Detail Preserving Multi-Scale Exposure Fusion

Edge-preserving smoothing based multi-scale exposure fusion is a state-of-the-art method to fuse differently exposed images of a high dynamic range (HDR) scene. However, its complexity could be an issue. In this paper, a novel multiscale exposure fusion algorithm is proposed by adopting an approximation method at the highest layer of the pyramid. Experimental results show that the proposed algorithm can be applied to fuse images with comparable or even better quality with the edge-preserving smoothing based multi-scale fusion algorithms. It simplifies the complexity of the edge-preserving smoothing based multi-scale exposure fusion algorithms significantly.