JP2001092958A - デジタル画像の画質改善方法 - Google Patents

デジタル画像の画質改善方法

Info

Publication number
JP2001092958A
JP2001092958A JP2000257142A JP2000257142A JP2001092958A JP 2001092958 A JP2001092958 A JP 2001092958A JP 2000257142 A JP2000257142 A JP 2000257142A JP 2000257142 A JP2000257142 A JP 2000257142A JP 2001092958 A JP2001092958 A JP 2001092958A
Authority
JP
Japan
Prior art keywords
input pixel
pixel window
change
computer
image
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.)
Withdrawn
Application number
JP2000257142A
Other languages
English (en)
Japanese (ja)
Other versions
JP2001092958A5 (enExample
Inventor
Brian Atkins
ブライアン・アトキンス
Morgan Schramm
モルガン・シュラム
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HP Inc
Original Assignee
Hewlett Packard 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 Co filed Critical Hewlett Packard Co
Publication of JP2001092958A publication Critical patent/JP2001092958A/ja
Publication of JP2001092958A5 publication Critical patent/JP2001092958A5/ja
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration using local operators

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP2000257142A 1999-08-27 2000-08-28 デジタル画像の画質改善方法 Withdrawn JP2001092958A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/384488 1999-08-27
US09/384,488 US6721457B1 (en) 1999-08-27 1999-08-27 Method for enhancing digital images

Publications (2)

Publication Number Publication Date
JP2001092958A true JP2001092958A (ja) 2001-04-06
JP2001092958A5 JP2001092958A5 (enExample) 2007-10-04

Family

ID=23517501

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2000257142A Withdrawn JP2001092958A (ja) 1999-08-27 2000-08-28 デジタル画像の画質改善方法

Country Status (4)

Country Link
US (1) US6721457B1 (enExample)
JP (1) JP2001092958A (enExample)
DE (1) DE10039648A1 (enExample)
GB (1) GB2357001B (enExample)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008505675A (ja) * 2004-07-09 2008-02-28 アロカ株式会社 エッジの検出と強調を行うイメージ処理の方法および装置

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3736219B2 (ja) * 1999-08-13 2006-01-18 コニカミノルタビジネステクノロジーズ株式会社 画像処理装置及び方法
US20050100235A1 (en) * 2003-11-07 2005-05-12 Hao-Song Kong System and method for classifying and filtering pixels
CN101036161B (zh) * 2004-10-08 2011-05-18 松下电器产业株式会社 图像处理装置及图像处理方法
KR100735551B1 (ko) * 2005-10-14 2007-07-04 삼성전자주식회사 칼라 영역별 적응적 필터링 방법 및 장치
TW200733720A (en) * 2006-02-24 2007-09-01 Pixart Imaging Inc Digital image processing method and the device thereof
ES2607902T3 (es) * 2006-07-11 2017-04-04 Vestel Elektronik Sanayi Ve Ticaret A.S. Procedimiento y aparato para ajustar el contraste de una imagen
US7778482B2 (en) * 2006-07-19 2010-08-17 Trident Microsystems (Far East) Ltd. Method and system for reducing mosquito noise in a digital image
TWI328400B (en) * 2006-07-21 2010-08-01 Via Tech Inc Dynamically choosing apparatus and the method for choosing a filter coefficient group thereof
US8665498B2 (en) * 2010-07-20 2014-03-04 Conexant Systems, Inc. Method and system for automatically detecting and processing halftone regions in scanned documents
JP5841968B2 (ja) * 2013-05-31 2016-01-13 京セラドキュメントソリューションズ株式会社 画像読取装置、画像形成装置およびプログラム
US10026010B2 (en) * 2014-05-14 2018-07-17 At&T Intellectual Property I, L.P. Image quality estimation using a reference image portion

Family Cites Families (22)

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Publication number Priority date Publication date Assignee Title
JPH07121063B2 (ja) 1987-01-21 1995-12-20 富士ゼロックス株式会社 画像処理装置
JPS63294082A (ja) * 1987-05-26 1988-11-30 Canon Inc 画像記録装置
JPH02162475A (ja) 1988-12-15 1990-06-22 Dainippon Screen Mfg Co Ltd 画像輪郭修正方法
JPH0834544B2 (ja) 1990-08-14 1996-03-29 株式会社東芝 画像の復元処理方法
US5031227A (en) 1990-09-27 1991-07-09 Loral Aerospace Corp. Edge enhancement and smoothing in digital images
NL9100275A (nl) * 1991-02-18 1992-09-16 Oce Nederland Bv Werkwijze voor beeldbewerking, scan/afdruksysteem voor uitvoeren van de werkwijze en beeldselectieeenheid voor toepassing in het scan/afdruksysteem.
US5283671A (en) 1991-02-20 1994-02-01 Stewart John R Method and apparatus for converting RGB digital data to optimized CMYK digital data
US5271064A (en) 1991-06-14 1993-12-14 University Of Cincinnati Apparatus and method for smoothing regions and enhancing edges in gray scale images
EP0531904A3 (en) 1991-09-10 1993-10-06 Eastman Kodak Company Method and apparatus for spatially variant filtering
US5273040A (en) 1991-11-14 1993-12-28 Picker International, Inc. Measurement of vetricle volumes with cardiac MRI
JP3092024B2 (ja) 1991-12-09 2000-09-25 松下電器産業株式会社 画像処理方法
US5649031A (en) 1992-03-31 1997-07-15 Hitachi, Ltd. Image information processor for producing high-quality output image
JP3097785B2 (ja) 1992-04-30 2000-10-10 株式会社リコー 画像処理装置
JP3314195B2 (ja) * 1992-12-28 2002-08-12 ミノルタ株式会社 画像処理装置
JP3640404B2 (ja) 1993-08-18 2005-04-20 富士通株式会社 画像データ処理装置
JPH07325916A (ja) 1994-05-31 1995-12-12 Toshiba Corp ２値化装置、２値化方法及び画像情報処理装置
US5819035A (en) * 1995-10-20 1998-10-06 Matsushita Electric Industrial Co., Ltd. Post-filter for removing ringing artifacts of DCT coding
EP1120973B1 (en) * 1996-07-31 2003-04-02 Matsushita Electric Industrial Co., Ltd. Picture decoder and picture decoding method
US5880767A (en) 1996-09-11 1999-03-09 Hewlett-Packard Company Perceptual image resolution enhancement system
US6075926A (en) * 1997-04-21 2000-06-13 Hewlett-Packard Company Computerized method for improving data resolution
EP1365355B1 (en) * 1997-06-02 2016-03-16 Seiko Epson Corporation Edge-enhancement processing apparatus and method
US7113617B2 (en) * 2000-12-12 2006-09-26 Hewlett-Packard Development Company, L.P. Method of computing sub-pixel Euclidean distance maps

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2008505675A (ja) * 2004-07-09 2008-02-28 アロカ株式会社 エッジの検出と強調を行うイメージ処理の方法および装置
JP2012096083A (ja) * 2004-07-09 2012-05-24 Hitachi Aloka Medical Ltd エッジの検出と強調を行うイメージ処理の方法および装置
JP2013099604A (ja) * 2004-07-09 2013-05-23 Hitachi Aloka Medical Ltd エッジの検出と強調を行うイメージ処理の方法および装置

Also Published As

Publication number Publication date
GB2357001B (en) 2003-12-31
US6721457B1 (en) 2004-04-13
GB2357001A (en) 2001-06-06
DE10039648A1 (de) 2001-03-08
GB0019273D0 (en) 2000-09-27

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