Variational Contrast Enhancement of Gray-Scale and RGB Images

  title={Variational Contrast Enhancement of Gray-Scale and RGB Images},
  author={Fabien Pierre and Jean-François Aujol and Aur{\'e}lie Bugeau and Gabriele Steidl and Ta Vinh Thong},
  journal={Journal of Mathematical Imaging and Vision},
The aim of this paper is twofold. First, we propose a new method for enhancing the contrast of gray-value images. We use the difference of the average local contrast measures between the original and the enhanced images within a variational framework. This enables the user to intuitively control the contrast level and the scale of the enhanced details. Moreover, our model avoids large modifications of the original image histogram. Thereby it preserves the global illumination of the scene and it… CONTINUE READING
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