Multi-scale detail-preserving tone mapping with adaptive gamma compression

Tone mapping is a technology to display a high-dynamic-range(HDR) image on a low-dynamic-range device by compressing the dynamic range. In this paper, we propose a method to preserve fine details and overall color tone by image multi-layer decomposition and reconstruction. The HDR image is first decomposed into multi-scale detail layers with the weighted least square(WLS)filter based on extremes. These layers are then adjusted by localized gamma factors according to pixel values' changes in local regions. Color balance correction is adopted to reduce color distortion. Experiments results demonstrate that our method preserves overall visibility and the resulted image are visually pleasing, which is also competitive with other state-of-art methods.