ATE446556T1 - Verfahren und vorrichtung zur kontrasteinstellung eines bildes - Google Patents

Verfahren und vorrichtung zur kontrasteinstellung eines bildes

Info

Publication number
ATE446556T1
ATE446556T1 AT06251101T AT06251101T ATE446556T1 AT E446556 T1 ATE446556 T1 AT E446556T1 AT 06251101 T AT06251101 T AT 06251101T AT 06251101 T AT06251101 T AT 06251101T AT E446556 T1 ATE446556 T1 AT E446556T1
Authority
AT
Austria
Prior art keywords
pixels
type
image
contrast
brightness levels
Prior art date
Application number
AT06251101T
Other languages
English (en)
Inventor
Yucel Altunbasak
Tarik Arici
Toygar Akgun
Original Assignee
Vestel Elekt Sanayi Ve Ticaret
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 Vestel Elekt Sanayi Ve Ticaret filed Critical Vestel Elekt Sanayi Ve Ticaret
Application granted granted Critical
Publication of ATE446556T1 publication Critical patent/ATE446556T1/de

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/20—Circuitry for controlling amplitude response
    • 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
    • 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/14—Picture signal circuitry for video frequency region
    • H04N5/147—Scene change detection

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Picture Signal Circuits (AREA)
  • Television Receiver Circuits (AREA)
  • Apparatus For Radiation Diagnosis (AREA)
  • Color, Gradation (AREA)
  • Projection-Type Copiers In General (AREA)
  • Studio Devices (AREA)
AT06251101T 2006-01-26 2006-03-01 Verfahren und vorrichtung zur kontrasteinstellung eines bildes ATE446556T1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US11/340,913 US7738698B2 (en) 2006-01-26 2006-01-26 Method and apparatus for adjusting the contrast of an image

Publications (1)

Publication Number Publication Date
ATE446556T1 true ATE446556T1 (de) 2009-11-15

Family

ID=36228660

Family Applications (1)

Application Number Title Priority Date Filing Date
AT06251101T ATE446556T1 (de) 2006-01-26 2006-03-01 Verfahren und vorrichtung zur kontrasteinstellung eines bildes

Country Status (8)

Country Link
US (1) US7738698B2 (de)
EP (1) EP1814080B1 (de)
JP (1) JP5123210B2 (de)
KR (1) KR101338501B1 (de)
AT (1) ATE446556T1 (de)
DE (1) DE602006009893D1 (de)
ES (1) ES2333040T3 (de)
WO (1) WO2007085575A1 (de)

Families Citing this family (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5196731B2 (ja) * 2006-04-20 2013-05-15 キヤノン株式会社 画像処理装置及び画像処理方法
US20080122857A1 (en) * 2006-11-29 2008-05-29 Chih-Lin Hsuan Methods and devices for adjusting display characteristic of a video frame according to luminance statistics
US7809210B2 (en) 2006-12-12 2010-10-05 Mitsubishi Digital Electronics America, Inc. Smart grey level magnifier for digital display
US20090110274A1 (en) * 2007-10-26 2009-04-30 Qualcomm Incorporated Image quality enhancement with histogram diffusion
US8111943B2 (en) * 2009-04-15 2012-02-07 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration Smart image enhancement process
US20110110650A1 (en) * 2009-10-06 2011-05-12 Ipera Technology, Inc. Method and system for real-time video playback
US8774554B1 (en) * 2011-05-09 2014-07-08 Exelis, Inc. Bias and plateau limited advanced contrast enhancement
US8774553B1 (en) * 2011-05-09 2014-07-08 Exelis, Inc. Advanced adaptive contrast enhancement
US9111362B2 (en) * 2012-08-22 2015-08-18 Sony Corporation Method, system and apparatus for applying histogram equalization to an image
US20140079319A1 (en) * 2012-09-20 2014-03-20 Htc Corporation Methods for enhancing images and apparatuses using the same
US9147377B2 (en) * 2013-07-31 2015-09-29 Taiwan Semiconductor Manufacturing Company, Ltd. Method for image dithering for lithographic processes
CN104424632B (zh) * 2013-08-23 2017-11-21 浙江大华技术股份有限公司 一种视频对比度异常检测方法及装置
CN104424633B (zh) * 2013-08-23 2018-01-12 浙江大华技术股份有限公司 一种视频对比度异常检测方法及装置
CN104732487B (zh) * 2013-12-20 2017-10-31 比亚迪股份有限公司 一种图像对比度增强方法及系统
CN105303586B (zh) * 2014-07-16 2018-05-11 深圳Tcl新技术有限公司 获取直方图的方法、亮度动态调整的方法及图像处理装置
KR102108537B1 (ko) * 2014-09-29 2020-05-07 에스케이텔레콤 주식회사 열상 영상 명암비 조정 방법 및 이를 이용한 열상 영상 처리 장치
EP3142355B1 (de) * 2015-09-08 2017-10-25 Axis AB Verfahren und vorrichtung zur verbesserung des lokalen kontrasts in einem wärmebild
CN105407296B (zh) * 2015-11-18 2021-03-23 腾讯科技（深圳）有限公司 实时视频增强方法和装置
CN107404600B (zh) * 2016-05-19 2021-08-17 三星Sds株式会社 图像处理装置及方法
US20180045937A1 (en) * 2016-08-10 2018-02-15 Zeta Instruments, Inc. Automated 3-d measurement
KR20180065135A (ko) * 2016-12-07 2018-06-18 삼성전자주식회사 셀프 구조 분석을 이용한 구조 잡음 감소 방법 및 장치
EP3460747B1 (de) 2017-09-25 2023-09-06 Vestel Elektronik Sanayi ve Ticaret A.S. Verfahren, verarbeitungssystem und computerprogramm zur verarbeitung eines bildes
CN110717862B (zh) * 2018-07-11 2022-07-19 瑞昱半导体股份有限公司 基于动态范围压缩的对比增强方法及其电子装置
TWI727306B (zh) * 2019-04-16 2021-05-11 瑞昱半導體股份有限公司 對比調整系統及對比調整方法
CN115499632A (zh) * 2019-10-18 2022-12-20 华为技术有限公司 一种图像信号转换处理方法、装置及终端设备
EP4411592A1 (de) * 2023-02-06 2024-08-07 Sick Ag Verfahren zum lesen eines optischen codes und optoelektronischer codeleser

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4731863A (en) 1986-04-07 1988-03-15 Eastman Kodak Company Digital image processing method employing histogram peak detection
JPH04271669A (ja) 1991-02-27 1992-09-28 Matsushita Electric Ind Co Ltd 階調補正装置
US6463173B1 (en) 1995-10-30 2002-10-08 Hewlett-Packard Company System and method for histogram-based image contrast enhancement
WO1997042600A1 (fr) * 1996-05-02 1997-11-13 Andromis S.A. Procede de traitement d'images obtenues par fibres multicoeurs ou multifibres, en particulier d'images endoscopiques
US6049626A (en) * 1996-10-09 2000-04-11 Samsung Electronics Co., Ltd. Image enhancing method and circuit using mean separate/quantized mean separate histogram equalization and color compensation
US6236751B1 (en) * 1998-09-23 2001-05-22 Xerox Corporation Automatic method for determining piecewise linear transformation from an image histogram
EP1345172A1 (de) * 2002-02-26 2003-09-17 Sony International (Europe) GmbH Kontrastverbesserung in digitalen Bildern
EP1482447A1 (de) 2003-05-30 2004-12-01 Sony International (Europe) GmbH Verfahren und Vorrichtung zum Bildhistogrammausgleich
JP4200890B2 (ja) * 2003-12-10 2008-12-24 株式会社日立製作所 映像信号処理装置及びそれを用いたテレビジョン受信機並びに映像信号処理方法
EP2273449A3 (de) 2004-06-11 2012-07-25 Lyyn Ab Verfahren und Vorrichtung zur Bildverarbeitung durch Histogrammausgleich

Also Published As

Publication number Publication date
US7738698B2 (en) 2010-06-15
ES2333040T3 (es) 2010-02-16
JP2009524959A (ja) 2009-07-02
JP5123210B2 (ja) 2013-01-23
EP1814080B1 (de) 2009-10-21
WO2007085575A1 (en) 2007-08-02
US20070172145A1 (en) 2007-07-26
KR20080093111A (ko) 2008-10-20
EP1814080A1 (de) 2007-08-01
KR101338501B1 (ko) 2013-12-10
DE602006009893D1 (de) 2009-12-03

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