JP6602789B2 - 局所的なコントラスト強調のためのシステムおよび方法 - Google Patents

局所的なコントラスト強調のためのシステムおよび方法 Download PDF

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JP6602789B2
JP6602789B2 JP2016569072A JP2016569072A JP6602789B2 JP 6602789 B2 JP6602789 B2 JP 6602789B2 JP 2016569072 A JP2016569072 A JP 2016569072A JP 2016569072 A JP2016569072 A JP 2016569072A JP 6602789 B2 JP6602789 B2 JP 6602789B2
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histogram
value
luminance
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JP2017522642A (ja
JP2017522642A5 (enExample
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スジト・スリニヴァサン
マイナック・ビスワス
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クアルコム，インコーポレイテッド
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/90—Dynamic range modification of images or parts thereof
    • G06T5/94—Dynamic range modification of images or parts thereof based on local image properties, e.g. for local contrast enhancement
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/40—Image enhancement or restoration using histogram techniques
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T7/00—Image analysis
    • G06T7/90—Determination of colour characteristics
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/30—Subject of image; Context of image processing
    • G06T2207/30204—Marker

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Vision & Pattern Recognition (AREA)
  • Image Processing (AREA)
  • Studio Devices (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Picture Signal Circuits (AREA)
JP2016569072A 2014-05-27 2015-05-12 局所的なコントラスト強調のためのシステムおよび方法 Active JP6602789B2 (ja)

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US14/288,267 US9165210B1 (en) 2014-05-27 2014-05-27 Systems and methods for localized contrast enhancement
US14/288,267 2014-05-27
PCT/US2015/030341 WO2015183542A1 (en) 2014-05-27 2015-05-12 Systems and methods for localized contrast enhancement

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JP2017522642A JP2017522642A (ja) 2017-08-10
JP2017522642A5 JP2017522642A5 (enExample) 2018-06-14
JP6602789B2 true JP6602789B2 (ja) 2019-11-06

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US (1) US9165210B1 (enExample)
EP (1) EP3149701A1 (enExample)
JP (1) JP6602789B2 (enExample)
KR (1) KR102317613B1 (enExample)
CN (1) CN106462950A (enExample)
WO (1) WO2015183542A1 (enExample)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105184754B (zh) * 2015-09-25 2018-03-06 深圳市华星光电技术有限公司 图像对比度增强方法
CN105654438A (zh) * 2015-12-27 2016-06-08 西南技术物理研究所 基于局部直方图均衡的灰度图像拟合增强方法
US10339410B1 (en) 2016-01-13 2019-07-02 Snap Inc. Color extraction of a video stream
CN107818553B (zh) * 2016-09-12 2020-04-07 京东方科技集团股份有限公司 图像灰度值调整方法和装置
EP3296960B1 (en) * 2016-09-15 2018-08-22 Axis AB A method and an arrangement for pseudo coloring of a digital image
KR102615070B1 (ko) * 2016-10-12 2023-12-19 삼성전자주식회사 디스플레이 장치, 및 그 제어방법
CN109308690B (zh) * 2017-07-26 2021-09-21 Tcl科技集团股份有限公司 一种图像亮度均衡方法及终端
CN108447040A (zh) * 2018-02-09 2018-08-24 深圳市朗驰欣创科技股份有限公司 直方图均衡化方法、装置及终端设备
EP3800612A1 (en) * 2019-10-03 2021-04-07 Koninklijke Philips N.V. Method, apparatus and system for normalizing pixel intensity of images
US11375166B2 (en) 2020-09-21 2022-06-28 Microsoft Technology Licensing, Llc Selective colorization of thermal imaging
US11398017B2 (en) 2020-10-09 2022-07-26 Samsung Electronics Co., Ltd. HDR tone mapping based on creative intent metadata and ambient light
US11526968B2 (en) 2020-11-25 2022-12-13 Samsung Electronics Co., Ltd. Content adapted black level compensation for a HDR display based on dynamic metadata
US12014478B2 (en) * 2021-01-22 2024-06-18 Arm Limited Image adjustment based on local contrast
US12086971B2 (en) 2021-08-10 2024-09-10 Samsung Electronics Co., Ltd. Global tone mapping with contrast enhancement and chroma boost

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0944648A (ja) * 1995-08-01 1997-02-14 Sony Corp 画像処理装置及び画像処理方法
DE60137514D1 (de) * 2001-10-31 2009-03-12 Sony Deutschland Gmbh Verfahren zum Verbessern der Qualität eines Bildes
US7545397B2 (en) 2004-10-25 2009-06-09 Bose Corporation Enhancing contrast
US8295596B1 (en) 2005-12-07 2012-10-23 Marvell International Ltd. Adaptive histogram-based video contrast enhancement
US7894668B1 (en) 2006-09-28 2011-02-22 Fonar Corporation System and method for digital image intensity correction
US8009907B1 (en) 2006-11-08 2011-08-30 Marvell International Ltd. Localized, adaptive video contrast enhancement using controlled histogram equalization
US8417046B1 (en) 2008-11-10 2013-04-09 Marvell International Ltd. Shadow and highlight image enhancement
JP2011022779A (ja) * 2009-07-15 2011-02-03 Pioneer Electronic Corp 画像補正装置、画像補正方法及びプログラム
CN101706953B (zh) * 2009-11-13 2015-07-01 北京中星微电子有限公司 基于直方图均衡的图像增强方法和装置
JP5644444B2 (ja) * 2010-12-03 2014-12-24 富士通株式会社 画像表示装置、画像表示方法、および画像処理装置
US8644638B2 (en) 2011-02-25 2014-02-04 Microsoft Corporation Automatic localized adjustment of image shadows and highlights
FR2977054A1 (fr) 2011-06-23 2012-12-28 St Microelectronics Grenoble 2 Procede d'amelioration de la perception visuelle d'une image numerique
CN103377468A (zh) * 2012-04-26 2013-10-30 上海竞天科技股份有限公司 图像处理装置及图像处理方法

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Publication number Publication date
US9165210B1 (en) 2015-10-20
EP3149701A1 (en) 2017-04-05
WO2015183542A1 (en) 2015-12-03
KR102317613B1 (ko) 2021-10-25
JP2017522642A (ja) 2017-08-10
KR20170012383A (ko) 2017-02-02
CN106462950A (zh) 2017-02-22

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