[Numpy-discussion] Counting the Colors of RGB-Image

apo@pda... apo@pda...
Sun Jan 15 09:45:48 CST 2012

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Counting the Colors of RGB-Image, 
nameit im0 with im0.shape = 2500,3500,3
with this code:

tab0 = zeros( (256,256,256) , dtype=int)
tt = im0.view()
tt.shape = -1,3
for r,g,b in tt:
 tab0[r,g,b] += 1


Is there a faster way in numpy to get this result?

MfG elodw

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