CN114467110A - 图像动态范围处理方法和装置 - Google Patents

图像动态范围处理方法和装置 Download PDF

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Publication number
CN114467110A
CN114467110A CN202180005691.2A CN202180005691A CN114467110A CN 114467110 A CN114467110 A CN 114467110A CN 202180005691 A CN202180005691 A CN 202180005691A CN 114467110 A CN114467110 A CN 114467110A
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China
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coordinate value
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maximum
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CN202180005691.2A
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English (en)
Inventor
王弋川
余全合
陈虎
徐巍炜
伊蕾娜·亚历山德罗夫娜·阿尔希娜
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Publication of CN114467110A publication Critical patent/CN114467110A/zh
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    • 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
    • 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
    • G06T3/00—Geometric image transformations in the plane of the image
    • G06T3/40—Scaling of whole images or parts thereof, e.g. expanding or contracting
    • G06T3/4007—Scaling of whole images or parts thereof, e.g. expanding or contracting based on interpolation, e.g. bilinear interpolation
    • 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
    • G06T2207/00—Indexing scheme for image analysis or image enhancement
    • G06T2207/10—Image acquisition modality
    • G06T2207/10024—Color image
    • 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

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Image Processing (AREA)
  • Facsimile Image Signal Circuits (AREA)
  • Studio Devices (AREA)

Abstract

本申请提供了一种图像动态范围处理方法和装置，其中，方法包括：获取第一三次样条曲线相关的第一插值点的第一坐标值和第三插值点的第一坐标值；根据待处理图像的第一亮度区间的直方图信息，确定第一三次样条曲线相关的第二插值点的第一坐标值，第一亮度区间为第一插值点的第一坐标值和第三插值点的第一坐标值之间的区间，第一插值点的第一坐标值、第二插值点的第一坐标值以及第三插值点的第一坐标值用于确定第一三次样条曲线的函数，第一三次样条曲线的函数用于将待处理图像中亮度值位于第一亮度区间内的像素的亮度值映射为第一目标亮度值，从而修正待处理图像的动态范围。本申请提升了图像的显示效果。

Description

PCT国内申请，说明书已公开。

Claims (76)

  1. PCT国内申请，权利要求书已公开。
CN202180005691.2A 2020-05-08 2021-03-29 图像动态范围处理方法和装置 Pending CN114467110A (zh)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CN202010383489.0A CN113628106A (zh) 2020-05-08 2020-05-08 图像动态范围处理方法和装置
CN2020103834890 2020-05-08
PCT/CN2021/083616 WO2021223542A1 (zh) 2020-05-08 2021-03-29 图像动态范围处理方法和装置

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CN114467110A true CN114467110A (zh) 2022-05-10

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CN202180005691.2A Pending CN114467110A (zh) 2020-05-08 2021-03-29 图像动态范围处理方法和装置

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US (1) US20230140259A1 (zh)
EP (1) EP4138029A4 (zh)
JP (1) JP7454704B2 (zh)
KR (1) KR20230005996A (zh)
CN (2) CN113628106A (zh)
WO (1) WO2021223542A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024099389A1 (zh) * 2022-11-10 2024-05-16 北京奇艺世纪科技有限公司 视频数据处理方法、视频显示方法及装置、电子设备及可读存储介质

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CN116466899A (zh) * 2022-01-12 2023-07-21 华为技术有限公司 图像处理方法及电子设备

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US8285071B2 (en) 2007-09-10 2012-10-09 Himax Technologies Limited Content-adaptive contrast improving method and apparatus for digital image
JP4982399B2 (ja) 2008-01-30 2012-07-25 株式会社リコー 画像処理装置および画像処理方法および画像処理プログラムおよび撮像装置
JP2010074222A (ja) * 2008-09-16 2010-04-02 Sony Corp 画像処理装置、輝度変換曲線補正方法およびプログラム
CN102231264B (zh) * 2011-06-28 2013-03-06 王洪剑 动态对比度增强装置和方法
CN103281537B (zh) * 2013-05-23 2016-06-08 华为技术有限公司 一种图像动态范围压缩方法及装置
JP2015011585A (ja) 2013-06-28 2015-01-19 株式会社リコー 画像処理装置、画像形成装置、画像形成システム、画像処理方法およびプログラム
US10863201B2 (en) * 2015-12-21 2020-12-08 Koninklijke Philips N.V. Optimizing high dynamic range images for particular displays
US10742945B2 (en) * 2017-09-13 2020-08-11 Panasonic Intellectual Property Management Co., Ltd. Luminance characteristics generation method
CN109785239B (zh) * 2017-11-13 2021-05-04 华为技术有限公司 图像处理的方法和装置
CN112215760A (zh) * 2019-07-11 2021-01-12 华为技术有限公司 一种图像处理的方法及装置

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024099389A1 (zh) * 2022-11-10 2024-05-16 北京奇艺世纪科技有限公司 视频数据处理方法、视频显示方法及装置、电子设备及可读存储介质

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JP2023525274A (ja) 2023-06-15
KR20230005996A (ko) 2023-01-10
EP4138029A1 (en) 2023-02-22
EP4138029A4 (en) 2023-10-25
WO2021223542A1 (zh) 2021-11-11
US20230140259A1 (en) 2023-05-04
JP7454704B2 (ja) 2024-03-22
CN113628106A (zh) 2021-11-09

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