IN2014DN08975A - - Google Patents

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Publication number
IN2014DN08975A
IN2014DN08975A IN8975DEN2014A IN2014DN08975A IN 2014DN08975 A IN2014DN08975 A IN 2014DN08975A IN 8975DEN2014 A IN8975DEN2014 A IN 8975DEN2014A IN 2014DN08975 A IN2014DN08975 A IN 2014DN08975A
Authority
IN
India
Prior art keywords
corrected
lighting component
image
lgain
component
Prior art date
Application number
Inventor
Reo Abe
Masashi Nakao
Masafumi Higashi
Original Assignee
Eizo Corp
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 Eizo Corp filed Critical Eizo Corp
Publication of IN2014DN08975A publication Critical patent/IN2014DN08975A/en

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
    • G06T5/94—Dynamic range modification of images or parts thereof based on local image properties, e.g. for local contrast enhancement
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/02—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators characterised by the way in which colour is displayed
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/20—Image enhancement or restoration using local operators
    • 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
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00—Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/20—Function-generator circuits, e.g. circle generators line or curve smoothing circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/66—Transforming electric information into light information
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/68—Circuits for processing colour signals for controlling the amplitude of colour signals, e.g. automatic chroma control circuits
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/20—Special algorithmic details
    • G06T2207/20172—Image enhancement details
    • G06T2207/20208—High dynamic range [HDR] image processing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/066—Adjustment of display parameters for control of contrast
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0673—Adjustment of display parameters for control of gamma adjustment, e.g. selecting another gamma curve

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Apparatus For Radiation Diagnosis (AREA)

Abstract

[Problem] To prevent image quality degradation caused by overcorrection while improving visibility of dark areas. [Solution] A reflectance calculation unit (27) stores a parameter (RGain) for adjusting the amplitude of a reflectance component (R). A lighting correction unit (25) generates a corrected lighting component (L1) from a lighting component (L) and a formula (L1=(log(LAmp*L+1))/(log(LAmp+1))). An image resynthesis unit (29) obtains a corrected lighting component (L ) from L =LGain*L1+(1 LGain)*L. The image resynthesis unit (29) also calculates a corrected image (Iout) from a formula (Iout=exp(logL +RGain(logI logL))) on the basis of the corrected lighting component (L ) and a corrected reflectance (R ). By determining the value of a corrected lighting component (L ) using a mixture ratio (LGain) of the output value (L1) of the correction function and the original lighting component (L) it is possible to maintain contrast to a certain extent while creating a natural image.
IN8975DEN2014 2012-03-30 2012-08-29 IN2014DN08975A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012078891A JP5247910B1 (en) 2012-03-30 2012-03-30 Image display apparatus or method thereof
PCT/JP2012/071861 WO2013145365A1 (en) 2012-03-30 2012-08-29 Image display device and/or method therefor

Publications (1)

Publication Number Publication Date
IN2014DN08975A true IN2014DN08975A (en) 2015-05-29

Family

ID=49041854

Family Applications (1)

Application Number Title Priority Date Filing Date
IN8975DEN2014 IN2014DN08975A (en) 2012-03-30 2012-08-29

Country Status (8)

Country Link
US (2) US20150123985A1 (en)
EP (1) EP2833317B1 (en)
JP (1) JP5247910B1 (en)
CN (1) CN104221051B (en)
AU (1) AU2012374785B2 (en)
IN (1) IN2014DN08975A (en)
RU (1) RU2617328C2 (en)
WO (1) WO2013145365A1 (en)

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JP6160426B2 (en) * 2013-10-04 2017-07-12 富士ゼロックス株式会社 Image processing apparatus and program
JP6283189B2 (en) * 2013-10-09 2018-02-21 住友電気工業株式会社 Radio wave sensor and detection method
JP2017502429A (en) * 2014-01-10 2017-01-19 富士通株式会社 Image processing apparatus, electronic apparatus and method
KR102141032B1 (en) * 2014-02-25 2020-08-05 삼성디스플레이 주식회사 Image displaying method and display device driving thereof
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JP6357881B2 (en) 2014-05-28 2018-07-18 富士ゼロックス株式会社 Image processing apparatus and program
AU2014397095B2 (en) * 2014-06-12 2018-07-05 Eizo Corporation Haze removal device and image generation method
KR101621614B1 (en) 2014-06-30 2016-05-17 성균관대학교산학협력단 Method and apparatus for enhancing digital image, and apparatus for image processing using the same
US10565756B2 (en) 2014-12-01 2020-02-18 Eizo Corporation Combining drawing media texture and image data for display while maintaining the dynamic range of the original image
WO2016088162A1 (en) * 2014-12-01 2016-06-09 Eizo株式会社 Image conversion method
CN104574377A (en) * 2014-12-24 2015-04-29 南京金智视讯技术有限公司 Method for correcting yellow cast of red lamp of electronic police
JP6548403B2 (en) 2015-02-24 2019-07-24 三星ディスプレイ株式會社Ｓａｍｓｕｎｇ Ｄｉｓｐｌａｙ Ｃｏ．，Ｌｔｄ． IMAGE PROCESSING APPARATUS, IMAGE PROCESSING METHOD, AND PROGRAM
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JP6627530B2 (en) * 2015-08-10 2020-01-08 富士ゼロックス株式会社 Image processing device and program
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WO2018097677A1 (en) * 2016-11-28 2018-05-31 Samsung Electronics Co., Ltd. Image processing apparatus, image processing method, and computer-readable recording medium thereof
KR102342283B1 (en) * 2016-11-28 2021-12-22 삼성전자주식회사 Image processing apparatus, image processing method, and computer readable medium thereof
US10311570B1 (en) * 2018-12-07 2019-06-04 Sonavista, Inc. Medical image based distortion correction mechanism
JP2022097133A (en) 2020-12-18 2022-06-30 富士フイルムビジネスイノベーション株式会社 Image processing device and image processing program
JP2022166693A (en) * 2021-04-21 2022-11-02 シャープセミコンダクターイノベーション株式会社 Optical sensor, electronic apparatus, distance calculation method, and program recording medium

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Also Published As

Publication number Publication date
JP2013210709A (en) 2013-10-10
RU2617328C2 (en) 2017-04-24
EP2833317A1 (en) 2015-02-04
EP2833317B1 (en) 2020-02-19
AU2012374785A1 (en) 2014-11-20
RU2014137568A (en) 2016-05-27
CN104221051A (en) 2014-12-17
US20150123985A1 (en) 2015-05-07
CN104221051B (en) 2018-07-13
WO2013145365A1 (en) 2013-10-03
EP2833317A4 (en) 2016-06-08
AU2012374785B2 (en) 2016-07-14
US10134359B2 (en) 2018-11-20
JP5247910B1 (en) 2013-07-24
US20160372080A1 (en) 2016-12-22

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