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In this paper, we propose a method that optimizes the parameters of tone mapping operators by compressing the dynamic range of HDR images using natural image statistics.First, a prior probability mode...l of a natural image is constructed for color natural images based on a generalized Gaussian distribution.Then, an LDR image is generated by converting the HDR image using the tone mapping operator. Next, we generate a normalized histogram of the LDR image using a discrete wavelet transformation.Finally, the optimal parameters of the tone mapping operator are estimated by minimizing the Kullbuck--Leibler divergence of the probability density function and the normalized histogram.Using these parameters, it is possible to generate an LDR image that closely resembles the natural image.続きを見る
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