JP2007067687A5 - - Google Patents

Download PDF

Info

Publication number
JP2007067687A5
JP2007067687A5 JP2005249784A JP2005249784A JP2007067687A5 JP 2007067687 A5 JP2007067687 A5 JP 2007067687A5 JP 2005249784 A JP2005249784 A JP 2005249784A JP 2005249784 A JP2005249784 A JP 2005249784A JP 2007067687 A5 JP2007067687 A5 JP 2007067687A5
Authority
JP
Japan
Prior art keywords
luminance
histogram data
luminance level
frequency
dispersion
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.)
Granted
Application number
JP2005249784A
Other languages
English (en)
Japanese (ja)
Other versions
JP2007067687A (ja
JP4504284B2 (ja
Filing date
Publication date
Application filed filed Critical
Priority to JP2005249784A priority Critical patent/JP4504284B2/ja
Priority claimed from JP2005249784A external-priority patent/JP4504284B2/ja
Priority to US11/508,229 priority patent/US20070046828A1/en
Priority to CNB2006101288045A priority patent/CN100463494C/zh
Publication of JP2007067687A publication Critical patent/JP2007067687A/ja
Publication of JP2007067687A5 publication Critical patent/JP2007067687A5/ja
Application granted granted Critical
Publication of JP4504284B2 publication Critical patent/JP4504284B2/ja
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

JP2005249784A 2005-08-30 2005-08-30 映像信号処理装置及び映像信号処理方法 Expired - Fee Related JP4504284B2 (ja)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2005249784A JP4504284B2 (ja) 2005-08-30 2005-08-30 映像信号処理装置及び映像信号処理方法
US11/508,229 US20070046828A1 (en) 2005-08-30 2006-08-23 Video signal processing apparatus and video signal processing method
CNB2006101288045A CN100463494C (zh) 2005-08-30 2006-08-30 视频信号处理设备及视频信号处理方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2005249784A JP4504284B2 (ja) 2005-08-30 2005-08-30 映像信号処理装置及び映像信号処理方法

Publications (3)

Publication Number Publication Date
JP2007067687A JP2007067687A (ja) 2007-03-15
JP2007067687A5 true JP2007067687A5 (enExample) 2007-12-06
JP4504284B2 JP4504284B2 (ja) 2010-07-14

Family

ID=37803543

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2005249784A Expired - Fee Related JP4504284B2 (ja) 2005-08-30 2005-08-30 映像信号処理装置及び映像信号処理方法

Country Status (3)

Country Link
US (1) US20070046828A1 (enExample)
JP (1) JP4504284B2 (enExample)
CN (1) CN100463494C (enExample)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4556982B2 (ja) * 2007-10-01 2010-10-06 ソニー株式会社 映像信号処理装置および映像信号処理方法
KR101397036B1 (ko) 2007-11-30 2014-05-20 엘지전자 주식회사 영상기기의 영상 신호 출력 방법 및 그 방법을 채용한영상기기
CN101340510B (zh) * 2008-08-07 2010-06-23 中兴通讯股份有限公司 一种视频增强的方法及其装置
JP5201038B2 (ja) * 2009-03-18 2013-06-05 株式会社Ｊｖｃケンウッド 映像信号処理方法及び映像信号処理装置
WO2010113230A1 (ja) * 2009-03-31 2010-10-07 パナソニック株式会社 映像信号処理方法
JP5165076B2 (ja) * 2011-01-31 2013-03-21 シャープ株式会社 映像表示装置
CN111063319B (zh) * 2018-10-16 2021-05-18 深圳Tcl新技术有限公司 基于背光调整的图像动态增强方法、装置和计算机设备
JP7185656B2 (ja) * 2020-03-30 2022-12-07 Ｔｖｓ Ｒｅｇｚａ株式会社 映像信号処理装置および映像信号処理方法

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2512562B2 (ja) * 1989-10-12 1996-07-03 松下電器産業株式会社 階調補正装置
JPH1023347A (ja) * 1996-07-02 1998-01-23 Matsushita Electric Ind Co Ltd 階調補正装置
FI104521B (fi) * 1997-01-30 2000-02-15 Nokia Multimedia Network Termi Menetelmä kuvasekvenssien kontrastin parantamiseksi
US5949918A (en) * 1997-05-21 1999-09-07 Sarnoff Corporation Method and apparatus for performing image enhancement
JP3790879B2 (ja) * 1998-08-05 2006-06-28 コニカミノルタビジネステクノロジーズ株式会社 画像処理装置、画像処理方法及び画像処理プログラムを記録した記録媒体
TWI231701B (en) * 2001-06-14 2005-04-21 Matsushita Electric Industrial Co Ltd Automatic tone correction device, automatic tone correction method, and tone correction program recording medium
EP1345172A1 (en) * 2002-02-26 2003-09-17 Sony International (Europe) GmbH Contrast enhancement for digital images
JP4373128B2 (ja) * 2003-05-19 2009-11-25 パナソニック株式会社 階調補正装置
JP4533330B2 (ja) * 2005-04-12 2010-09-01 キヤノン株式会社 画像形成装置及び画像形成方法
US7352410B2 (en) * 2005-05-31 2008-04-01 Kolorific, Inc. Method and system for automatic brightness and contrast adjustment of a video source
JP4551836B2 (ja) * 2005-07-29 2010-09-29 株式会社東芝 映像信号処理装置及び映像信号処理方法

Similar Documents

Publication Publication Date Title
CN112598612B (zh) 一种基于照度分解的无闪烁暗光视频增强方法及装置
CN101303765B (zh) 一种基于图像均方差的图像对比度增强方法
CN102142135B (zh) 用于基于图像特征强调边缘的图像生成设备和方法
JP2008295059A5 (enExample)
EP1575164A3 (en) Sound signal processing apparatus and sound signal processing method
JP2009259298A5 (enExample)
CN101673515B (zh) 动态背光控制方法
CN103295206A (zh) 一种基于Retinex的微光图像增强方法和装置
KR101239246B1 (ko) 명암 향상을 위한 히스토그램-모델링 기반 알고리즘
JP2009253646A5 (enExample)
CN110211049B (zh) 基于Retinex理论的图像增强方法、装置和设备
TW201011691A (en) Method for adjusting brightness of images
US20130101212A1 (en) Automatic Sharpening of Images
CN104299600B (zh) 图像显示装置及其图像优化方法
CN103380451A (zh) 视频显示装置
US20160314371A1 (en) Image processing apparatus and method, and electronic equipment
CN1700737A (zh) 能够防止噪声增强的伽玛校正设备和方法
EP1571592A3 (en) Image signal processor and image signal processing method
US7835585B2 (en) Method and device for processing an image signal
CN101197910A (zh) 图像锐化装置与其方法
EP1646221A3 (en) Image processing device, image processing method, image processing program and recording medium
TW201505014A (zh) 背光調整影像的強化方法及系統
CN101630485B (zh) 用于数字显示系统的背光驱动方法和装置
WO2017006619A1 (ja) 画像処理装置、表示装置及びプログラム
TWI501218B (zh) 影像顯示裝置及其影像優化方法