A Novel Approach for Detail-Enhanced Exposure Fusion Using Guided Filter

Harbinder Singh, Vinay Kumar, Sunil Bhooshan
2014 The Scientific World Journal  
In this paper we propose a novel detail-enhancing exposure fusion approach using nonlinear translation-variant filter (NTF). With the captured Standard Dynamic Range (SDR) images under different exposure settings, first the fine details are extracted based on guided filter. Next, the base layers (i.e., images obtained from NTF) across all input images are fused using multiresolution pyramid. Exposure, contrast, and saturation measures are considered to generate a mask that guides the fusion
more » ... ess of the base layers. Finally, the fused base layer is combined with the extracted fine details to obtain detail-enhanced fused image. The goal is to preserve details in both very dark and extremely bright regions without High Dynamic Range Image (HDRI) representation and tone mapping step. Moreover, we have demonstrated that the proposed method is also suitable for the multifocus image fusion without introducing artifacts.
doi:10.1155/2014/659217 pmid:24683353 pmcid:PMC3934388 fatcat:kbconeckpfbc5ec47tur3qxfem