Color plays a significant role in the scene interpretation in terms of visual perception. Numerous visual substitution
systems deal with grayscale images disregarding this information from original image. Visually percept color-based
details often fade due to the grayscale conversion and that can mislead the overall comprehension of the considered
scene. We present a decolorization method that considers color contrast and preserve color saliency after transformation.
We exploit this model to enhance the perception of visually disable persons over the interpreted images by the
substitution system. The results demonstrate that our enhance system is capable to improves the overall scene
interpretation in comparison with similar substitution system.