verfahren zur änderung der grösse eines bildes, entwicklung eines filters dafür und abbildung des ausgabebildes auf das eingabebild
JP3187852B2 (ja) * 1991-02-08 2001-07-16 ソニー株式会社 高能率符号化方法
US5838834A (en) * 1991-11-07 1998-11-17 Canon Kabushiki Kaisha Image processing apparatus and method for quantizing image data and quantization errors using single quantizing unit and pluralities of quantization tables
US5367674A (en) * 1991-12-13 1994-11-22 International Business Machines Corporation Data stream optimizer utilizing difference coding between a current state buffer and a next state buffer
US5416856A (en) * 1992-03-30 1995-05-16 The United States Of America As Represented By The Secretary Of The Navy Method of encoding a digital image using iterated image transformations to form an eventually contractive map
EP0567697A1 (de) * 1992-04-29 1993-11-03 Yiu Keung Chan Methode für Bildkompression im Raumbereich
ES2278378T3 (es) * 1992-06-09 2007-08-01 Canon Kabushiki Kaisha Aparato de codificacion.
EP0586074B1 (de) * 1992-07-31 2001-11-14 Canon Kabushiki Kaisha Bildverarbeitungsgerät und Verfahren zur mehrstufigen Kompression
US6028961A (en) * 1992-07-31 2000-02-22 Canon Kabushiki Kaisha Image processing method and apparatus
JP3466705B2 (ja) * 1993-05-28 2003-11-17 ゼロックス・コーポレーション 圧縮画像の圧縮解除方法
US5465118A (en) * 1993-12-17 1995-11-07 International Business Machines Corporation Luminance transition coding method for software motion video compression/decompression
US5553160A (en) * 1994-09-01 1996-09-03 Intel Corporation Method and apparatus for dynamically selecting an image compression process based on image size and color resolution
US5625712A (en) * 1994-12-14 1997-04-29 Management Graphics, Inc. Iterative compression of digital images
US6115496A (en) * 1995-03-02 2000-09-05 Apple Computer, Inc. Method and apparatus for accelerating image data compression
US5625759A (en) * 1995-05-08 1997-04-29 Novalogic, Inc. Real-time video and animation playback process
US5602550A (en) * 1995-06-19 1997-02-11 Bio-Logic Systems Corp. Apparatus and method for lossless waveform data compression
US5982937A (en) 1996-12-24 1999-11-09 Electronics For Imaging, Inc. Apparatus and method for hybrid compression of raster data
US6091850A (en) * 1997-04-30 2000-07-18 Fujitsu Microelectronics, Inc. Method of compressing and decompressing graphic images
US6289118B1 (en) * 1998-04-03 2001-09-11 Magnifi, Inc. Method and apparatus for choosing a compression algorithm
US6373890B1 (en) 1998-05-05 2002-04-16 Novalogic, Inc. Video compression and playback process
US6304339B1 (en) 1998-11-16 2001-10-16 Hewlett-Packard Company Compound document page data processing
US6483941B1 (en) * 1999-09-10 2002-11-19 Xerox Corporation Crominance channel overshoot control in image enhancement
US6972868B1 (en) 2000-11-09 2005-12-06 Hewlett-Packard Development Company, L.P. Image data compression method
US6701020B2 (en) 2001-03-15 2004-03-02 Hewlett-Packard Development Company, L.P. JADE-JPEG based adaptive document compression engine
US6744919B2 (en) 2001-07-24 2004-06-01 Hewlett Packard Development Company, L.P. Classification of blocks for compression based on number of distinct colors
US7017053B2 (en) * 2002-01-04 2006-03-21 Ati Technologies, Inc. System for reduced power consumption by monitoring video content and method thereof
DE50304049D1 (de) * 2003-04-19 2006-08-10 Frech Oskar Gmbh & Co Kg Sprühelement für einen Sprühkopf
US8203617B2 (en) * 2003-11-05 2012-06-19 Telefonaktiebolaget Lm Ericsson (Publ) Apparatus and method for increasing coding efficiency with an adaptive pre-filter

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Publication number Priority date Publication date Assignee Title
US4103287A (en) * 1973-12-17 1978-07-25 Bell Telephone Laboratories, Incorporated Variable length codes for high quality image encoding
US4224678A (en) * 1976-04-05 1980-09-23 Northrop Corporation Method and apparatus for implementing a processor based on the rationalized Haar transform for the purpose of real time compression of video data
US4191974A (en) * 1977-02-08 1980-03-04 Mitsubishi Denki Kabushiki Kaisha Facsimile encoding communication system
US4225850A (en) * 1978-11-15 1980-09-30 Rockwell International Corporation Non-fingerprint region indicator
US4300122A (en) * 1979-04-02 1981-11-10 Sperry Corporation Apparatus for processing digital data representative of a two-dimensional image
US4364024A (en) * 1979-12-07 1982-12-14 International Business Machines Corporation Signature presentation method and apparatus
GB2103449B (en) * 1981-06-29 1985-05-30 Nippon Telegraph & Telephone Method and apparatus for gray level signal processing
JPS58215882A (ja) * 1982-06-07 1983-12-15 インタ−ナシヨナル　ビジネス　マシ−ンズ　コ−ポレ−シヨン ドキユメント分類方法
US4555802A (en) * 1983-01-10 1985-11-26 International Business Machines Corporation Compaction and decompaction of non-coded information bearing signals
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
NL8403078A (nl) * 1984-10-10 1986-05-01 Philips Nv Werkwijze voor het overdragen van informatie, codeerinrichting voor toepassing in de werkwijze en decodeerinrichting voor toepassing in de werkwijze.
JPS61102872A (ja) * 1984-10-24 1986-05-21 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション ２レベル・イメ−ジ・デ−タの処理方法
JPS61169086A (ja) * 1985-01-21 1986-07-30 Nippon Telegr & Teleph Corp <Ntt> 中間調画像の符号化装置
US4673977A (en) * 1985-06-20 1987-06-16 International Business Machines Corporation Method of spatially thresholding a discrete color image
JPS62100077A (ja) * 1985-10-28 1987-05-09 Nippon Telegr & Teleph Corp <Ntt> 符号化方法および装置
US4839738A (en) * 1987-04-22 1989-06-13 Advanced Micro Devices, Inc. Apparatus for decoding facsimile coded data to image data with coding and reference line windowing and color change detection

Also Published As

Publication number Publication date
GB8708010D0 (en) 1987-05-07
JPS642475A (en) 1989-01-06
EP0286286B1 (de) 1992-12-09
DE3876472T2 (de) 1993-04-15
EP0286286A1 (de) 1988-10-12
US4965754A (en) 1990-10-23

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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