References in periodicals archive ?
The features of the image like edges, noise clipping, pseudo coloring, contrast stretching are enhanced.
Autolevels and contrast stretching are good techniques if the images do not contain many dark and bright pixels in the same time.
Contrast stretching increases the dynamic range of gray levels in an image and it is one of the simplest technique for enhancing contrast [10].
g] are the global mean and standard deviation, X as gray scale amplification factor, [beta] and [gamma] for contrast stretching coefficients.