MATLAB: How to do Contrast Enhancement of color image

color enhancementcontrast enhancementImage Processing Toolbox

unable to use histeq inbuild function on color image.

Best Answer

Not sure what you mean by that. But there are several possibilities. You could convert the image to hsv color space with rgb2hsv, then use imadjust on the v channel, and convert back to RGB with hsv2rgb.
Or you could do the same thing on the s channel to make the colors more vivid.
Or you could use imfilter on the v channel to enhance edges.
These all produce different effects.