DE60137704D1 - System und verfahren zur verbesserung von gescannten dokumentbildern für den farbdruck - Google Patents
System und verfahren zur verbesserung von gescannten dokumentbildern für den farbdruckInfo
- Publication number
- DE60137704D1 DE60137704D1 DE60137704T DE60137704T DE60137704D1 DE 60137704 D1 DE60137704 D1 DE 60137704D1 DE 60137704 T DE60137704 T DE 60137704T DE 60137704 T DE60137704 T DE 60137704T DE 60137704 D1 DE60137704 D1 DE 60137704D1
- Authority
- DE
- Germany
- Prior art keywords
- improving
- color printing
- scanned document
- document images
- scanned
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
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
-
- 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
- H04N1/409—Edge or detail enhancement; Noise or error suppression
- H04N1/4095—Correction of errors due to scanning a two-sided document, i.e. show-through correction
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US09/704,358 US6621595B1 (en) | 2000-11-01 | 2000-11-01 | System and method for enhancing scanned document images for color printing |
PCT/US2001/045426 WO2002037832A2 (en) | 2000-11-01 | 2001-10-31 | System and method for enhancing scanned document images for color printing |
Publications (1)
Publication Number | Publication Date |
---|---|
DE60137704D1 true DE60137704D1 (de) | 2009-04-02 |
Family
ID=24829138
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60137704T Expired - Lifetime DE60137704D1 (de) | 2000-11-01 | 2001-10-31 | System und verfahren zur verbesserung von gescannten dokumentbildern für den farbdruck |
Country Status (6)
Country | Link |
---|---|
US (1) | US6621595B1 (de) |
EP (1) | EP1330917B1 (de) |
JP (1) | JP4112362B2 (de) |
AU (1) | AU2002227115A1 (de) |
DE (1) | DE60137704D1 (de) |
WO (1) | WO2002037832A2 (de) |
Families Citing this family (64)
Publication number | Priority date | Publication date | Assignee | Title |
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US7228002B2 (en) * | 2001-05-14 | 2007-06-05 | Intel Corporation | Inverse halftoning process |
US7058222B2 (en) * | 2001-12-20 | 2006-06-06 | Xerox Corporation | Automatic background detection of scanned documents |
US7050650B2 (en) * | 2002-02-28 | 2006-05-23 | Hewlett-Packard Development Company, L.P. | User selected background noise removal for scanned document images |
JP3855805B2 (ja) * | 2002-03-07 | 2006-12-13 | ブラザー工業株式会社 | 画像処理装置および画像処理方法 |
JP3862613B2 (ja) * | 2002-06-05 | 2006-12-27 | キヤノン株式会社 | 画像処理装置及び画像処理方法並びにコンピュータプログラム |
JP3862621B2 (ja) * | 2002-06-28 | 2006-12-27 | キヤノン株式会社 | 画像処理装置、画像処理方法、及びそのプログラム |
JP3964297B2 (ja) * | 2002-09-19 | 2007-08-22 | 株式会社リコー | 画像処理装置、画像処理方法、およびコンピュータが実行するためのプログラム |
NL1022258C2 (nl) * | 2002-12-24 | 2004-06-25 | Univ Delft Tech | Werkwijze voor het bewerken van een kleurenbeeld. |
US7194142B2 (en) * | 2003-02-28 | 2007-03-20 | Hewlett-Packard Development Company, L.P. | Selective thickening of dark features by biased sharpening filters |
JP3823933B2 (ja) * | 2003-03-07 | 2006-09-20 | 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 |
US20050001872A1 (en) * | 2003-07-02 | 2005-01-06 | Ahne Adam Jude | Method for filtering objects to be separated from a media |
JP2005045404A (ja) * | 2003-07-24 | 2005-02-17 | Ricoh Co Ltd | 画像処理装置、画像処理方法およびプログラム |
US7433535B2 (en) | 2003-09-30 | 2008-10-07 | Hewlett-Packard Development Company, L.P. | Enhancing text-like edges in digital images |
FR2869749B1 (fr) * | 2004-04-30 | 2006-10-20 | Sagem | Procede et systeme de traitement d'image par filtrage de blocs de pixels de l'image |
US7428331B2 (en) * | 2004-11-30 | 2008-09-23 | Seiko Epson Corporation | Page background estimation using color, texture and edge features |
US9769354B2 (en) | 2005-03-24 | 2017-09-19 | Kofax, Inc. | Systems and methods of processing scanned data |
US9137417B2 (en) | 2005-03-24 | 2015-09-15 | Kofax, Inc. | Systems and methods for processing video data |
US7586653B2 (en) * | 2005-04-22 | 2009-09-08 | Lexmark International, Inc. | Method and system for enhancing an image using luminance scaling |
US20060245665A1 (en) * | 2005-04-29 | 2006-11-02 | Je-Ho Lee | Method to detect previous sharpening of an image to preclude oversharpening |
US20060274376A1 (en) * | 2005-06-06 | 2006-12-07 | Lexmark International, Inc. | Method for image background detection and removal |
CN100405400C (zh) * | 2005-06-27 | 2008-07-23 | 同方威视技术股份有限公司 | 一种辐射成像中图像信息增强的方法 |
US7557963B2 (en) * | 2005-08-12 | 2009-07-07 | Seiko Epson Corporation | Label aided copy enhancement |
US7899258B2 (en) * | 2005-08-12 | 2011-03-01 | Seiko Epson Corporation | Systems and methods to convert images into high-quality compressed documents |
US7783117B2 (en) * | 2005-08-12 | 2010-08-24 | Seiko Epson Corporation | Systems and methods for generating background and foreground images for document compression |
US7734089B2 (en) * | 2005-08-23 | 2010-06-08 | Trident Microsystems (Far East) Ltd. | Method for reducing mosquito noise |
JP4238902B2 (ja) * | 2006-09-04 | 2009-03-18 | 日本電気株式会社 | 文字ノイズ除去装置、文字ノイズ除去方法、文字ノイズ除去プログラム |
US20080174797A1 (en) * | 2007-01-18 | 2008-07-24 | Samsung Electronics Co., Ltd. | Image forming device and method thereof |
US8134762B2 (en) * | 2007-01-29 | 2012-03-13 | Sharp Laboratories Of America, Inc. | Methods and systems for characterizing regions of substantially-uniform color in a digital image |
US7894689B2 (en) * | 2007-05-31 | 2011-02-22 | Seiko Epson Corporation | Image stitching |
US7873215B2 (en) * | 2007-06-27 | 2011-01-18 | Seiko Epson Corporation | Precise identification of text pixels from scanned document images |
JP5349790B2 (ja) * | 2007-11-16 | 2013-11-20 | キヤノン株式会社 | 画像処理装置、画像処理方法、及びプログラム |
CN101577832B (zh) * | 2008-05-06 | 2012-03-21 | 联咏科技股份有限公司 | 用于加强文字显示效果的图像处理电路及其方法 |
US9177218B2 (en) * | 2008-09-08 | 2015-11-03 | Kofax, Inc. | System and method, and computer program product for detecting an edge in scan data |
KR101296681B1 (ko) * | 2008-09-24 | 2013-08-16 | 삼성전자주식회사 | 영상 처리 방법 및 이를 이용한 화상형성장치 |
US8958605B2 (en) | 2009-02-10 | 2015-02-17 | Kofax, Inc. | Systems, methods and computer program products for determining document validity |
US9349046B2 (en) | 2009-02-10 | 2016-05-24 | Kofax, Inc. | Smart optical input/output (I/O) extension for context-dependent workflows |
US8774516B2 (en) | 2009-02-10 | 2014-07-08 | Kofax, Inc. | Systems, methods and computer program products for determining document validity |
US9576272B2 (en) | 2009-02-10 | 2017-02-21 | Kofax, Inc. | Systems, methods and computer program products for determining document validity |
US9767354B2 (en) | 2009-02-10 | 2017-09-19 | Kofax, Inc. | Global geographic information retrieval, validation, and normalization |
JP5525548B2 (ja) | 2009-02-13 | 2014-06-18 | オセ−テクノロジーズ ビーブイ | デジタル画像を処理するための画像処理システム及びデジタル画像を処理する画像処理方法 |
US20120087596A1 (en) * | 2010-10-06 | 2012-04-12 | Kamat Pawankumar Jagannath | Methods and systems for pipelined image processing |
US8755625B2 (en) | 2010-11-19 | 2014-06-17 | Analog Devices, Inc. | Component filtering for low-light noise reduction |
US20120128244A1 (en) * | 2010-11-19 | 2012-05-24 | Raka Singh | Divide-and-conquer filter for low-light noise reduction |
US9223769B2 (en) | 2011-09-21 | 2015-12-29 | Roman Tsibulevskiy | Data processing systems, devices, and methods for content analysis |
US10146795B2 (en) | 2012-01-12 | 2018-12-04 | Kofax, Inc. | Systems and methods for mobile image capture and processing |
US8989515B2 (en) | 2012-01-12 | 2015-03-24 | Kofax, Inc. | Systems and methods for mobile image capture and processing |
US9058580B1 (en) | 2012-01-12 | 2015-06-16 | Kofax, Inc. | Systems and methods for identification document processing and business workflow integration |
US9483794B2 (en) | 2012-01-12 | 2016-11-01 | Kofax, Inc. | Systems and methods for identification document processing and business workflow integration |
US9058515B1 (en) | 2012-01-12 | 2015-06-16 | Kofax, Inc. | Systems and methods for identification document processing and business workflow integration |
WO2014160426A1 (en) | 2013-03-13 | 2014-10-02 | Kofax, Inc. | Classifying objects in digital images captured using mobile devices |
US9355312B2 (en) | 2013-03-13 | 2016-05-31 | Kofax, Inc. | Systems and methods for classifying objects in digital images captured using mobile devices |
US9208536B2 (en) | 2013-09-27 | 2015-12-08 | Kofax, Inc. | Systems and methods for three dimensional geometric reconstruction of captured image data |
US20140316841A1 (en) | 2013-04-23 | 2014-10-23 | Kofax, Inc. | Location-based workflows and services |
US9134931B2 (en) | 2013-04-30 | 2015-09-15 | Hewlett-Packard Development Company, L.P. | Printing content over a network |
DE202014011407U1 (de) | 2013-05-03 | 2020-04-20 | Kofax, Inc. | Systeme zum Erkennen und Klassifizieren von Objekten in durch Mobilgeräte aufgenommenen Videos |
JP2016538783A (ja) | 2013-11-15 | 2016-12-08 | コファックス, インコーポレイテッド | モバイル映像データを用いて長尺文書の合成画像を生成するためのシステムおよび方法 |
JP6338469B2 (ja) * | 2014-06-23 | 2018-06-06 | キヤノン株式会社 | 画像処理装置および画像処理方法 |
CN105335953B (zh) * | 2014-07-07 | 2018-04-10 | 富士通株式会社 | 提取图像的背景亮度图的装置和方法、去阴影装置和方法 |
US9760788B2 (en) | 2014-10-30 | 2017-09-12 | Kofax, Inc. | Mobile document detection and orientation based on reference object characteristics |
US10242285B2 (en) | 2015-07-20 | 2019-03-26 | Kofax, Inc. | Iterative recognition-guided thresholding and data extraction |
US9779296B1 (en) | 2016-04-01 | 2017-10-03 | Kofax, Inc. | Content-based detection and three dimensional geometric reconstruction of objects in image and video data |
CN106057167B (zh) * | 2016-07-21 | 2019-04-05 | 京东方科技集团股份有限公司 | 一种对文字边缘暗化处理的方法及装置 |
US10803350B2 (en) | 2017-11-30 | 2020-10-13 | Kofax, Inc. | Object detection and image cropping using a multi-detector approach |
JP7282510B2 (ja) * | 2018-12-07 | 2023-05-29 | キヤノン株式会社 | 画像処理装置、画像処理方法、およびプログラム |
Family Cites Families (11)
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 |
EP0506380B1 (de) * | 1991-03-27 | 1996-07-17 | Canon Kabushiki Kaisha | Bildverarbeitungsgerät |
US5280367A (en) * | 1991-05-28 | 1994-01-18 | Hewlett-Packard Company | Automatic separation of text from background in scanned images of complex documents |
EP0531904A3 (en) | 1991-09-10 | 1993-10-06 | Eastman Kodak Company | Method and apparatus for spatially variant filtering |
JP3359390B2 (ja) | 1993-09-27 | 2002-12-24 | 株式会社リコー | 空間フィルタ装置 |
US5363209A (en) | 1993-11-05 | 1994-11-08 | Xerox Corporation | Image-dependent sharpness enhancement |
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 |
US5583659A (en) * | 1994-11-10 | 1996-12-10 | Eastman Kodak Company | Multi-windowing technique for thresholding an image using local image properties |
JP3221291B2 (ja) | 1995-07-26 | 2001-10-22 | ソニー株式会社 | 画像処理装置、画像処理方法、ノイズ除去装置及びノイズ除去方法 |
JP2001320584A (ja) * | 2000-05-08 | 2001-11-16 | Ricoh Co Ltd | 画像処理装置及び画像形成装置 |
-
2000
- 2000-11-01 US US09/704,358 patent/US6621595B1/en not_active Expired - Lifetime
-
2001
- 2001-10-31 EP EP01993115A patent/EP1330917B1/de not_active Expired - Lifetime
- 2001-10-31 AU AU2002227115A patent/AU2002227115A1/en not_active Abandoned
- 2001-10-31 WO PCT/US2001/045426 patent/WO2002037832A2/en active Application Filing
- 2001-10-31 DE DE60137704T patent/DE60137704D1/de not_active Expired - Lifetime
- 2001-10-31 JP JP2002540441A patent/JP4112362B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP4112362B2 (ja) | 2008-07-02 |
WO2002037832A3 (en) | 2002-08-29 |
WO2002037832A2 (en) | 2002-05-10 |
US6621595B1 (en) | 2003-09-16 |
AU2002227115A1 (en) | 2002-05-15 |
JP2004521529A (ja) | 2004-07-15 |
EP1330917A2 (de) | 2003-07-30 |
EP1330917B1 (de) | 2009-02-18 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8327 | Change in the person/name/address of the patent owner |
Owner name: HEWLETT-PACKARD DEVELOPMENT CO., L.P., HOUSTON, US |
|
8328 | Change in the person/name/address of the agent |
Representative=s name: SCHOPPE, ZIMMERMANN, STOECKELER & ZINKLER, 82049 P |
|
8364 | No opposition during term of opposition |