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Adaptive Local Contrast Enhancement of High Dynamic Range Image

机译:高动态范围图像的自适应局部对比度增强

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摘要

Most existing global contrast enhancement algorithm can not deal with high dynamic range images. Thus a simplified logarithmic transformation equation has been proposed in this paper. A partially overlapped sub-block method is also adopted to perform local contrast enhancement. For purpose of optimization, two contrast measures are used for finding optimal transformation parameters. They merge into a new algorithm, called POSLT (Partially Overlapped Subblock Logarithmic transformation). POSLT exhibits good performance and Controllability even if it has high computational complexity. Our experimental results give firmly support of POSLT.
机译:大多数现有的全局对比度增强算法无法处理高动态范围图像。因此,本文提出了一种简化的对数变换方程。还采用部分重叠的子块方法来执行局部对比度增强。为了优化,使用了两个对比测量来找到最佳变换参数。它们合并为一个新算法,称为POSLT(部分重叠的子块对数变换)。即使POSLT具有很高的计算复杂度,它仍具有良好的性能和可控性。我们的实验结果为POSLT提供了有力的支持。

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