Abstract
Exposure fusion is an efficient way to produce a high-quality image for common Low Dynamic Range (LDR) output devices from multiple differently exposed LDR images of the same scene, which has significant potential to be applied in the ubiquitous multimedia area. Generating the fused image with high local contrast from fewer exposed images is still a challenging task. A novel method is proposed in this paper to fuse two differently exposed images based on the spatial distribution of intensity, which consists of two steps. First, the weights are computed based on the background context of the average image for producing the initial fused image. Then, we propose to enhance the initial fused image through removing the background context and efficiently refuse them. So the proposed method improves the local contrast in the dark region and keeps the color in the bright region. Experimental results and comparisons with the existing exposure fusion methods demonstrate that the proposed method has better performance and is convenient for GPU realization.
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Acknowledgements
The authors would like to thank Professor Geyong Min for valuable advice. This work has been partially supported by the National Natural Science Foundation of China (Grant No. 61075010), and by the Fundamental Research Funds for the Central Universities (HUST: CXY12Q030 and CXY12Q031).
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Yu, M., Song, E., Jin, R. et al. A novel method for fusion of differently exposed images based on spatial distribution of intensity for ubiquitous multimedia. Multimed Tools Appl 74, 2745–2761 (2015). https://doi.org/10.1007/s11042-013-1660-0
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DOI: https://doi.org/10.1007/s11042-013-1660-0