from morph import *
from Numeric import sum
f=mmreadgray('bamboo.tif');
fbin=mmthreshad(f,180);
Warning: Converting input image from int32 to uint8.
h=mmpatspec(fbin);
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hneg=mmpatspec(mmneg(fbin));
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mmshow(fbin);
mmplot([[(h+0.)/sum(h)]],[['style','histeps']])
[Errno 22] Invalid argument
mmplot([[(hneg+0.)/sum(hneg)]],[['style','histeps']])
[Errno 22] Invalid argument