BR0003320A - Processo e sistema para ajustar imagens binárias - Google Patents

Processo e sistema para ajustar imagens binárias

Info

Publication number
BR0003320A
BR0003320A BR0003320-0A BR0003320A BR0003320A BR 0003320 A BR0003320 A BR 0003320A BR 0003320 A BR0003320 A BR 0003320A BR 0003320 A BR0003320 A BR 0003320A
Authority
BR
Brazil
Prior art keywords
printer
image
printed
binary
binary image
Prior art date
Application number
BR0003320-0A
Other languages
English (en)
Other versions
BR0003320B1 (pt
Inventor
Thomas A Sanderson
Ying-Wei Lin
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 BR0003320A publication Critical patent/BR0003320A/pt
Publication of BR0003320B1 publication Critical patent/BR0003320B1/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
    • H04N1/407—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
    • H04N1/40075—Descreening, i.e. converting a halftone signal into a corresponding continuous-tone signal; Rescreening, i.e. combined descreening and halftoning

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Color, Gradation (AREA)
  • Facsimile Image Signal Circuits (AREA)

Abstract

Patente de Invenção: <B>"PROCESSO E SISTEMA PARA AJUSTAR IMAGENS BINáRIAS"<D>. Processo e sistema que convertem uma imagem binária eletrónica em outra imagem binária eletrónica com a compensação das diferenças entre as respostas da impressora, de modo que uma impressora alvo possa imprimir a imagem para emular como a imagem apareceria, se impressa por uma impressora originalmente determinada ou outra impressora. Uma imagem binária pronta para impressão é introduzida em um circuito de simulação de impressão e varredura que eletronicamente simula a impressão e a varredura dos dados de imagem. O circuito de simulação de impressão e varredura converte os dados de imagem binária em dados de imagem de escala de cinza. Os dados de imagem de escala de cinza são então processados por um circuito de correção de resposta de tonalidade. O circuito de correção de resposta de tonalidade altera os dados da imagem de escala de cinza com base na direção entre as curvas de reprodução de tonalidade das duas impressoras, tal como uma impressora originalmente determinada e uma impressora alvo. Isto muda o valor de cada pixel, de modo que ele finalmente produza a mesma densidade na impressora alvo, quando ele for convertido em forma binária e impresso, como seria, se a imagem binária original fosse impressa na impressora originalmente determinada. Estes dados de imagem de escala de cinza alterados são então enviados para um circuito de binarização, que converte os dados de imagem de escala de cinza em uma imagem binária. A imagem binária pode então ser enviada auma impressora, tal como uma impressora alvo, de modo que a qualidade da imagem binária impressa simule como ela teria sido impressa na impressora originalmente determinada.
BRPI0003320-0A 1999-07-01 2000-07-03 processo e sistema para alterar um arquivo de imagem binÁria pronta para impressço. BR0003320B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/345,740 US6717700B1 (en) 1999-07-01 1999-07-01 Method and system for adjusting binary images

Publications (2)

Publication Number Publication Date
BR0003320A true BR0003320A (pt) 2001-03-13
BR0003320B1 BR0003320B1 (pt) 2013-03-05

Family

ID=23356298

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0003320-0A BR0003320B1 (pt) 1999-07-01 2000-07-03 processo e sistema para alterar um arquivo de imagem binÁria pronta para impressço.

Country Status (2)

Country Link
US (1) US6717700B1 (pt)
BR (1) BR0003320B1 (pt)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002016939A (ja) * 2000-04-28 2002-01-18 Fuji Photo Film Co Ltd 画像処理方法および装置並びに記録媒体
US20040160616A1 (en) * 2003-02-18 2004-08-19 Match Lab, Inc. Black and white image color mark removal
US8305660B2 (en) * 2004-08-19 2012-11-06 Xerox Corporation Methods and systems achieving print uniformity using reduced memory or computational requirements
US8432582B2 (en) * 2004-08-20 2013-04-30 Xerox Corporation Uniformity compensation in halftoned images
US7460276B2 (en) * 2004-12-17 2008-12-02 Xerox Corporation Systems and methods for rank-order error diffusion image processing
US7440139B2 (en) * 2005-01-13 2008-10-21 Xerox Corporation Systems and methods for controlling a tone reproduction curve using error diffusion
US7586627B2 (en) * 2005-09-30 2009-09-08 Pitney Bowes Inc. Method and system for optimizing print-scan simulations
US8199363B2 (en) * 2006-11-17 2012-06-12 Samsung Electronics Co., Ltd. Image processing using hybrid lookup table
US20080266580A1 (en) * 2007-04-24 2008-10-30 Xerox Corporation Scaling methods for binary image data
JP5482626B2 (ja) * 2010-11-15 2014-05-07 セイコーエプソン株式会社 印刷システム、対応関係情報作成方法
US8870319B2 (en) 2012-05-02 2014-10-28 Xerox Corporation System and method for printing with ink limiting
JP6609141B2 (ja) * 2015-08-27 2019-11-20 キヤノン株式会社 画像処理装置およびその方法、並びに、画像形成装置

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5208871A (en) 1990-10-19 1993-05-04 Xerox Corporation Pixel quantization with adaptive error diffusion
US5226094A (en) 1990-10-19 1993-07-06 Xerox Corporation Method for making image conversions with error diffusion
US5243443A (en) 1991-12-06 1993-09-07 Xerox Corporation Halftoning with error feedback and image dependent enhancement
US5245678A (en) 1991-12-20 1993-09-14 Xerox Corporation Image conversion with lossy adaptive error diffusion
US5363213A (en) 1992-06-08 1994-11-08 Xerox Corporation Unquantized resolution conversion of bitmap images using error diffusion
US5270836A (en) 1992-11-25 1993-12-14 Xerox Corporation Resolution conversion of bitmap images
US5278670A (en) 1992-12-18 1994-01-11 Xerox Corporation Content-based resolution conversion of color documents
US5325211A (en) 1993-01-04 1994-06-28 Xerox Corporation Error diffusion with output and input based feedback
CA2132248C (en) 1993-11-01 1999-09-21 Ying-Wei Lin Apparatus and method for arbitrary binary resolution conversion
US5621546A (en) 1993-11-02 1997-04-15 Xerox Corporation Method and apparatus for vector error diffusion with output color control
US5724455A (en) 1993-12-17 1998-03-03 Xerox Corporation Automated template design method for print enhancement
DE69520703T2 (de) 1994-03-02 2001-08-02 Hewlett-Packard Co. (N.D.Ges.D.Staates Delaware), Palo Alto Erzeugung von Mehrfachtonbildern
US5535019A (en) 1994-09-15 1996-07-09 Xerox Corporation Error diffusion halftoning with homogeneous response in high/low intensity image regions
WO1996009717A1 (en) * 1994-09-19 1996-03-28 Apple Computer, Inc. Generation of tone reproduction curves using psychophysical data
US5565994A (en) 1994-12-06 1996-10-15 Xerox Corporation Multiple separation error diffusion, with cross separation correlation control for color images
US5666470A (en) 1995-06-29 1997-09-09 Xerox Corporation Method and apparatus for appearance tuning of bitmap images
US5748785A (en) 1996-09-26 1998-05-05 Xerox Corporation Inter-separation color image processing using error diffusion
US6515770B1 (en) * 1999-03-16 2003-02-04 International Business Machines Corporation Dither mask generation with calibration-independent number of threshold levels

Also Published As

Publication number Publication date
BR0003320B1 (pt) 2013-03-05
US6717700B1 (en) 2004-04-06

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Legal Events

Date Code Title Description
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 05/03/2013, OBSERVADAS AS CONDICOES LEGAIS.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time

Free format text: REFERENTE A 16A ANUIDADE.

B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)

Free format text: EM VIRTUDE DA EXTINCAO PUBLICADA NA RPI 2385 DE 20-09-2016 E CONSIDERANDO AUSENCIA DE MANIFESTACAO DENTRO DOS PRAZOS LEGAIS, INFORMO QUE CABE SER MANTIDA A EXTINCAO DA PATENTE E SEUS CERTIFICADOS, CONFORME O DISPOSTO NO ARTIGO 12, DA RESOLUCAO 113/2013.