BRPI0702354A - método e aparelho para calibração de uma impressora a cores - Google Patents

método e aparelho para calibração de uma impressora a cores

Info

Publication number
BRPI0702354A
BRPI0702354A BRPI0702354-5A BRPI0702354A BRPI0702354A BR PI0702354 A BRPI0702354 A BR PI0702354A BR PI0702354 A BRPI0702354 A BR PI0702354A BR PI0702354 A BRPI0702354 A BR PI0702354A
Authority
BR
Brazil
Prior art keywords
halftones
calibration
response
calibration target
printer
Prior art date
Application number
BRPI0702354-5A
Other languages
English (en)
Inventor
Yingjun Bai
Original Assignee
Xerox Corp
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 Xerox Corp filed Critical Xerox Corp
Publication of BRPI0702354A publication Critical patent/BRPI0702354A/pt

Links

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
    • H04N1/405—Halftoning, i.e. converting the picture signal of a continuous-tone original into a corresponding signal showing only two levels
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Color Image Communication Systems (AREA)

Abstract

MéTODO E APARELHO PARA CALIBRAçãO DE UMA IMPRESSORA A CORES. A presente invenção refere-se a um sistema de reprodução de cor com correção de desvio que inclui um módulo de armazenamento, um módulo de processamento de imagem, uma impressora, um scanner e um módulo de calibração. O módulo de armazenamento armazena um ou mais meio-tons de resposta linear corrente e um conjunto de sinais de cores independentes de dispositivo representativos de um alvo de calibração. O módulo de processamento de imagem recebe os sinais de cores independentes de dispositivo armazenados e gera dados de impressão binários com base no um ou mais meio-tons de resposta linear correntes. A impressora imprime uma cópia do alvo de calibração de acordo com os dados de impressão binários. O scanner varre a cópia do alvo de calibração impressa pela impressora para gerar dados de imagem varridos que correspondem à cópia do alvo de calibração. O módulo de calibração gera uma ou mais funções de correção de resposta de tom com base em uma comparação entre os dados de imagem varridos e os sinais de cores independentes de dispositivo armazenados representativos do alvo de calibração e cria um ou mais meio-tons de resposta linear calibrados, com base nas funções de correção de resposta de tom geradas. Em alguns casos, o um ou mais meio-tons de resposta linear calibrados são armazenados no módulo de armazenamento como os meio-tons de resposta linear corrente.
BRPI0702354-5A 2006-05-24 2007-05-24 método e aparelho para calibração de uma impressora a cores BRPI0702354A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/439,187 US8253975B2 (en) 2006-05-24 2006-05-24 Method and apparatus for calibration of a color printer

Publications (1)

Publication Number Publication Date
BRPI0702354A true BRPI0702354A (pt) 2008-01-15

Family

ID=38749195

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0702354-5A BRPI0702354A (pt) 2006-05-24 2007-05-24 método e aparelho para calibração de uma impressora a cores

Country Status (3)

Country Link
US (1) US8253975B2 (pt)
KR (1) KR101374571B1 (pt)
BR (1) BRPI0702354A (pt)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7948658B2 (en) * 2008-05-27 2011-05-24 Xerox Corporation Tone reproduction curve linearization
US7864373B2 (en) * 2008-05-27 2011-01-04 Xerox Corporation Method and system for toner reproduction curve linearization using least squares solution of monotone spline functions
KR101314230B1 (ko) * 2008-07-18 2013-10-04 삼성전자주식회사 화상처리장치 및 그 화상처리방법
JP5537194B2 (ja) * 2010-03-05 2014-07-02 キヤノン株式会社 カラー画像形成装置
US8542418B2 (en) * 2010-08-25 2013-09-24 Ricoh Production Print Solutions LLC Printer calibration for printers with fixed print array structures
US8870319B2 (en) 2012-05-02 2014-10-28 Xerox Corporation System and method for printing with ink limiting
US8982413B2 (en) 2013-03-14 2015-03-17 Xerox Corporation Methods, systems and processor-readable media for dynamically detecting and switching profiling configurations
US8896892B2 (en) * 2013-03-21 2014-11-25 Xerox Corporation System and method for color calibration of a color printing system with recording media brightness compensation
US9019561B1 (en) 2014-06-09 2015-04-28 Xerox Corporation Profiling data spacing for different halftone states using a single tone reproduction curve
JP6939918B2 (ja) * 2016-01-28 2021-09-22 コニカミノルタ株式会社 画像形成装置
WO2018194643A1 (en) 2017-04-21 2018-10-25 Hewlett-Packard Development Company, L.P. Color mapping resources
US11305550B2 (en) * 2019-02-27 2022-04-19 Ricoh Company, Ltd. Ink deposition uniformity compensation mechanism
WO2021096495A1 (en) * 2019-11-13 2021-05-20 Hewlett-Packard Development Company, L.P. Printhead calibration
US11323593B1 (en) * 2021-03-31 2022-05-03 Kyocera Document Solutions Inc. Methods and system for managing icc profiles within a color printing system
US11917115B1 (en) 2023-03-10 2024-02-27 Ricoh Company, Ltd. Shift compensation mechanism

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2598723B2 (ja) * 1990-06-28 1997-04-09 大日本スクリーン製造株式会社 網点画像作成装置
CA2055058C (en) * 1990-12-31 1996-08-06 Anthony Joseph Dattilo Automatic correction for color printing
US5625716A (en) 1994-03-15 1997-04-29 Adobe Systems Incorporated Method for compensating for transfer characteristics of a printing system in a halftone screening process
US5604567A (en) * 1994-06-03 1997-02-18 Xerox Corporation Printer color and gray balance adjustment system
US6157469A (en) * 1998-05-22 2000-12-05 Xerox Corporation Dynamic device independent image correction method and apparatus
US6512597B1 (en) * 1999-11-17 2003-01-28 Lexmark International, Inc. Method and apparatus for correcting unadjusted threshold arrays for halftoning by use of parameterized transfer functions that generate adjusted threshold arrays at run time
US6900448B1 (en) * 2000-07-31 2005-05-31 Hewlett-Packard Development Company L.P. Method and system for dynamic scanner calibration
US6584903B2 (en) * 2000-12-12 2003-07-01 Xerox Corporation Color digital front end decomposer output to multiple color spaces with actual output optionally being determined by input color spaces
US7319545B2 (en) 2002-12-17 2008-01-15 Xerox Corporation Method and apparatus for calibration of a color printer
DE50308795D1 (de) * 2003-07-23 2008-01-24 Gretag Macbeth Ag Digitaldrucker
JP2005043617A (ja) 2003-07-28 2005-02-17 Konica Minolta Business Technologies Inc 画像形成装置
JP2005203855A (ja) 2004-01-13 2005-07-28 Toppan Printing Co Ltd 出力補正方法、出力補正装置、ならびにそのプログラムとそのプログラムを記録した記録媒体

Also Published As

Publication number Publication date
KR20070114003A (ko) 2007-11-29
US20070273900A1 (en) 2007-11-29
US8253975B2 (en) 2012-08-28
KR101374571B1 (ko) 2014-03-17

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 9A ANUIDADE.

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: EM VIRTUDE DO ARQUIVAMENTO PUBLICADO NA RPI 2385 DE 20-09-2016 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDO O ARQUIVAMENTO DO PEDIDO DE PATENTE, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.