HDR Image Quality Enhancement Based on Spatially Variant Retinal Response
HDR Image Quality Enhancement Based on Spatially Variant Retinal Response
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基于空间变异视网膜响应的 HDR 图像质量增强
DOI：
10.1155/2010/438958
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发表时间：
2010
影响因子：
2.4
通讯作者：
S. Tominaga
中科院分区：
文献类型：
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作者：
T. Horiuchi;S. Tominaga
对于能够在低动态范围（LDR）设备上显示高动态范围（HDR）图像的需求日益增长。色调映射是用于通过将原始图像的色调值从HDR转换为LDR来增强LDR设备上的HDR图像质量的过程。本文提出了一种新的色调映射算法来提高图像质量，通过推导一个空间变化的算子来模仿人类视网膜的S电位反应，有效地提高了局部对比度，同时保持良好的整体外观。从系统构建的角度研究了所提出的色调映射算子。它被发现，该运营商被视为一个自然的Retinex算法的扩展，通过添加一个全局自适应过程的局部适应。利用标准HDR图像和真实的HDR场景图像进行实验，并与传统的色调映射算法进行比较，验证了该算法的可行性。
There is a growing demand for being able to display high dynamic range (HDR) images on low dynamic range (LDR) devices. Tone mapping is a process for enhancing HDR image quality on an LDR device by converting the tonal values of the original image from HDR to LDR. This paper proposes a new tone mapping algorithm for enhancing image quality by deriving a spatially-variant operator for imitating S-potential response in human retina, which efficiently improves local contrasts while conserving good global appearance. The proposed tone mapping operator is studied from a system construction point of view. It is found that the operator is regarded as a natural extension of the Retinex algorithm by adding a global adaptation process to the local adaptation. The feasibility of the proposed algorithm is examined in detail on experiments using standard HDR images and real HDR scene images, comparing with conventional tone mapping algorithms.
通过集成环绕 Retinex 模型进行高动态范围图像压缩
DOI：
--
发表时间：
2005
期刊：
Proceeding of Color Forum JAPAN 2005 9-4
影响因子：
--
作者：
Lijie Wang;Takahiko Horiuchi;Hiroaki Kotera
通讯作者：
Hiroaki Kotera