In this paper, a supervised enhancement method dedicated to underwater images is presented. It is well-known that the water alters the light propagation. Underwater images often present low contrast and luminosity. The aim of the proposed method is to correct the effects of the light propagation in the water. This method is based on the physical properties of the light. The originality of this processing is to work without any a priori information about the scene or about the water composition. Experiments show that this method increases the contrast and the color dynamic of underwater images while preserving a good color rendering. In addition, the analysis of the experimental results, conducts a relation between optical parameters and colorimetric attributes.