DE69717518D1 - Bildverbesserungsverfahren durch Histogramm-Entzerrung mit Mittelwertübereinstimmung und Schaltung dafür - Google Patents

Bildverbesserungsverfahren durch Histogramm-Entzerrung mit Mittelwertübereinstimmung und Schaltung dafür

Info

Publication number
DE69717518D1
DE69717518D1 DE69717518T DE69717518T DE69717518D1 DE 69717518 D1 DE69717518 D1 DE 69717518D1 DE 69717518 T DE69717518 T DE 69717518T DE 69717518 T DE69717518 T DE 69717518T DE 69717518 D1 DE69717518 D1 DE 69717518D1
Authority
DE
Germany
Prior art keywords
image enhancement
enhancement method
histogram equalization
circuit therefor
agreement
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 - Fee Related
Application number
DE69717518T
Other languages
English (en)
Other versions
DE69717518T2 (de
Inventor
Young-Taek Kim
Yong-Hun Cho
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
Priority claimed from KR1019960006219A external-priority patent/KR0183830B1/ko
Priority claimed from KR1019960011624A external-priority patent/KR100188679B1/ko
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Application granted granted Critical
Publication of DE69717518D1 publication Critical patent/DE69717518D1/de
Publication of DE69717518T2 publication Critical patent/DE69717518T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR 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
    • G06T5/92—Dynamic range modification of images or parts thereof based on global image properties
    • 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 using histogram techniques

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Picture Signal Circuits (AREA)
  • Television Receiver Circuits (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)
DE69717518T 1996-03-09 1997-03-07 Bildverbesserungsverfahren durch Histogramm-Entzerrung mit Mittelwertübereinstimmung und Schaltung dafür Expired - Fee Related DE69717518T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1019960006219A KR0183830B1 (ko) 1996-03-09 1996-03-09 평균 분리 히스토그램 등화를 이용한 화질 개선방법 및 그 회로
KR1019960011624A KR100188679B1 (ko) 1996-04-17 1996-04-17 밝기보상기능을 가진 평균 분리 히스토그램 등화를이용한화질개선방법과그회로

Publications (2)

Publication Number Publication Date
DE69717518D1 true DE69717518D1 (de) 2003-01-16
DE69717518T2 DE69717518T2 (de) 2003-04-24

Family

ID=26631671

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69717518T Expired - Fee Related DE69717518T2 (de) 1996-03-09 1997-03-07 Bildverbesserungsverfahren durch Histogramm-Entzerrung mit Mittelwertübereinstimmung und Schaltung dafür

Country Status (6)

Country Link
US (1) US5963665A (de)
EP (1) EP0794514B1 (de)
JP (1) JP3130266B2 (de)
CN (1) CN1075917C (de)
DE (1) DE69717518T2 (de)
ES (1) ES2188863T3 (de)

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JP5509750B2 (ja) * 2009-01-15 2014-06-04 カシオ計算機株式会社 画像処理装置、及びプログラム
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CN102014279B (zh) * 2010-12-20 2012-10-03 杭州华三通信技术有限公司 一种视频图像对比度增强方法和装置
CN102288945B (zh) * 2011-05-11 2012-11-28 成都成电电子信息技术工程有限公司 一种船用雷达图像增强方法
US9307162B2 (en) * 2014-05-21 2016-04-05 Himax Imaging Limited Local enhancement apparatus and method to generate high dynamic range images by blending brightness-preserved and brightness-adjusted blocks
CN104574328A (zh) * 2015-01-06 2015-04-29 北京环境特性研究所 一种基于直方图分割的彩色图像增强方法
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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
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Also Published As

Publication number Publication date
JPH09331486A (ja) 1997-12-22
EP0794514A2 (de) 1997-09-10
EP0794514A3 (de) 1998-01-21
CN1075917C (zh) 2001-12-05
DE69717518T2 (de) 2003-04-24
US5963665A (en) 1999-10-05
JP3130266B2 (ja) 2001-01-31
ES2188863T3 (es) 2003-07-01
CN1168049A (zh) 1997-12-17
EP0794514B1 (de) 2002-12-04

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Legal Events

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8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee