15 April 2010 Enhancing low-contrast image by separately processing illuminance and reflectance
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Abstract
A simple method for enhancing low-contrast gray image is proposed. The method decomposes an image into the layers of illuminance and reflectance, by using an edge-preserving low-pass filter, and separately enhances each layer. Finally, the enhanced results of these two layers are recomposed as the output. Experiment shows the good results on real images.
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Rui Huang, Nong Sang, Dapeng Luo, Xiaojun Tong, "Enhancing low-contrast image by separately processing illuminance and reflectance", Proc. SPIE 7701, Visual Information Processing XIX, 77010T (15 April 2010); doi: 10.1117/12.849849; https://doi.org/10.1117/12.849849
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