KR850007354A - 중간조 화면정보의 부호화전송방식 - Google Patents

중간조 화면정보의 부호화전송방식 Download PDF

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Publication number
KR850007354A
KR850007354A KR1019850002588A KR850002588A KR850007354A KR 850007354 A KR850007354 A KR 850007354A KR 1019850002588 A KR1019850002588 A KR 1019850002588A KR 850002588 A KR850002588 A KR 850002588A KR 850007354 A KR850007354 A KR 850007354A
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KR
South Korea
Prior art keywords
screen information
processed
transmission method
halftone screen
signal
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Application number
KR1019850002588A
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English (en)
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KR890004438B1 (ko
Inventor
아끼라 하세가와
Original Assignee
사바 쇼오이찌
가부시기 가이샤 도오시바
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Publication of KR850007354A publication Critical patent/KR850007354A/ko
Application granted granted Critical
Publication of KR890004438B1 publication Critical patent/KR890004438B1/ko

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    • 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
    • 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
    • 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
    • H04N1/411—Bandwidth or redundancy reduction for the transmission or storage or reproduction of two-tone pictures, e.g. black and white pictures

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Compression, Expansion, Code Conversion, And Decoders (AREA)
  • Image Processing (AREA)

Abstract

내용 없음

Description

중간조 화면정보의 부호화전송방식
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도는 본 발명의 부호화 전송방식을 적용시킨 신호처리 장치의 구성을 나타내는 블록도. 제3도는 본 발명에 따른 송신축 상관처리회로의 회로구성도. 제4도는 본 발명에 따른 수신측 상관처리회로의 회로구성도.
1 : 부호학부, 2 : 휘점처리부, 3 : 상관처리부, 4 : 부호화회로 5 : 복호화부, 6 : 복호화회로, 7 : 상관처리회로, 31,72 : 쉬프트레지스터, 32,71 : 배타논리회로(EX-OR회로), 33,73 : 앤드게이트, CLK : 클록신호, CLR : 클리어신호.

Claims (2)

  1. 아날로그화면신호를 M(화소점)×N(주사선)의 매트릭스로 휘점처리한 다음, 처리되어진 디지탈신호를 전송하게 되는 중간조 화면정보의 부호화 전송방식에 있어서, 매트릭스로 휘점처리된 각 화면정보 블록마다 변화시킬 수 있는 블록중(i,j)변째의 디지탈 신호(1iM, 1jN)의 신호변화정보를 부호화시켜 전송하는 것을 특징으로 하는 중간조 화면정보의 부호화전송방식.
  2. 제1항에 있어서, 연속되는 화면정보 블록증 각각 (i,j)번째의 디지탈 신호가 베타논리적으로 처리되어 신호변화 정보가 생성되도록 된 것을 특징으로 하는 중간조 화면정보의 부호와 전송방식.
    ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
KR1019850002588A 1984-04-27 1985-04-17 중간조 화면정보의 부호화 전송방식 KR890004438B1 (ko)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP59085644A JPH069375B2 (ja) 1984-04-27 1984-04-27 中間調画情報の符号化伝送方式
JP59-85644 1984-04-27
JP85644 1984-04-27

Publications (2)

Publication Number Publication Date
KR850007354A true KR850007354A (ko) 1985-12-02
KR890004438B1 KR890004438B1 (ko) 1989-11-03

Family

ID=13864526

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850002588A KR890004438B1 (ko) 1984-04-27 1985-04-17 중간조 화면정보의 부호화 전송방식

Country Status (3)

Country Link
US (1) US4667251A (ko)
JP (1) JPH069375B2 (ko)
KR (1) KR890004438B1 (ko)

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Publication number Priority date Publication date Assignee Title
JPS6187471A (ja) * 1984-09-17 1986-05-02 Canon Inc 画像処理システム
US4729034A (en) * 1985-06-27 1988-03-01 Netexpress Systems, Inc. Method and apparatus for selection of a coding reference line for two-dimensional coding of image data representing screened images
JPS62181576A (ja) * 1986-02-05 1987-08-08 Fuji Photo Film Co Ltd 放射線画像情報圧縮方法
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
JPH077461B2 (ja) * 1986-11-14 1995-01-30 コニカ株式会社 画像推定方法
US5175807A (en) * 1986-12-04 1992-12-29 Quantel Limited Video signal processing with added probabilistic dither
JPH0434669A (ja) * 1990-05-31 1992-02-05 Toshiba Corp 画像処理方式
US5057917A (en) * 1990-06-20 1991-10-15 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Real-time data compression of broadcast video signals
US5812279A (en) * 1990-11-10 1998-09-22 Minolta Co., Ltd. Facsimile machine capable of efficient transmission processing
US5185674A (en) * 1992-04-03 1993-02-09 Eastman Kodak Company Binary resolution decimation method and apparatus
KR940017695A (ko) * 1992-12-09 1994-07-27 정용문 블럭간의 유사성을 고려한 중간조 화상의 부호화 방법
US5553200A (en) * 1995-03-03 1996-09-03 Electronics For Imaging, Inc. Method and apparatus for providing bit-rate reduction and reconstruction of image data using dither arrays
EP1722549A4 (en) * 2004-02-10 2007-04-18 Seiko Epson Corp PICTURE DISTRIBUTION SYSTEM FOR PUBLISHING AN IMAGE BASED ON INFORMATION ABOUT NUMBER OF POINTS TO BE MADE IN A PREFERRED AREA
JP4241823B2 (ja) * 2004-05-19 2009-03-18 セイコーエプソン株式会社 ドットデータ処理装置、画像出力システムおよびそれらの方法
AU2005245026B2 (en) 2004-05-21 2010-07-01 Accu-Break Technologies, Inc. Immediate release pharmaceutical tablets with height greater than width
US8848250B2 (en) * 2012-10-23 2014-09-30 Kyocera Document Solutions Inc. Compression of halftoned digital images

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1162398B (de) * 1961-10-24 1964-02-06 Ibm Verdichter fuer Daten, die aus Bits verschiedener Wertigkeit bestehen
US3185824A (en) * 1961-10-24 1965-05-25 Ibm Adaptive data compactor
US3502806A (en) * 1966-08-01 1970-03-24 Xerox Corp Modified run length data reduction system
JPS5227970B2 (ko) * 1971-12-24 1977-07-23
US3967052A (en) * 1975-07-17 1976-06-29 Bell Telephone Laboratories, Incorporated Image transmission method and apparatus
JPS5721167A (en) * 1980-07-15 1982-02-03 Fujitsu Ltd Video data processing system
CA1175556A (en) * 1981-02-24 1984-10-02 Kazumoto Iinuma System for transmitting a video signal with short runs avoided in a signal encoded from the video signal
JPS57140070A (en) * 1981-02-24 1982-08-30 Nec Corp Decoder for picture signal
JPS58138176A (ja) * 1982-02-12 1983-08-16 Kokusai Denshin Denwa Co Ltd <Kdd> 多レベルの階調を有する画像の符号化方式
JPS5937774A (ja) * 1982-08-26 1984-03-01 Nec Corp 画像信号の符号化方法および装置

Also Published As

Publication number Publication date
US4667251A (en) 1987-05-19
JPS60229573A (ja) 1985-11-14
JPH069375B2 (ja) 1994-02-02
KR890004438B1 (ko) 1989-11-03

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