JP4533330B2 - 画像形成装置及び画像形成方法 - Google Patents

画像形成装置及び画像形成方法 Download PDF

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Publication number
JP4533330B2
JP4533330B2 JP2006054624A JP2006054624A JP4533330B2 JP 4533330 B2 JP4533330 B2 JP 4533330B2 JP 2006054624 A JP2006054624 A JP 2006054624A JP 2006054624 A JP2006054624 A JP 2006054624A JP 4533330 B2 JP4533330 B2 JP 4533330B2
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Japan
Prior art keywords
value
class
gradation correction
gradation
limit value
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JP2006054624A
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English (en)
Japanese (ja)
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JP2006319953A (ja
JP2006319953A5 (enExample
Inventor
光勢 杉本
泉 金井
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Canon Inc
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Canon Inc
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Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2006054624A priority Critical patent/JP4533330B2/ja
Priority to US11/398,619 priority patent/US20060227396A1/en
Publication of JP2006319953A publication Critical patent/JP2006319953A/ja
Publication of JP2006319953A5 publication Critical patent/JP2006319953A5/ja
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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
    • H04N1/4072—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original
    • H04N1/4074—Control or modification of tonal gradation or of extreme levels, e.g. background level dependent on the contents of the original using histograms

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  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Picture Signal Circuits (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
JP2006054624A 2005-04-12 2006-03-01 画像形成装置及び画像形成方法 Expired - Fee Related JP4533330B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2006054624A JP4533330B2 (ja) 2005-04-12 2006-03-01 画像形成装置及び画像形成方法
US11/398,619 US20060227396A1 (en) 2005-04-12 2006-04-06 Image forming apparatus and image forming method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005114220 2005-04-12
JP2006054624A JP4533330B2 (ja) 2005-04-12 2006-03-01 画像形成装置及び画像形成方法

Publications (3)

Publication Number Publication Date
JP2006319953A JP2006319953A (ja) 2006-11-24
JP2006319953A5 JP2006319953A5 (enExample) 2009-09-10
JP4533330B2 true JP4533330B2 (ja) 2010-09-01

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JP2006054624A Expired - Fee Related JP4533330B2 (ja) 2005-04-12 2006-03-01 画像形成装置及び画像形成方法

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US (1) US20060227396A1 (enExample)
JP (1) JP4533330B2 (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9846826B2 (en) 2013-06-28 2017-12-19 Ricoh Company, Ltd. Image processing to generate a tone curve for processing an image by associating a model parameter of the image with another model parameter of a reference image

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4551836B2 (ja) * 2005-07-29 2010-09-29 株式会社東芝 映像信号処理装置及び映像信号処理方法
JP4504284B2 (ja) * 2005-08-30 2010-07-14 株式会社東芝 映像信号処理装置及び映像信号処理方法
KR101416230B1 (ko) * 2007-09-17 2014-07-16 삼성전자주식회사 홀로그래픽 정보 기록/재생 장치, 기록/재생 방법 및홀로그래픽 정보 저장매체
WO2009093324A1 (ja) 2008-01-24 2009-07-30 Fujitsu Limited 画像処理装置、画像処理方法、画像処理プログラムおよび画像補正装置
JP4609559B2 (ja) * 2008-09-02 2011-01-12 ソニー株式会社 フィルタ装置、画像補正回路、画像表示装置および画像補正方法
JP5436020B2 (ja) 2009-04-23 2014-03-05 キヤノン株式会社 画像処理装置および画像処理方法
JP4795473B2 (ja) * 2009-06-29 2011-10-19 キヤノン株式会社 画像処理装置及びその制御方法
KR20150055503A (ko) 2013-11-13 2015-05-21 삼성전자주식회사 저전력 디스플레이를 위한 적응적 이미지 보상 방법 및 그 장치
KR101709087B1 (ko) * 2014-08-01 2017-02-23 삼성디스플레이 주식회사 타이밍 제어부, 이를 포함하는 표시 장치 및 이의 구동 방법
US10547832B2 (en) * 2016-05-18 2020-01-28 Canon Kabushiki Kaisha Image processing apparatus, method, and storage medium for executing gradation on stereoscopic images

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0799862B2 (ja) * 1991-03-22 1995-10-25 松下電器産業株式会社 階調補正装置
JP2924936B2 (ja) * 1992-12-28 1999-07-26 富士写真フイルム株式会社 画像処理方法および装置
JP3343146B2 (ja) * 1993-02-08 2002-11-11 富士写真フイルム株式会社 画像処理方法および装置
JPH07162715A (ja) * 1993-12-10 1995-06-23 Fujitsu General Ltd デジタルガンマ補正方法
JP3501252B2 (ja) * 1995-06-16 2004-03-02 三菱電機株式会社 階調補正装置
JP3424060B2 (ja) * 1997-01-27 2003-07-07 松下電器産業株式会社 階調補正装置ならびにそれを用いた映像信号処理装置
FI104521B (fi) * 1997-01-30 2000-02-15 Nokia Multimedia Network Termi Menetelmä kuvasekvenssien kontrastin parantamiseksi
US5949918A (en) * 1997-05-21 1999-09-07 Sarnoff Corporation Method and apparatus for performing image enhancement
WO2000060566A1 (fr) * 1999-03-31 2000-10-12 Fujitsu General Limited Circuit de correction de qualite d'image
JP2001103338A (ja) * 1999-09-30 2001-04-13 Fujitsu General Ltd 画質補正回路
JP4474737B2 (ja) * 2000-05-29 2010-06-09 パナソニック株式会社 階調補正装置
JP2002320111A (ja) * 2001-04-23 2002-10-31 Matsushita Electric Ind Co Ltd 階調補正装置
AU2003270386A1 (en) * 2002-09-06 2004-03-29 Rytec Corporation Signal intensity range transformation apparatus and method
JP4250595B2 (ja) * 2004-02-16 2009-04-08 キヤノン株式会社 信号処理方法及び信号処理回路
JP4497959B2 (ja) * 2004-03-05 2010-07-07 キヤノン株式会社 映像信号処理装置及び映像信号処理方法
JP2005292804A (ja) * 2004-03-10 2005-10-20 Canon Inc 制御装置及び画像表示装置
JP4086852B2 (ja) * 2004-03-16 2008-05-14 キヤノン株式会社 画像表示装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9846826B2 (en) 2013-06-28 2017-12-19 Ricoh Company, Ltd. Image processing to generate a tone curve for processing an image by associating a model parameter of the image with another model parameter of a reference image

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JP2006319953A (ja) 2006-11-24
US20060227396A1 (en) 2006-10-12

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