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KR890004544A - Pixel density converter - Google Patents

Pixel density converter Download PDF

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Publication number
KR890004544A
KR890004544A KR1019880010496A KR880010496A KR890004544A KR 890004544 A KR890004544 A KR 890004544A KR 1019880010496 A KR1019880010496 A KR 1019880010496A KR 880010496 A KR880010496 A KR 880010496A KR 890004544 A KR890004544 A KR 890004544A
Authority
KR
South Korea
Prior art keywords
pixel density
random number
pixels
density converter
pixel
Prior art date
Application number
KR1019880010496A
Other languages
Korean (ko)
Other versions
KR920001819B1 (en
Inventor
유키오 츠다
Original Assignee
아오이 죠이치
가부시키가이샤 도시바
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 아오이 죠이치, 가부시키가이샤 도시바 filed Critical 아오이 죠이치
Publication of KR890004544A publication Critical patent/KR890004544A/en
Application granted granted Critical
Publication of KR920001819B1 publication Critical patent/KR920001819B1/en

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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
    • H04N1/40—Picture signal circuits
    • H04N1/40087—Multi-toning, i.e. converting a continuous-tone signal for reproduction with more than two discrete brightnesses or optical densities, e.g. dots of grey and black inks on white paper
    • 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
    • H04N1/40—Picture signal circuits
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels

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  • Physics & Mathematics (AREA)
  • Discrete Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Editing Of Facsimile Originals (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

내용 없음.No content.

Description

화소밀도 변환 장치Pixel density converter

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제 1 도는 본 발명에 따른 화소밀도 변환정치의 구성을 나타낸 기능 블록도,1 is a functional block diagram showing a configuration of pixel density conversion politics according to the present invention;

제 2 도는 본 발명의 화소밀도 변환장치를 적용한 팩시밀리 장치의 구성을 나타낸 회로 블록도.2 is a circuit block diagram showing the configuration of a facsimile apparatus to which the pixel density converter of the present invention is applied.

Claims (1)

화소화된 화상데이터를 소정의 복수화소마다 이 복수화소 보다도 적은 수의 일정화소씩 솎아내거나 추가함으로써 화상의 화소 밀도를 변환하는 화소밀도 변환장치에 있어서, 난수를 발생시키는 난수발생수단（A）과, 이 난수발생수단（A）에 의해 발생하는 난수에 따른 상기 소정의 복수화소 중에서 솎아내거나 추가하는 화소의 위치를 지정하는 화소밀도 변환수단（B）을 구비하여 구성된 것을 특징으로 하는 화소밀도 변환장치.In the pixel density conversion device for converting pixel density of an image by subtracting or adding pixelated image data by a predetermined number of pixels smaller than the plurality of pixels, the random number generating means (A) for generating random numbers and And pixel density converting means (B) for designating a position of a pixel to be removed or added from among the predetermined plurality of pixels according to the random number generated by the random number generating means (A). . ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019880010496A 1987-08-18 1988-08-18 Picture cell density changing device KR920001819B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP62-203401 1987-08-18
JP62203401A JPS6447167A (en) 1987-08-18 1987-08-18 Picture element density conversion system

Publications (2)

Publication Number Publication Date
KR890004544A true KR890004544A (en) 1989-04-22
KR920001819B1 KR920001819B1 (en) 1992-03-03

Family

ID=16473442

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019880010496A KR920001819B1 (en) 1987-08-18 1988-08-18 Picture cell density changing device

Country Status (2)

Country Link
JP (1) JPS6447167A (en)
KR (1) KR920001819B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4003803B1 (en) 2006-10-13 2007-11-07 富士ゼロックス株式会社 Image processing apparatus, image forming apparatus, and program
JP5701030B2 (en) * 2010-12-06 2015-04-15 キヤノン株式会社 Image processing apparatus, image processing method, and computer program

Also Published As

Publication number Publication date
KR920001819B1 (en) 1992-03-03
JPS6447167A (en) 1989-02-21

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