Segmented logarithmic tone mapping from HDR to LDR
HDR到LDR图像的分段式对数映射算法

To adapt to low-end display device, High Dynamic Range (HDR) image should be converted into Low Dynamic Range (LDR) image. A sigmoid logarithmic method based on both human eyes' logarithmic response to light and luminance distribution of images is proposed. With low complexity, the algorithm produces low dynamic range images integrating sigmoid and logarithmic algorithms' characteristics in terms of visual quality.