JPH0473667B2 - - Google Patents

Info

Publication number
JPH0473667B2
JPH0473667B2 JP59242570A JP24257084A JPH0473667B2 JP H0473667 B2 JPH0473667 B2 JP H0473667B2 JP 59242570 A JP59242570 A JP 59242570A JP 24257084 A JP24257084 A JP 24257084A JP H0473667 B2 JPH0473667 B2 JP H0473667B2
Authority
JP
Japan
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 - Lifetime
Application number
JP59242570A
Other versions
JPS60146326A (en
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
Priority to US06/567,218 priority Critical patent/US4610027A/en
Application filed filed Critical
Publication of JPS60146326A publication Critical patent/JPS60146326A/ja
Publication of JPH0473667B2 publication Critical patent/JPH0473667B2/ja
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

Links

Classifications

    • HELECTRICITY
    • H03BASIC ELECTRONIC CIRCUITRY
    • H03MCODING; DECODING; CODE CONVERSION IN GENERAL
    • H03M7/00Conversion of a code where information is represented by a given sequence or number of digits to a code where the same, similar or subset of information is represented by a different sequence or number of digits
    • H03M7/30Compression; Expansion; Suppression of unnecessary data, e.g. redundancy reduction
    • H03M7/46Conversion to or from run-length codes, i.e. by representing the number of consecutive digits, or groups of digits, of the same kind by a code word and a digit indicative of that kind
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N1/00Scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission; Details thereof
    • H04N1/41Bandwidth or redundancy reduction
    • H04N1/411Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures
    • H04N1/413Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information
    • H04N1/419Systems or arrangements allowing the picture to be reproduced without loss or modification of picture-information in which encoding of the length of a succession of picture-elements of the same value along a scanning line is the only encoding step
JP59242570A 1983-12-30 1984-11-19 Expired - Lifetime JPH0473667B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US06/567,218 US4610027A (en) 1983-12-30 1983-12-30 Method for converting a bit map of an image to a run length or run end representation

Publications (2)

Publication Number Publication Date
JPS60146326A JPS60146326A (en) 1985-08-02
JPH0473667B2 true JPH0473667B2 (ja) 1992-11-24

Family

ID=24266234

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59242570A Expired - Lifetime JPH0473667B2 (ja) 1983-12-30 1984-11-19

Country Status (5)

Country Link
US (1) US4610027A (ja)
EP (1) EP0149122B1 (ja)
JP (1) JPH0473667B2 (ja)
CA (1) CA1232356A (ja)
DE (1) DE3484136D1 (ja)

Families Citing this family (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0148413B1 (de) * 1983-12-19 1988-06-22 WILLI STUDER AG Fabrik für elektronische Apparate Verfahren und Vorrichtung zur Wiedergabe von digitalisierten Signalen, die als binäre Signale in Form von Pulsen übertragen werden
JPS60198966A (en) * 1984-03-22 1985-10-08 Fujitsu Ltd Code data processing system
US4646356A (en) * 1984-06-29 1987-02-24 International Business Machines Corporation Method for converting a bit map of an image to a run length or run end representation
DE3689893D1 (de) * 1985-08-08 1994-07-14 Canon Kk Gerät zum Dekodieren eines Bildkodes.
US4783834A (en) * 1987-02-20 1988-11-08 International Business Machines Corporation System for creating transposed image data from a run end or run length representation of an image
US4870498A (en) * 1987-09-15 1989-09-26 Printware, Inc. Decompressing run-length-encoded to transition-encoded font image information in an image generator
JP2672521B2 (ja) * 1987-09-21 1997-11-05 株式会社東芝 画像処理方法
US4866784A (en) * 1987-12-02 1989-09-12 Eastman Kodak Company Skew detector for digital image processing system
US4813056A (en) * 1987-12-08 1989-03-14 General Electric Company Modified statistical coding of digital signals
US5095512A (en) * 1988-10-24 1992-03-10 Netexpress Systems, Inc. Method and apparatus for manipulating image data employing an intermediate format
US5532694A (en) * 1989-01-13 1996-07-02 Stac Electronics, Inc. Data compression apparatus and method using matching string searching and Huffman encoding
US5146221A (en) * 1989-01-13 1992-09-08 Stac, Inc. Data compression apparatus and method
US5049880A (en) * 1990-04-02 1991-09-17 Tektronix, Inc. Bit-wise run-length encoding for data compression
JPH05130434A (ja) * 1991-10-31 1993-05-25 Canon Inc 画像圧縮装置
JP2959916B2 (ja) * 1992-10-28 1999-10-06 松下電器産業株式会社 デジタル・ビデオ・コーダ用のバーサタイルなエスケープ・ラン・レベル・コーダ
US5363098A (en) * 1993-10-25 1994-11-08 Digital Equipment Corporation Byte aligned data compression
JP2836467B2 (ja) * 1993-12-16 1998-12-14 日本電気株式会社 2値シンボルの符号化・復号化回路
GB2290430B (en) * 1994-06-09 1998-08-05 Screen Subtitling Systems Ltd Subtitling video data
PT754393E (pt) * 1995-02-03 2000-09-29 Koninkl Philips Electronics Nv Codificacao de cores de imagens de video
US6941019B1 (en) 2000-05-10 2005-09-06 International Business Machines Corporation Reentry into compressed data
US7146053B1 (en) 2000-05-10 2006-12-05 International Business Machines Corporation Reordering of compressed data
DE10205546B4 (de) * 2002-02-11 2006-01-12 Nexpress Solutions Llc Verfahren zur Datenkomprimierung von Bildmaskendaten
EP1988703A1 (en) * 2007-05-02 2008-11-05 TTPCOM Limited Image transformation
CN101697116B (zh) * 2009-10-27 2011-11-09 飞天诚信科技股份有限公司 数据变换方法及装置

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5761379A (en) * 1980-09-30 1982-04-13 Ricoh Co Ltd Encoding or decoding device
JPS57197961A (en) * 1981-03-11 1982-12-04 Fujitsu Ltd Conversion system for image data
JPS5836073A (en) * 1981-08-27 1983-03-02 Kokusai Denshin Denwa Co Ltd <Kdd> Pair run encoding system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3980809A (en) * 1973-07-16 1976-09-14 International Business Machines Corporation Encoding logic for reduced bandwidth pictorial data transmission system
DE2552751B1 (de) * 1975-11-25 1977-03-31 Hell Rudolf Dr Ing Gmbh Verfahren zur digitalen Lauflaengencodierung mit Redundanzreduktion fuer die UEbertragung von binaer codierten Bildinformationen
JPS53134340A (en) * 1977-04-28 1978-11-22 Ricoh Co Ltd Run length coding system
JPS6346628B2 (ja) * 1979-07-09 1988-09-16 Ricoh Kk
US4327379A (en) * 1980-04-11 1982-04-27 Xerox Corporation Hardware implementation of 4-pixel code encoder
US4386373A (en) * 1980-07-18 1983-05-31 Ricoh Company, Ltd. Facsimile apparatus
KR850001657B1 (ko) * 1981-03-06 1985-11-06 야마모도 다꾸마 영상(影像) 데이터 변환법 및 문자 코우드와 문자패턴 변환장치

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5761379A (en) * 1980-09-30 1982-04-13 Ricoh Co Ltd Encoding or decoding device
JPS57197961A (en) * 1981-03-11 1982-12-04 Fujitsu Ltd Conversion system for image data
JPS5836073A (en) * 1981-08-27 1983-03-02 Kokusai Denshin Denwa Co Ltd <Kdd> Pair run encoding system

Also Published As

Publication number Publication date
DE3484136D1 (de) 1991-03-28
EP0149122A2 (en) 1985-07-24
US4610027A (en) 1986-09-02
EP0149122A3 (en) 1987-07-15
EP0149122B1 (en) 1991-02-20
CA1232356A (en) 1988-02-02
CA1232356A1 (ja)
JPS60146326A (en) 1985-08-02

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