Abstract
In many techniques of color image enhancement, processing intensity and saturation keeping hue unaltered is the transformation of the image data from RGB color space to other color space such HSI, YIQ, HSV, etc. Transforming from one space to another and processing in these spaces usually generate gamut problem. In this paper, we have proposed a new enhancement scheme that enables one to apply a class of grey scale image enhancement methods to color images with free from gamut problem since color images are processed within RGB color space. The proposed processing framework guarantees the preserving hue while increasing saturation of enhancement results. The grey scale histogram equalization is applied to our generic framework in order to realize 3-D histogram equalization.
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