Contrast Enhancement of an Image
2016-08-23
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CONTRAST ENHANCEMENT
Contrast enhancement is done by scaling all the pixels of the image by a constant k.It is
given by
g[m,n]=f[m,n]*k
changing the contrast of an image , changes the range of luminance values present in the image.
Specifying a value above 1 will increase the contrast by making bright samples brighter and
dark samples darker, thus expanding on the range used. A value below 1 will do the opposite
and reduce a smaller range of sample values.
Algorithm Contrast Enhancement
Enter the contrast limits for input and output
Adjust the contrast levels using line equation
Display the contrast enhanced image
matlab
图像
增强
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