Human vision can see the very wide range of luminance scenes with keeping the color constancy. This paper is addressed to improve the image appearance based on Multi-Scale Retinex (
Hiroaki Kotera, Masafumi Fujita, "Image Appearance Improvement by Adaptive Scale-Gain Center/Surround Retinex Model" in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP18), 2002, pp 603 - 607, https://doi.org/10.2352/ISSN.2169-4451.2002.18.1.art00041_2