US Patent 8238687 Local contrast enhancement of images
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Patent abstract
A set of local noise variation values characterizing local noise levels in the input image is calculated. Local contrast enhancement is performed on image forming element values derived from the input image to produce a contrast enhanced image. Values of local noise amplification caused by the local contrast enhancement are ascertained. Noise in the contrast enhanced image is reduced based on the set of local noise variation values and the local noise amplification values.
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Patent Inventor Names
Pavel Kisilev0
Suk Hwan Lim0
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US Patent 08238687 Local contrast enhancement of images US Patent 8238687 Local contrast enhancement of images
Infobox
Patent Number
082386870
Patent Number
82386870
Edits on 23 Sep, 2022
Golden AI
Infobox
Is a
Patent Jurisdiction
Patent Number
082386870
Date of Patent
August 7, 2012
0Patent Application Number
122362610
Date Filed
September 23, 2008
0Patent Primary Examiner
Edits on 15 Dec, 2021
Golden AI
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US Patent 08238687 Local contrast enhancement of images
Infobox
Is a
Patent jurisdiction
Patent number
08238687
Date of patent
August 7, 2012
Patent application number
12236261
Date Filed
September 23, 2008
Patent primary examiner
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