gray image and segmentation...

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reza
reza 2013-11-24
I am rather new to matlab, but I was hoping someone could help with this question. So I have a color image that I want to convert to grayscale and then reduce the number of gray levels. So I read in the image and I used rgb2gray() to convert the image to grayscale. Now, i want to calculating the number of gray levels of it(min and max) with GLCM, after that how can i reduce the number of gray levels with: 1- histogram 2- linear transformation

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