Color Image Enhancement with Preservation of Gamut Range
Myint Myint Maw, Renu - · 2018
Color image enhancement plays a key role in digital image processing more than grayscale image enhancement due to its wide color expressions with three perceptual attributes including hue, saturation and intensity of an image. It has been a popular research since many recent years but it is still an open issue in order to enhance the color for low intensity, blurred or incomplete images, etc. This paper proposes a color enhancement algorithm with an affine algorithm for enhancing illumination in gamut preserving color image enhancement. The proposed method firstly uses non-linear sigmoidal function for luminance enhancement while an improved histogram specification model is used to preserve gamut of an input image. The proposed algorithm is experimented with low intensity images obtained from standard image datasets which are compared with quite popular image enhancement methods. According to the experimental results, the proposed method produces less error rate than other models.