Niels Provos wrote:
> The missing imports are
> 
> import Numeric # for zeros and ones
> from scipy.fftpack import fft2,ifft2
> 
> Curiously, replacing Numeric.zeros with scipy.zeros makes the problem
> go away.  Why?

Possibly a bug in Numeric.

-- 
Robert Kern

"I have come to believe that the whole world is an enigma, a harmless enigma
 that is made terrible by our own mad attempt to interpret it as though it had
 an underlying truth."
  -- Umberto Eco
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