Enhancing low-contrast image by separately processing illuminance and reflectance

Rui Huang; Nong Sang; Dapeng Luo; Xiaojun Tong

doi:10.1117/12.849849

15 April 2010 Enhancing low-contrast image by separately processing illuminance and reflectance

Rui Huang, Nong Sang, Dapeng Luo, Xiaojun Tong

Proceedings Volume 7701, Visual Information Processing XIX; 77010T (2010) https://doi.org/10.1117/12.849849
Event: SPIE Defense, Security, and Sensing, 2010, Orlando, Florida, United States

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.

Citation Download Citation

Rui Huang, Nong Sang, Dapeng Luo, and Xiaojun Tong "Enhancing low-contrast image by separately processing illuminance and reflectance", Proc. SPIE 7701, Visual Information Processing XIX, 77010T (15 April 2010); https://doi.org/10.1117/12.849849

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