DE60320735D1 - Kontrastausgleich in einem Digitalbild mittels Histogrammentzerrung - Google Patents

Kontrastausgleich in einem Digitalbild mittels Histogrammentzerrung

Info

Publication number
DE60320735D1
DE60320735D1 DE60320735T DE60320735T DE60320735D1 DE 60320735 D1 DE60320735 D1 DE 60320735D1 DE 60320735 T DE60320735 T DE 60320735T DE 60320735 T DE60320735 T DE 60320735T DE 60320735 D1 DE60320735 D1 DE 60320735D1
Authority
DE
Germany
Prior art keywords
digital image
histogram equalization
contrast compensation
compensation
contrast
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.)
Expired - Lifetime
Application number
DE60320735T
Other languages
English (en)
Inventor
Yung-Jun Park
Jae-Hwan Oh
Hyun Kang
Seung-Joon Yang
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.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
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 Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Application granted granted Critical
Publication of DE60320735D1 publication Critical patent/DE60320735D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • G06T5/92—
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/57—Control of contrast or brightness
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/40—Image enhancement or restoration by the use of histogram techniques
DE60320735T 2002-11-07 2003-11-05 Kontrastausgleich in einem Digitalbild mittels Histogrammentzerrung Expired - Lifetime DE60320735D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020020068898A KR20040040699A (ko) 2002-11-07 2002-11-07 콘트라스트 보정 장치 및 방법

Publications (1)

Publication Number Publication Date
DE60320735D1 true DE60320735D1 (de) 2008-06-19

Family

ID=32105678

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60320735T Expired - Lifetime DE60320735D1 (de) 2002-11-07 2003-11-05 Kontrastausgleich in einem Digitalbild mittels Histogrammentzerrung

Country Status (6)

Country Link
US (1) US7359573B2 (de)
EP (1) EP1418543B1 (de)
JP (1) JP2004159344A (de)
KR (1) KR20040040699A (de)
CN (1) CN1302436C (de)
DE (1) DE60320735D1 (de)

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US7573533B2 (en) 2004-10-15 2009-08-11 Genesis Microchip Inc. Method of generating transfer curves for adaptive contrast enhancement
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US7865032B2 (en) * 2006-09-22 2011-01-04 Hewlett-Packard Development Company, L.P. Methods and systems for identifying an ill-exposed image
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TWI423166B (zh) * 2009-12-04 2014-01-11 Huper Lab Co Ltd 判斷輸入影像是否為霧化影像之方法、判斷輸入影像的霧級數之方法及霧化影像濾清方法
US8781248B2 (en) * 2010-01-28 2014-07-15 Stmicroelectronics Asia Pacific Pte. Ltd. Image details preservation and enhancement
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CN103137098B (zh) * 2011-12-02 2015-06-17 联咏科技股份有限公司 色调对应方法
KR101851577B1 (ko) * 2012-09-17 2018-04-24 삼성전자주식회사 유기 발광 다이오드 디스플레이의 동작을 제어할 수 있는 방법들과 장치들
CN104282291A (zh) * 2013-07-08 2015-01-14 联咏科技股份有限公司 图像处理装置及应用其的图像处理方法
KR102196912B1 (ko) * 2014-02-13 2020-12-31 삼성디스플레이 주식회사 표시장치 및 그 구동방법
KR102157245B1 (ko) * 2014-02-18 2020-09-18 삼성디스플레이 주식회사 광원 구동 방법 및 이를 수행하기 위한 표시 장치
CN106557729B (zh) * 2015-09-30 2021-12-21 日本电气株式会社 用于处理人脸图像的设备和方法
KR102524671B1 (ko) * 2018-01-24 2023-04-24 삼성전자주식회사 전자 장치 및 그의 제어 방법
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
US20220237755A1 (en) * 2021-01-28 2022-07-28 Novatek Microelectronics Corp. Image enhancement method and image processing device

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Also Published As

Publication number Publication date
EP1418543A2 (de) 2004-05-12
JP2004159344A (ja) 2004-06-03
US20040091169A1 (en) 2004-05-13
KR20040040699A (ko) 2004-05-13
EP1418543A3 (de) 2004-11-24
US7359573B2 (en) 2008-04-15
CN1302436C (zh) 2007-02-28
EP1418543B1 (de) 2008-05-07
CN1499441A (zh) 2004-05-26

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Legal Events

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