BR9901692A - Remoção de ruìdo de fundo para uma copiadora colorida digitavel de baixo custo - Google Patents

Remoção de ruìdo de fundo para uma copiadora colorida digitavel de baixo custo

Info

Publication number
BR9901692A
BR9901692A BR9901692-3A BR9901692A BR9901692A BR 9901692 A BR9901692 A BR 9901692A BR 9901692 A BR9901692 A BR 9901692A BR 9901692 A BR9901692 A BR 9901692A
Authority
BR
Brazil
Prior art keywords
background noise
copier
noise removal
digitable
cost
Prior art date
Application number
BR9901692-3A
Other languages
English (en)
Other versions
BR9901692B1 (pt
Inventor
James L Ball
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 BR9901692A publication Critical patent/BR9901692A/pt
Publication of BR9901692B1 publication Critical patent/BR9901692B1/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
    • H04N1/46—Colour picture communication systems
    • H04N1/56—Processing of colour picture signals
    • H04N1/58—Edge or detail enhancement; Noise or error suppression, e.g. colour misregistration correction

Abstract

Patente de Invenção: <B>"REMOçãO DE RUìDO DE FUNDO PARA UMA COPIADORA COLORIDA DIGITAL DE BAIXO CUSTO"<D>. é proporcionado um sistema para eliminação de ruído de fundo, isto é, pontos indesejados de tinta no fundo de um documento, que deve ser reproduzido por uma copiadora. Um módulo de STS coleta estatística em uma corrente de pixels, representando um documento original gerado por um digitalizador da copiadora. A estatística é usada por um módulo de MIC para determinar um valor de cor de fundo de referência do documento varrido. O valor de cor de fundo de referência e os valores de pixels de pixels incluídos na corrente de pixels são comparados por um módulo de RTE e os resultados da comparação são usados para ajustar, quando necessário, os valores de pixels, a fim de remover o ruído de fundo indesejável.
BRPI9901692-3A 1998-06-01 1999-05-31 método para remover ruìdo de fundo em um documento a ser reproduzido por uma copiadora e copiadora digital. BR9901692B1 (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/088,099 US6323957B1 (en) 1998-06-01 1998-06-01 Background noise removal for a low-cost digital color copier

Publications (2)

Publication Number Publication Date
BR9901692A true BR9901692A (pt) 2000-08-15
BR9901692B1 BR9901692B1 (pt) 2011-05-31

Family

ID=22209367

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI9901692-3A BR9901692B1 (pt) 1998-06-01 1999-05-31 método para remover ruìdo de fundo em um documento a ser reproduzido por uma copiadora e copiadora digital.

Country Status (7)

Country Link
US (1) US6323957B1 (pt)
EP (1) EP0963106B1 (pt)
JP (1) JP4104783B2 (pt)
CN (1) CN1210942C (pt)
BR (1) BR9901692B1 (pt)
DE (1) DE69914669T2 (pt)
TW (1) TW432863B (pt)

Families Citing this family (39)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7072072B1 (en) * 2000-05-02 2006-07-04 Xerox Corporation Color rendering optimized for text and line art
US6995866B2 (en) * 2000-09-20 2006-02-07 Sharp Laboratories Of America, Inc. Method and apparatus for background adjustment in color reproduction devices
US7057767B2 (en) 2001-03-06 2006-06-06 Hewlett-Packard Development Company, L.P. Automatic background removal method and system
JP2002281311A (ja) * 2001-03-15 2002-09-27 Ricoh Co Ltd 画像処理装置及び画像読取装置
US7630574B2 (en) * 2001-06-06 2009-12-08 Sharp Kabushiki Kaisha Image encoding method and image apparatus
GB2382905B (en) * 2001-12-04 2005-08-31 Software 2000 Ltd Printer ink reduction
US6749280B2 (en) * 2001-12-14 2004-06-15 Fuji Xerox Co., Ltd. Recording apparatus, recording method therefor and program therefor
US7050650B2 (en) * 2002-02-28 2006-05-23 Hewlett-Packard Development Company, L.P. User selected background noise removal for scanned document images
US6705703B2 (en) * 2002-04-24 2004-03-16 Hewlett-Packard Development Company, L.P. Determination of control points for construction of first color space-to-second color space look-up table
US7209599B2 (en) * 2002-07-12 2007-04-24 Hewlett-Packard Development Company, L.P. System and method for scanned image bleedthrough processing
US7079686B2 (en) * 2002-08-20 2006-07-18 Lexmark International, Inc. Systems and methods for content-based document image enhancement
JP4118749B2 (ja) 2002-09-05 2008-07-16 株式会社リコー 画像処理装置、画像処理プログラムおよび記憶媒体
US20040179730A1 (en) * 2003-03-12 2004-09-16 Sharp Laboratories Of America, Inc. Paper white determination
US20040190771A1 (en) * 2003-03-27 2004-09-30 Michel Eid Integer format for efficient image data processing
JP3882803B2 (ja) * 2003-10-20 2007-02-21 コニカミノルタビジネステクノロジーズ株式会社 画像処理装置、および画像処理方法
KR100750112B1 (ko) * 2003-11-03 2007-08-21 삼성전자주식회사 입체물 스캔 장치 및 방법
US7317829B2 (en) * 2003-12-12 2008-01-08 Microsoft Corporation Background color estimation for scanned images
US7430060B2 (en) * 2004-10-12 2008-09-30 Seiko Epson Corporation Fast low-memory paper color suppression algorithm
US7428331B2 (en) * 2004-11-30 2008-09-23 Seiko Epson Corporation Page background estimation using color, texture and edge features
JP4393411B2 (ja) * 2005-03-29 2010-01-06 株式会社東芝 画像処理装置、画像処理プログラムおよび画像処理方法
US20060274376A1 (en) * 2005-06-06 2006-12-07 Lexmark International, Inc. Method for image background detection and removal
US7551334B2 (en) * 2005-07-20 2009-06-23 Xerox Corporation Background suppression method and apparatus
EP1755329B1 (en) 2005-08-16 2011-04-27 Océ-Technologies B.V. Conversion method, apparatus and computer program for converting a digital image obtained by a scanner
US7668394B2 (en) * 2005-12-21 2010-02-23 Lexmark International, Inc. Background intensity correction of a scan of a document
JP4533327B2 (ja) * 2006-02-23 2010-09-01 キヤノン株式会社 画像処理装置及び方法、コンピュータプログラム及び記憶媒体
JP2008005317A (ja) * 2006-06-23 2008-01-10 Canon Inc 画像処理装置及びその方法、並びに、コンピュータプログラムおよび記録媒体
US7679786B2 (en) * 2006-09-06 2010-03-16 Eastman Kodak Company Color correction method
EP1898625A3 (en) * 2006-09-06 2009-10-14 Murata Machinery Ltd. Apparatus and method for deciding image color
US8130417B2 (en) * 2007-06-14 2012-03-06 Samsung Electronics Co., Ltd Image processing apparatus and image processing method
JP4989444B2 (ja) * 2007-12-21 2012-08-01 キヤノン株式会社 画像読取装置、マルチファンクションプリンタ装置、及び画像処理方法
US8243351B2 (en) * 2007-12-21 2012-08-14 Canon Kabushiki Kaisha Image reading apparatus, multifunction printer apparatus, and image processing method
JP4933418B2 (ja) * 2007-12-21 2012-05-16 キヤノン株式会社 画像読取装置、マルチファンクションプリンタ装置、及び画像処理方法
US7843616B2 (en) * 2008-03-27 2010-11-30 Xerox Corporation Background suppression in a multi-function color scanning system
JP5439210B2 (ja) * 2010-02-01 2014-03-12 日立コンシューマエレクトロニクス株式会社 画像処理装置
EP2880851A4 (en) 2012-07-30 2016-04-27 Hewlett Packard Development Co COPY OF DOCUMENT HAVING AN IMAGE IN THE SAME OF DATA CARRIER
US10348936B2 (en) 2015-01-30 2019-07-09 Hp Indigo B.V. Measuring color and calibrating printers
US9710911B2 (en) * 2015-11-30 2017-07-18 Raytheon Company System and method for generating a background reference image from a series of images to facilitate moving object identification
JP2018136654A (ja) * 2017-02-21 2018-08-30 富士ゼロックス株式会社 画像処理装置及び画像処理プログラム
US11330149B1 (en) * 2021-01-15 2022-05-10 Konica Minolta Business Solutions U.S.A., Inc. Finding the page background color range

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61168078A (ja) * 1985-01-15 1986-07-29 インタ−ナショナル　ビジネス　マシ−ンズ　コ−ポレ−ション イメ−ジ処理方法
JPS61214862A (ja) * 1985-03-21 1986-09-24 Canon Inc カラ−画像形成方法
US5213941A (en) 1988-10-21 1993-05-25 Hoechst Celanese Corporation Solid transfer negative- or positive-working color proofing method
JPH02294163A (ja) * 1989-05-08 1990-12-05 Mitsubishi Electric Corp 中間調補正方法
US5341228A (en) 1990-12-04 1994-08-23 Research Corporation Technologies Method and apparatus for halftone rendering of a gray scale image using a blue noise mask
JPH04219067A (ja) * 1990-12-19 1992-08-10 Canon Inc 画像処理方法
US5706368A (en) * 1990-12-26 1998-01-06 Canon Kabushiki Kaisha Image processing apparatus and method having detection of background color and encoding of color image data
JPH04275772A (ja) * 1991-03-04 1992-10-01 Eastman Kodak Japan Kk 画像読み取り装置
US5400053A (en) 1991-06-17 1995-03-21 Chips And Technologies, Inc. Method and apparatus for improved color to monochrome conversion
US5282061A (en) * 1991-12-23 1994-01-25 Xerox Corporation Programmable apparatus for determining document background level
DE69325527T2 (de) * 1992-02-21 1999-11-25 Canon Kk Gerät und Verfahren zur Bildverarbeitung
JPH05252388A (ja) * 1992-03-05 1993-09-28 Matsushita Electric Ind Co Ltd ノイズ除去装置
JP3384580B2 (ja) * 1992-04-30 2003-03-10 株式会社リコー 地肌除去方法
US5396346A (en) 1992-06-10 1995-03-07 Canon Kabushiki Kaisha Image processing method and apparatus using rounding processing
US5642204A (en) * 1992-12-02 1997-06-24 Industrial Technology Research Institute Error diffusion method
US5850298A (en) * 1994-03-22 1998-12-15 Ricoh Company, Ltd. Image processing device eliminating background noise
JP3046493B2 (ja) * 1994-05-09 2000-05-29 シャープ株式会社 画像処理装置
US5469276A (en) 1994-10-11 1995-11-21 Seiko Epson Corporation Method and apparatus for reducing artifacts in halftone images using gray balance correction

Also Published As

Publication number Publication date
EP0963106B1 (en) 2004-02-11
CN1210942C (zh) 2005-07-13
DE69914669T2 (de) 2004-07-15
BR9901692B1 (pt) 2011-05-31
JP4104783B2 (ja) 2008-06-18
EP0963106A2 (en) 1999-12-08
TW432863B (en) 2001-05-01
DE69914669D1 (de) 2004-03-18
US6323957B1 (en) 2001-11-27
JP2000050083A (ja) 2000-02-18
EP0963106A3 (en) 2002-05-22
CN1237721A (zh) 1999-12-08

Similar Documents

Publication Publication Date Title
BR9901692A (pt) Remoção de ruìdo de fundo para uma copiadora colorida digitavel de baixo custo
WO2000070863A3 (en) Image reconstruction architecture
WO2002037832A3 (en) System and method for enhancing scanned document images for color printing
EP0991020A3 (en) A system using residual images to represent a color digital image
AU2002334645A1 (en) Document processing system using full image scanning
EP0977439A3 (en) Logo insertion based on constrained encoding
AU4801300A (en) Extracting photographic images from video
WO2000010118A3 (en) Imaged document optical correlation and conversion system
EP0647921A3 (en) Structured image format for describing a complex color raster image.
DE60027646D1 (de) Sicheres Drucken
EP0881825A3 (en) A color image-forming apparatus capable of discriminating the colors of the original image
DE69938860D1 (de) Bildgerät zur Erzeugung von Hochqualitätsbildern
EP1107577A3 (en) Method of processing document image data
AU2001230276A1 (en) A method for encoding images, and an image coder
BR9907903A (pt) Processamento de dados digitais de imagem em um decodificador
NO20042543L (no) Adaptiv ramme-/feltkoding pa bildeniva for digitalt videoinnhold
CA2014548A1 (en) Efficient encoding/decoding in the decomposition and recomposition of a high resolution image utilizing its low resolution replica
EP1286304A3 (en) System and method for extracting a watermark signal in a digital image sequence
BR9704878B1 (pt) processo para processar uma imagem de entrada digital possuindo uma baixa resolução r1, processo para processar um sinal de imagem de entrada digital de cor enfatizada representando uma imagem de cor enfatizada.
EP1091284A3 (en) Processing device and method
BR0005917A (pt) Processo e aparelho para transformar vìdeo rgb
WO2005042252A3 (en) Rolled print prism and system
WO2002003133A3 (en) Apparatus and methods for data management within a photoprinter
EP0969669A3 (en) Method and apparatus for filtering chrominance signals of image
EP0612182A3 (en) Pixel and data format conversion processor for gravure printing.

Legal Events

Date Code Title Description
B06A Notification to applicant to reply to the report for non-patentability or inadequacy of the application [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 31/05/2011, OBSERVADAS AS CONDICOES LEGAIS.

B24B Patent annual fee: requirement for complementing annual fee

Free format text: CONFORME RESOLUCAO 124/06, O DEPOSITANTE DEVERA COMPLEMENTAR, DE ACORDO COM A TABELA VIGENTE, A RETRIBUICAO DA 13A ANUIDADE, REFERENTE A GUIA DE RECOLHIMENTO NO 92110554535-0 QUE FOI PAGA COM O VALOR REFERENTE A PEDIDO AO INVES DE PATENTE.

B24E Patent annual fee: resolution cancelled

Free format text: CABE SER ANULADO O DESPACHO PUBLICADO NA RPI 2128 DE 18/10/2011 ITEM 24.2 POR TER SIDO INDEVIDO.

B21F Lapse acc. art. 78, item iv - on non-payment of the annual fees in time
B24J Lapse because of non-payment of annual fees (definitively: art 78 iv lpi, resolution 113/2013 art. 12)