Multi-exposure fusion for high dynamic range scene

Due to the existing limited dynamic range a camera cannot reveal all the details in a high-dy-namic range scene.In order to solve this problem, this paper presents a multi-exposure fusion meth-od for getting high quality images in high dynamic range scene.First, a set of multi-exposure images is obtained by multiple exposures in a same scene and their brightness condition is analyzed.Then, multi-exposure images under the same scene are decomposed using dual-tree complex wavelet trans-form ( DT-CWT) , and their low and high frequency components are obtained.Weight maps accord-ing to the brightness condition are assigned to the low components for fusion.Maximizing the region Sum Modified-Laplacian ( SML ) is adopted for high-frequency components fusing.Finally, the fused image is acquired by subjecting the low and high frequency coefficients to inverse DT-CWT. Experimental results show that the proposed approach generates high quality results with uniform dis-tributed brightness and rich details.The proposed method is efficient and robust in varies scenes.