DE3670939D1 - Verfahren zur raumschwellwertbildung eines bildes abgesonderter farben. - Google Patents

Verfahren zur raumschwellwertbildung eines bildes abgesonderter farben.

Info

Publication number
DE3670939D1
DE3670939D1 DE8686107009T DE3670939T DE3670939D1 DE 3670939 D1 DE3670939 D1 DE 3670939D1 DE 8686107009 T DE8686107009 T DE 8686107009T DE 3670939 T DE3670939 T DE 3670939T DE 3670939 D1 DE3670939 D1 DE 3670939D1
Authority
DE
Germany
Prior art keywords
creating
image
separate colors
colors
separate
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
DE8686107009T
Other languages
English (en)
Inventor
William Karl Stelzenmuller
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Application granted granted Critical
Publication of DE3670939D1 publication Critical patent/DE3670939D1/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
    • H04N19/00—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals
    • H04N19/90—Methods or arrangements for coding, decoding, compressing or decompressing digital video signals using coding techniques not provided for in groups H04N19/10-H04N19/85, e.g. fractals
    • H04N19/93—Run-length coding
DE8686107009T 1985-06-20 1986-05-23 Verfahren zur raumschwellwertbildung eines bildes abgesonderter farben. Expired - Fee Related DE3670939D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/747,094 US4673977A (en) 1985-06-20 1985-06-20 Method of spatially thresholding a discrete color image

Publications (1)

Publication Number Publication Date
DE3670939D1 true DE3670939D1 (de) 1990-06-07

Family

ID=25003634

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8686107009T Expired - Fee Related DE3670939D1 (de) 1985-06-20 1986-05-23 Verfahren zur raumschwellwertbildung eines bildes abgesonderter farben.

Country Status (5)

Country Link
US (1) US4673977A (de)
EP (1) EP0205944B1 (de)
JP (1) JPS61295780A (de)
CA (1) CA1299736C (de)
DE (1) DE3670939D1 (de)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8708010D0 (en) * 1987-04-03 1987-05-07 Crosfield Electronics Ltd Image reprocessing
JP2632351B2 (ja) * 1988-03-25 1997-07-23 キヤノン株式会社 カラー画像処理装置
US5073956A (en) * 1988-10-25 1991-12-17 Brother Kogyo Kabushiki Kaisha Apparatus for converting image outline data into dot data representative of dots to be formed
JP2637591B2 (ja) * 1990-01-22 1997-08-06 松下電器産業株式会社 位置認識装置及びその方法
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
US5781196A (en) * 1990-10-19 1998-07-14 Eidos Plc Of The Boat House Video compression by extracting pixel changes exceeding thresholds
US5359432A (en) * 1991-11-25 1994-10-25 Lexmark International, Inc. Printer page composition with color and text
GB2263834B (en) * 1992-01-16 1995-08-16 Sony Broadcast & Communication Image data compression
US5426514A (en) * 1992-03-20 1995-06-20 Xerox Corporation Method of gray scaling facsimile images
US6002809A (en) * 1993-04-15 1999-12-14 International Business Machines Corporation Digital image processor for image scaling
KR100228028B1 (ko) * 1993-10-29 1999-11-01 니시무로 타이죠 다종 언어 대응형 기록매체 및 재생장치
US5465118A (en) * 1993-12-17 1995-11-07 International Business Machines Corporation Luminance transition coding method for software motion video compression/decompression
CA2144793C (en) * 1994-04-07 1999-01-12 Lawrence Patrick O'gorman Method of thresholding document images
EP0679017B1 (de) * 1994-04-22 1999-10-20 Victor Company Of Japan, Ltd. Kompressions- und Dekompressionsverfahren für mehrdimensionale mehrwertige Farbbilder
US5721720A (en) * 1994-12-28 1998-02-24 Kabushiki Kaisha Toshiba Optical recording medium recording pixel data as a compressed unit data block
US6009202A (en) * 1994-12-28 1999-12-28 Kabushiki Kaisha Toshiba Image information encoding/decoding system
PT754393E (pt) * 1995-02-03 2000-09-29 Koninkl Philips Electronics Nv Codificacao de cores de imagens de video
US5619591A (en) * 1995-08-23 1997-04-08 Vtech Electronics, Ltd. Encoding and decoding color image data based on mean luminance and an upper and a lower color value
JP4242796B2 (ja) * 2004-03-12 2009-03-25 パナソニック株式会社 画像認識方法及び画像認識装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5420609A (en) * 1977-07-18 1979-02-16 Hitachi Ltd Color graphic codinh circuit
US4189711A (en) * 1977-11-08 1980-02-19 Bell Telephone Laboratories, Incorporated Multilevel processing of image signals
JPS57164662A (en) * 1981-04-03 1982-10-09 Hitachi Ltd Compression system for multilevel signal
JPS5821985A (ja) * 1981-08-03 1983-02-09 Nippon Telegr & Teleph Corp <Ntt> 画像情報の伝送表示方式
JPS5840989A (ja) * 1981-09-04 1983-03-10 Nippon Telegr & Teleph Corp <Ntt> 画像情報の符号化処理方法および伝送制御方法
NL8105256A (nl) * 1981-11-20 1983-06-16 Philips Nv Inrichting voor het dynamisch instellen van een discriminatiedrempel zwart/wit bij het bewerken van beelden met grijsheidswaarden.
JPS58148565A (ja) * 1982-02-26 1983-09-03 Mitsubishi Electric Corp 多階調画像信号の符号化方法
JPS58215869A (ja) * 1982-06-07 1983-12-15 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション グレ−スケ−ル映像デ−タを縮少する方法
US4517604A (en) * 1983-04-04 1985-05-14 International Business Machines Corporation Method for reducing line width variations in bilevel video images

Also Published As

Publication number Publication date
US4673977A (en) 1987-06-16
EP0205944A3 (en) 1988-09-14
EP0205944A2 (de) 1986-12-30
JPS61295780A (ja) 1986-12-26
JPH0353836B2 (de) 1991-08-16
CA1299736C (en) 1992-04-28
EP0205944B1 (de) 1990-05-02

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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