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  Indian J Med Microbiol
 

Figure 5: Plots showing the variations in the difference between the saturation and luminance, i.e. S-V and the luminance (V) of the fold pixels against different values of the enhancement coefficient, α . Each plot was produced by taking the average of 500 1×1 pixel fold samples for each image. (a) Plot illustrating the tendencies of the S-V values for the two set of images, i.e. scanned by Dmetrix and that of NDP scanner, for different values of α . (b) Plot demonstrating the effect on the luminance of the fold pixels for different values of α . It is observed from this plot that the luminance of the pixels do not significantly vary beyond α =1.5

Figure 5: Plots showing the variations in the difference between the saturation and luminance, i.e. S-V and the luminance (V) of the fold pixels against different values of the enhancement coefficient, α . Each plot was produced by taking the average of 500 1×1 pixel fold samples for each image. (a) Plot illustrating the tendencies of the S-V values for the two set of images, i.e. scanned by Dmetrix and that of NDP scanner, for different values of α . (b) Plot demonstrating the effect on the luminance of the fold pixels for different values of α . It is observed from this plot that the luminance of the pixels do not significantly vary beyond α =1.5