TWI319164B - Selective smoothing including bleed-through reduction - Google Patents

Selective smoothing including bleed-through reduction

Info

Publication number
TWI319164B
TWI319164B TW092124736A TW92124736A TWI319164B TW I319164 B TWI319164 B TW I319164B TW 092124736 A TW092124736 A TW 092124736A TW 92124736 A TW92124736 A TW 92124736A TW I319164 B TWI319164 B TW I319164B
Authority
TW
Taiwan
Prior art keywords
reduction
selective smoothing
including bleed
smoothing including
bleed
Prior art date
Application number
TW092124736A
Other languages
English (en)
Other versions
TW200416621A (en
Inventor
P Maurer Ron
Original Assignee
Hewlett Packard Development Co
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 Hewlett Packard Development Co filed Critical Hewlett Packard Development Co
Publication of TW200416621A publication Critical patent/TW200416621A/zh
Application granted granted Critical
Publication of TWI319164B publication Critical patent/TWI319164B/zh

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
    • H04N1/409—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

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
TW092124736A 2003-02-28 2003-09-08 Selective smoothing including bleed-through reduction TWI319164B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US10/376,888 US7636492B2 (en) 2003-02-28 2003-02-28 Selective smoothing including bleed-through reduction

Publications (2)

Publication Number Publication Date
TW200416621A TW200416621A (en) 2004-09-01
TWI319164B true TWI319164B (en) 2010-01-01

Family

ID=32908024

Family Applications (1)

Application Number Title Priority Date Filing Date
TW092124736A TWI319164B (en) 2003-02-28 2003-09-08 Selective smoothing including bleed-through reduction

Country Status (5)

Country Link
US (1) US7636492B2 (zh)
EP (1) EP1597912A1 (zh)
JP (1) JP4499095B2 (zh)
TW (1) TWI319164B (zh)
WO (1) WO2004080061A1 (zh)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7116446B2 (en) * 2003-02-28 2006-10-03 Hewlett-Packard Development Company, L.P. Restoration and enhancement of scanned document images
CN101814283B (zh) 2005-04-04 2012-10-24 三星电子株式会社 图像处理方法
US7697783B2 (en) * 2005-07-26 2010-04-13 Sony Corporation Coding device, coding method, decoding device, decoding method, and programs of same
JP4544311B2 (ja) * 2008-01-24 2010-09-15 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
CN102113306A (zh) 2008-03-20 2011-06-29 惠普开发有限公司 基于缩略图的图像质量检查
US8503733B2 (en) * 2009-11-16 2013-08-06 Xerox Corporation Show-through measurement system and method for inks on media
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
CN104036469B (zh) * 2014-06-27 2017-02-15 天津大学 一种文档扫描图像透字效应消除方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4860118A (en) * 1987-02-25 1989-08-22 Canon Kabushiki Kaisha Image signal processing apparatus with edge emphasis and variable magnification
US5337162A (en) * 1991-06-30 1994-08-09 Ricoh Company, Ltd. Image processing apparatus for preventing occurrence of moire in output image
JP3207888B2 (ja) * 1991-06-30 2001-09-10 株式会社リコー 画像処理装置
JPH0630308A (ja) 1992-07-13 1994-02-04 Matsushita Electric Ind Co Ltd 画像データ処理装置
US6101283A (en) * 1998-06-24 2000-08-08 Xerox Corporation Show-through correction for two-sided, multi-page documents
US6227725B1 (en) * 1998-08-18 2001-05-08 Seiko Epson Corporation Text enhancement for color and gray-scale documents
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
US6731821B1 (en) 2000-09-29 2004-05-04 Hewlett-Packard Development Company, L.P. Method for enhancing compressibility and visual quality of scanned document images
US6496560B1 (en) * 2001-11-21 2002-12-17 Koninklijke Philips Electronics, N.V. Motion correction for perfusion measurements
US7050650B2 (en) * 2002-02-28 2006-05-23 Hewlett-Packard Development Company, L.P. User selected background noise removal for scanned document images
US7174049B2 (en) * 2002-12-11 2007-02-06 Seiko Epson Corporation Image upscaling by joint optimization of low and mid-level image variables

Also Published As

Publication number Publication date
TW200416621A (en) 2004-09-01
US7636492B2 (en) 2009-12-22
JP2006519575A (ja) 2006-08-24
WO2004080061A1 (en) 2004-09-16
US20040169891A1 (en) 2004-09-02
EP1597912A1 (en) 2005-11-23
JP4499095B2 (ja) 2010-07-07

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees