关键词: 高动态范围图像, 双边滤波, 分组, 伽马校正

Abstract: Aiming at the defect of low dynamic display device in high dynamic range image display, this paper proposes a high dynamic range image mapping technology through pixel grouping. This paper changes the image luminance using bilateral filtering, then groups them. According to the data’s average, it produces a gamma value to correct the image finally. The experiment shows that, the method not only can realize the dynamic range compression, but also can effectively avoid the phenomenon such as halo and chromatic aberration. It can be widely used in low dynamic range devices.

Key words: high dynamic range, bilateral filtering, grouping, gamma correction