Method and apparatus for processing high dynamic range images

• Main Authors: LI MENG, CHEN HAI, ZHENG JIANHUA, YU QUANHE
• Format: Patent
• Language: Chinese; English
• Published: 23.10.2018
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

The present application provides a method for processing high dynamic range (HDR) images, which can improve the display effect of the HDR images. The method comprises: obtaining statistical information of to-be-processed HDR images; calculating nonlinear hierarchical reference maximum values of the HDR images according to the statistical information; according to the nonlinear hierarchical reference maximum values and multiple preset hierarchical intervals, calculating nonlinear reference maximum values of the HDR images, wherein the hierarchical interval is used to classify the hierarchical reference maximum values, and each of the hierarchical intervals corresponds to a range of values of the nonlinear hierarchical reference maximum values; and according to the nonlinear reference maximum values, adjusting the dynamic range of the HDR images. 本申请提供种处理高动态范围图像的方法，能够提升HDR图像的显示效果。该方法包括：获取待处理的高动态范围HDR图像的统计信息；根据统计信息，计算HDR图像的非线性分级参考最大值；根据非线性分级参考最大值和预设的多个分级区间，计算HDR图像的非线性参考最大值，分级区间用于对分级参考最大值进行分级，每个分级区间对应非线性分级参考最大值的个