Tone mapping method based on retinex algorithm using threshold function

Abstract

In this paper, we proposed tone mapping method which uses threshold function. It was impossible for conventional Multi-Scale Retinex algorithm to express detail parts due to damage in bright region of dynamic range at compression processing. We reduce the damage, which occurs in tone mapping process, by setting the threshold of Log Scale image in this algorithm. The experimental tests demonstrated that proposed algorithm reserves detailed information and significantly improves the quality of image, compared to conventional algorithms.