hi, i have reduced an gray image to 32 gray levels. now I want bit pattern of each level of 32 levels. I dont know how it will be. should I take a histogram of 32 gray level image ? but after taking histogram how can I take bit pattern of each level?

I have used this statement for taking 32 gray levels of image. y32 = uint8(floor(double(im)/8));

[KALYAN ACHARJYA]

What exactly you want, each pixel required minimum 5 bits to represents each pixel, you are asking bit planes?

[samreen mughal]

If I define in steps then it is like that first reduce image into 32 gray levels, binarize each level, reduce each level into 8 by 8 metric, determine threshold to generate finger prints and construct fully connected graph g=(V,E). I don't know how it will done?