KR20100045917A - 화상처리장치 및 화상처리방법 - Google Patents

화상처리장치 및 화상처리방법 Download PDF

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Publication number
KR20100045917A
KR20100045917A KR1020090098053A KR20090098053A KR20100045917A KR 20100045917 A KR20100045917 A KR 20100045917A KR 1020090098053 A KR1020090098053 A KR 1020090098053A KR 20090098053 A KR20090098053 A KR 20090098053A KR 20100045917 A KR20100045917 A KR 20100045917A
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KR
South Korea
Prior art keywords
image data
pixels
output
unit
output pixel
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Ceased
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KR1020090098053A
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English (en)
Korean (ko)
Inventor
유우지 타카야마
히사시 이시카와
토모유키 사이키
고 아라키
Original Assignee
캐논 가부시끼가이샤
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Application filed by 캐논 가부시끼가이샤 filed Critical 캐논 가부시끼가이샤
Publication of KR20100045917A publication Critical patent/KR20100045917A/ko
Ceased legal-status Critical Current

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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
    • H04N1/40—Picture signal circuits
    • H04N1/407—Control or modification of tonal gradation or of extreme levels, e.g. background level
    • 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
    • H04N1/4051—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size
    • H04N1/4052—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a dispersed dots halftone pattern, the dots having substantially the same size by error diffusion, i.e. transferring the binarising error to neighbouring dot decisions
    • 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
    • H04N1/4055—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern
    • H04N1/4056—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels producing a clustered dots or a size modulated halftone pattern the pattern varying in one dimension only, e.g. dash length, pulse width modulation [PWM]

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color, Gradation (AREA)
KR1020090098053A 2008-10-24 2009-10-15 화상처리장치 및 화상처리방법 Ceased KR20100045917A (ko)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JPJP-P-2008-274866 2008-10-24
JP2008274866A JP5254740B2 (ja) 2008-10-24 2008-10-24 画像処理装置および画像処理方法

Publications (1)

Publication Number Publication Date
KR20100045917A true KR20100045917A (ko) 2010-05-04

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ID=41558178

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020090098053A Ceased KR20100045917A (ko) 2008-10-24 2009-10-15 화상처리장치 및 화상처리방법

Country Status (5)

Country Link
US (1) US20100103464A1 (enExample)
EP (1) EP2180687A1 (enExample)
JP (1) JP5254740B2 (enExample)
KR (1) KR20100045917A (enExample)
CN (1) CN101729740B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8836733B2 (en) 2010-12-24 2014-09-16 Samsung Display Co., Ltd. Gamma voltage controller, gradation voltage generator, and display device including them

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JP5573451B2 (ja) * 2010-07-21 2014-08-20 コニカミノルタ株式会社 画像処理装置及び画像処理方法
CN102567971B (zh) * 2012-01-04 2013-12-18 上海理工大学 一种多级误差扩散半色调的修正方法
JP7190661B2 (ja) * 2019-02-06 2022-12-16 パナソニックＩｐマネジメント株式会社 画像処理装置、画像処理方法および画像処理システム
TWI786497B (zh) * 2020-12-22 2022-12-11 宏正自動科技股份有限公司 影像輸出裝置、影像接收裝置及影像傳輸方法

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8836733B2 (en) 2010-12-24 2014-09-16 Samsung Display Co., Ltd. Gamma voltage controller, gradation voltage generator, and display device including them

Also Published As

Publication number Publication date
CN101729740B (zh) 2012-06-13
EP2180687A1 (en) 2010-04-28
JP2010103861A (ja) 2010-05-06
US20100103464A1 (en) 2010-04-29
CN101729740A (zh) 2010-06-09
JP5254740B2 (ja) 2013-08-07

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