SSF.quantize8 -> [1,255]

matlab/+SSF/quantize8.m

 % clipLimits = [minVal,maxVal];
 function [im, clipLimits] = quantize8(im_in,clipLimits)
 
+im = im_in;
 if isa(im,'uint8')
     return
 end
-im = im_in;
 for c = 1:size(im,4)
     im(:,:,:,c) = max(im(:,:,:,c),clipLimits(c,1));
     im(:,:,:,c) = min(im(:,:,:,c),clipLimits(c,2));
     im(:,:,:,c) = (im(:,:,:,c) - clipLimits(c,1)) ./ (clipLimits(c,2) - clipLimits(c,1));
 end
 im = im2uint8(im);
+im = max(im,1);
 im(0 == im_in) = 0;
\ No newline at end of file