高动态范围图像及反色调映射算子

摘要

近年来,高动态范围(high dynamic range,HDR)图像在学术研究和各种应用领域都受到广泛的关注,成为图像处理领域的一个研究热点.首先,对HDR图像的捕获方法以及编码格式进行归纳介绍.然后,对目前已有的从低动态范围图像获取HDR图像的算子,即反色调映射算子,进行分类归纳,并对每种算子进行详细论述,比较它们的关键特性,分析它们的优缺点,为反色调映射算子的具体应用和理论研究打下基础.%In recent years, the high dynamic range (HDR) image has received extensive concern in image research area and applications, and it has been a research focus in image processing area. The capture technology and encoding format of HDR images are introduced firstly, then the existing inverse/reverse tone mapping operators (iTMOs) to obtain HDR images from low dynamic range images are classified. The key characters of these operators are compared and discussed. These lay the foundations for the application and research of the iTMOs.