Hi Christopher! Thank you very much for the elucidations; now I know that this is a feature (also, the initial array seems to be mapped directly to the image representation in memory, which implies that it is visible as read only from NumPy unless you make a full copy of it).
Your suggested solution works well for me. -- Sincerely yours, Yury V. Zaytsev _______________________________________________ Image-SIG maillist - Image-SIG@python.org http://mail.python.org/mailman/listinfo/image-sig