JP7462458B2 - 画像処理装置、画像処理方法 - Google Patents

画像処理装置、画像処理方法 Download PDF

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Publication number
JP7462458B2
JP7462458B2 JP2020061115A JP2020061115A JP7462458B2 JP 7462458 B2 JP7462458 B2 JP 7462458B2 JP 2020061115 A JP2020061115 A JP 2020061115A JP 2020061115 A JP2020061115 A JP 2020061115A JP 7462458 B2 JP7462458 B2 JP 7462458B2
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Japan
Prior art keywords
luminance
control point
image processing
correction
input
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JP2020061115A
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English (en)
Japanese (ja)
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JP2021162908A (ja
JP2021162908A5 (enExample
Inventor
太介 西尾
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Canon Inc
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Canon Inc
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Publication date
Application filed by Canon Inc filed Critical Canon Inc
Priority to JP2020061115A priority Critical patent/JP7462458B2/ja
Priority to US17/214,338 priority patent/US11657484B2/en
Publication of JP2021162908A publication Critical patent/JP2021162908A/ja
Publication of JP2021162908A5 publication Critical patent/JP2021162908A5/ja
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    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • H04N5/20—Circuitry for controlling amplitude response
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06T—IMAGE DATA PROCESSING OR GENERATION, IN GENERAL
    • G06T5/00—Image enhancement or restoration
    • G06T5/40—Image enhancement or restoration using histogram techniques
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/80—Camera processing pipelines; Components thereof
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; 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
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/71—Circuitry for evaluating the brightness variation
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
    • H04N23/70—Circuitry for compensating brightness variation in the scene
    • H04N23/76—Circuitry for compensating brightness variation in the scene by influencing the image signals

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Image Processing (AREA)
  • Studio Devices (AREA)
  • Facsimile Image Signal Circuits (AREA)
JP2020061115A 2020-03-30 2020-03-30 画像処理装置、画像処理方法 Active JP7462458B2 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP2020061115A JP7462458B2 (ja) 2020-03-30 2020-03-30 画像処理装置、画像処理方法
US17/214,338 US11657484B2 (en) 2020-03-30 2021-03-26 Image processing apparatus to enhance contrast of image, image processing method, and non-transitory computer-readable storage medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2020061115A JP7462458B2 (ja) 2020-03-30 2020-03-30 画像処理装置、画像処理方法

Publications (3)

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JP2021162908A JP2021162908A (ja) 2021-10-11
JP2021162908A5 JP2021162908A5 (enExample) 2023-03-30
JP7462458B2 true JP7462458B2 (ja) 2024-04-05

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US (1) US11657484B2 (enExample)
JP (1) JP7462458B2 (enExample)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11373621B2 (en) * 2020-05-22 2022-06-28 Sharp Kabushiki Kaisha Display device, display control method, and storage medium
JP7756532B2 (ja) 2021-10-01 2025-10-20 三菱重工業株式会社 走行制御装置、車両、走行制御方法及びプログラム
US12126816B2 (en) * 2023-02-24 2024-10-22 BAE Systems Imaging Solutions Inc. Techniques for image data compression automation

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000232583A (ja) 1999-02-09 2000-08-22 Fuji Xerox Co Ltd 画像処理装置、画像処理方法及び記録媒体
JP2016076908A (ja) 2014-10-09 2016-05-12 キヤノン株式会社 撮像装置およびその制御方法、並びにプログラム

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI283396B (en) * 2004-03-23 2007-07-01 Lite On Technology Corp Method for adjusting image contrast
JP2006098614A (ja) 2004-09-29 2006-04-13 Pioneer Electronic Corp コントラスト補正方法、コントラスト補正回路及び表示装置
US20070053587A1 (en) * 2005-08-24 2007-03-08 Ali Walid S Techniques to improve contrast enhancement using a luminance histogram
JP5753393B2 (ja) * 2011-02-04 2015-07-22 キヤノン株式会社 画像処理装置及び方法
JP5948073B2 (ja) * 2012-02-08 2016-07-06 株式会社 日立産業制御ソリューションズ 画像信号処理装置、画像信号処理方法
JP6552325B2 (ja) * 2015-08-07 2019-07-31 キヤノン株式会社 撮像装置、撮像装置の制御方法、及びプログラム
US10019785B2 (en) * 2016-03-07 2018-07-10 Novatek Microelectronics Corp. Method of processing high dynamic range images using dynamic metadata

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000232583A (ja) 1999-02-09 2000-08-22 Fuji Xerox Co Ltd 画像処理装置、画像処理方法及び記録媒体
JP2016076908A (ja) 2014-10-09 2016-05-12 キヤノン株式会社 撮像装置およびその制御方法、並びにプログラム

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US11657484B2 (en) 2023-05-23
JP2021162908A (ja) 2021-10-11
US20210304377A1 (en) 2021-09-30

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