BRPI0502018A - Aparelho e método para detectar escala de cores em dispositivo colorido e para calcular a função de transformação inversa de espaço de cores - Google Patents

Aparelho e método para detectar escala de cores em dispositivo colorido e para calcular a função de transformação inversa de espaço de cores

Info

Publication number
BRPI0502018A
BRPI0502018A BR0502018-2A BRPI0502018A BRPI0502018A BR PI0502018 A BRPI0502018 A BR PI0502018A BR PI0502018 A BRPI0502018 A BR PI0502018A BR PI0502018 A BRPI0502018 A BR PI0502018A
Authority
BR
Brazil
Prior art keywords
color
color space
calculating
scale
transformation function
Prior art date
Application number
BR0502018-2A
Other languages
English (en)
Inventor
Jin-Sub Um
Moon-Cheol Kim
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Publication of BRPI0502018A publication Critical patent/BRPI0502018A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/77—Circuits for processing the brightness signal and the chrominance signal relative to each other, e.g. adjusting the phase of the brightness signal relative to the colour signal, correcting differential gain or differential phase
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T11/00—2D [Two Dimensional] image generation
    • G06T11/001—Texturing; Colouring; Generation of texture or colour
    • 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
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/60—Colour correction or control
    • H04N1/6058—Reduction of colour to a range of reproducible colours, e.g. to ink- reproducible colour gamut
    • H04N1/6061—Reduction of colour to a range of reproducible colours, e.g. to ink- reproducible colour gamut involving the consideration or construction of a gamut surface

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Color Image Communication Systems (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Image Analysis (AREA)
  • Processing Of Color Television Signals (AREA)
  • Controls And Circuits For Display Device (AREA)
  • Image Processing (AREA)

Abstract

"APARELHO E MéTODO PARA DETECTAR ESCALA DE CORES EM DISPOSITIVO COLORIDO E PARA CALCULAR A FUNçãO DE TRANSFORMAçãO INVERSA DE ESPAçO DE CORES". A presente invenção refere-se a um aparelho e a um método para detectar uma escala de cores de um dispositivo colorido e um método para calcular uma função de transformação inversa de espaço de cores utilizando o mesmo. O aparelho de detecção de escala de cores inclui um conversor de espaço de cores para converter um espaço de cores de um sinal de cor de entrada para um espaço de cores independente de dispositivo e para emitir um primeiro sinal de cor, um detector de ponto de interseção para detectar um ponto de interseção entre uma superfície limite de uma escala de cores do primeiro sinal de cor e um plano de um tom uniforme e um calculador de vetor de controle para calcular um vetor de controle correspondendo a um valor de cor primário do ponto de interseção detectado. Portanto, uma escala de cores precisa pode ser detectada por se calcular um vetor de controle em um espaço de cores dependente de dispositivo baseado em um ponto de interseção com o plano do tom uniforme ou com o plano da luminosidade uniforme no espaço de cores independente de dispositivo.
BR0502018-2A 2004-06-11 2005-06-09 Aparelho e método para detectar escala de cores em dispositivo colorido e para calcular a função de transformação inversa de espaço de cores BRPI0502018A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020040043119A KR100620491B1 (ko) 2004-06-11 2004-06-11 칼라 디바이스의 색역검출 장치와 방법 및 이를 이용한색공간역변환함수를 구하는 방법

Publications (1)

Publication Number Publication Date
BRPI0502018A true BRPI0502018A (pt) 2006-01-24

Family

ID=36648467

Family Applications (1)

Application Number Title Priority Date Filing Date
BR0502018-2A BRPI0502018A (pt) 2004-06-11 2005-06-09 Aparelho e método para detectar escala de cores em dispositivo colorido e para calcular a função de transformação inversa de espaço de cores

Country Status (6)

Country Link
US (1) US20050276473A1 (pt)
JP (1) JP2006050565A (pt)
KR (1) KR100620491B1 (pt)
CN (1) CN1708098A (pt)
BR (1) BRPI0502018A (pt)
NL (1) NL1029242C2 (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100467600B1 (ko) * 2002-07-30 2005-01-24 삼성전자주식회사 컬러 정정 방법
JP2007013626A (ja) * 2005-06-30 2007-01-18 Canon Inc 色処理方法および装置
KR101319335B1 (ko) 2007-06-22 2013-10-16 엘지디스플레이 주식회사 색역 맵핑 방법 및 그를 이용한 액정 표시 장치
JP2010130562A (ja) * 2008-11-28 2010-06-10 Sony Corp 色域拡大方法および表示装置
TWI426779B (zh) * 2010-08-13 2014-02-11 Inst Information Industry Object color correction method, system and its computer program products
JP5833049B2 (ja) * 2012-05-30 2015-12-16 富士フイルム株式会社 画像処理方法、画像処理装置および画像処理プログラム
KR101410703B1 (ko) * 2013-03-26 2014-06-24 삼성전자주식회사 칼라 신호 처리 방법, 장치 및 기록매체
JP6012124B2 (ja) * 2014-11-07 2016-10-25 京セラドキュメントソリューションズ株式会社 色域断面取得方法、色域断面取得プログラムおよび色域断面取得装置

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10178557A (ja) 1996-10-14 1998-06-30 Oki Data:Kk カラー画像処理方法
US6225974B1 (en) * 1997-06-19 2001-05-01 Electronics For Imaging, Inc. Gamut correction with color separation and methods and apparatuses for performing same
JPH11341296A (ja) * 1998-05-28 1999-12-10 Sony Corp 色域変換方法及び色域変換装置
KR100280819B1 (ko) * 1998-09-10 2001-02-01 정선종 칼라 디바이스 색 재현 영역 계측기 및 색 재현 한계영역 추출방법
US6618499B1 (en) * 1999-06-01 2003-09-09 Canon Kabushiki Kaisha Iterative gamut mapping
JP2003244461A (ja) * 2002-02-19 2003-08-29 Canon Inc 色域算出方法及びその装置
JP2004104777A (ja) 2002-08-23 2004-04-02 Fuji Xerox Co Ltd 色域マッピング方法および色域マッピング装置、色域マッピングプログラム、記憶媒体
JP2004104603A (ja) 2002-09-11 2004-04-02 Canon Inc 画像処理装置および画像処理方法ならびに記憶媒体、プログラム
US7397588B2 (en) * 2005-01-31 2008-07-08 Canon Kabushiki Kaisha Generation of hue slice table for gamut mapping

Also Published As

Publication number Publication date
JP2006050565A (ja) 2006-02-16
KR100620491B1 (ko) 2006-09-14
CN1708098A (zh) 2005-12-14
NL1029242C2 (nl) 2006-05-09
US20050276473A1 (en) 2005-12-15
NL1029242A1 (nl) 2005-12-14
KR20050117862A (ko) 2005-12-15

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Legal Events

Date Code Title Description
B03A Publication of a patent application or of a certificate of addition of invention [chapter 3.1 patent gazette]
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 4A E 5A ANUIDADE(S).

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2086 DE 28/12/2010.