WO2006015058A3 - Adjusting pixels by desired gains and factors - Google Patents

Adjusting pixels by desired gains and factors Download PDF

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Publication number
WO2006015058A3
WO2006015058A3 PCT/US2005/026675 US2005026675W WO2006015058A3 WO 2006015058 A3 WO2006015058 A3 WO 2006015058A3 US 2005026675 W US2005026675 W US 2005026675W WO 2006015058 A3 WO2006015058 A3 WO 2006015058A3
Authority
WO
WIPO (PCT)
Prior art keywords
value
high frequency
frequency value
factors
desired gains
Prior art date
Application number
PCT/US2005/026675
Other languages
French (fr)
Other versions
WO2006015058A2 (en
Inventor
Benjamin D Kimbell
Casey L Miller
Original Assignee
Hewlett Packard Development Co
Benjamin D Kimbell
Casey L Miller
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, Benjamin D Kimbell, Casey L Miller filed Critical Hewlett Packard Development Co
Priority to DE112005001706.0T priority Critical patent/DE112005001706B4/en
Priority to JP2007523774A priority patent/JP4533933B2/en
Publication of WO2006015058A2 publication Critical patent/WO2006015058A2/en
Publication of WO2006015058A3 publication Critical patent/WO2006015058A3/en

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

A low frequency value for a pixel value is adjusted by a desired gain. A first high frequency value for the pixel value is calculated. A second high frequency value is generated for the first high frequency value. The second high frequency value is the first high frequency value adjusted by a factor. The factor is resolved as a function of the first high frequency value and the desired gain. A modified value for the pixel value is outputted, where the modified value is the adjusted low frequency value augmented by the second high frequency value.
PCT/US2005/026675 2004-07-30 2005-07-27 Adjusting pixels by desired gains and factors WO2006015058A2 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112005001706.0T DE112005001706B4 (en) 2004-07-30 2005-07-27 Adjusting pixels by desired gains and factors
JP2007523774A JP4533933B2 (en) 2004-07-30 2005-07-27 Pixel adjustment method with desired gain and coefficient

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US10/909,214 2004-07-30
US10/909,214 US7426314B2 (en) 2004-07-30 2004-07-30 Adjusting pixels by desired gains and factors

Publications (2)

Publication Number Publication Date
WO2006015058A2 WO2006015058A2 (en) 2006-02-09
WO2006015058A3 true WO2006015058A3 (en) 2006-03-16

Family

ID=35457918

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2005/026675 WO2006015058A2 (en) 2004-07-30 2005-07-27 Adjusting pixels by desired gains and factors

Country Status (5)

Country Link
US (1) US7426314B2 (en)
JP (1) JP4533933B2 (en)
CN (1) CN100571327C (en)
DE (1) DE112005001706B4 (en)
WO (1) WO2006015058A2 (en)

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US7929798B2 (en) * 2005-12-07 2011-04-19 Micron Technology, Inc. Method and apparatus providing noise reduction while preserving edges for imagers
KR20090005843A (en) * 2007-07-10 2009-01-14 삼성전자주식회사 Imaging apparatus and method for improving sensitivity thereof
KR100872253B1 (en) * 2007-08-23 2008-12-05 삼성전기주식회사 Method for eliminating noise of image generated by image sensor
CN102113307B (en) * 2008-07-30 2014-04-30 三菱电机株式会社 Image processing device and method, and image display device
JP5324391B2 (en) * 2009-10-22 2013-10-23 キヤノン株式会社 Image processing apparatus and control method thereof
US20130329004A1 (en) * 2012-06-06 2013-12-12 Apple Inc. Method of and Apparatus for Image Enhancement
US9082180B2 (en) * 2012-12-28 2015-07-14 Nvidia Corporation System, method, and computer program product for implementing a spatially varying unsharp mask noise reduction filter
US9525804B2 (en) * 2014-08-30 2016-12-20 Apple Inc. Multi-band YCbCr noise modeling and noise reduction based on scene metadata
US9667842B2 (en) 2014-08-30 2017-05-30 Apple Inc. Multi-band YCbCr locally-adaptive noise modeling and noise reduction based on scene metadata
US9641820B2 (en) 2015-09-04 2017-05-02 Apple Inc. Advanced multi-band noise reduction
EP3671625B1 (en) * 2018-12-18 2020-11-25 Axis AB Method, device, and system for enhancing changes in an image captured by a thermal camera

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EP0398861A2 (en) * 1989-05-15 1990-11-22 Polaroid Corporation Method for adaptively sharpening electronic images
US6058220A (en) * 1990-02-28 2000-05-02 U.S. Philips Corporation Device for scanning an X-ray image
EP0531904A2 (en) * 1991-09-10 1993-03-17 Eastman Kodak Company Method and apparatus for spatially variant filtering
US5732159A (en) * 1995-04-29 1998-03-24 Samsung Electronics Co., Ltd. Blocking-effect eliminating circuit for use in image signal coder/decoder

Also Published As

Publication number Publication date
CN101027896A (en) 2007-08-29
JP2008508800A (en) 2008-03-21
DE112005001706T5 (en) 2007-06-14
DE112005001706B4 (en) 2015-11-26
CN100571327C (en) 2009-12-16
US20060023965A1 (en) 2006-02-02
WO2006015058A2 (en) 2006-02-09
JP4533933B2 (en) 2010-09-01
US7426314B2 (en) 2008-09-16

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