[Numpy-discussion] Bilateral filter

Nadav Horesh nadavh@visionsense....
Sun Mar 1 13:36:33 CST 2009


1. "dimensions" is a field in the C struct, that describes the array object.
2. Is there a chance that the header file numpy/arrayobject.h belongs to a 
   different numpy version that you run?

I am not very experienced with cython (I suppose that Stefan has some experience).
As you said, probably the cython list is a  better place to look for an answer. I would be happy to see how this issue resolved.

  Nadav



-----הודעה מקורית-----
מאת: numpy-discussion-bounces@scipy.org בשם Zachary Pincus
נשלח: א 01-מרץ-09 20:59
אל: Discussion of Numerical Python
נושא: Re: [Numpy-discussion] Bilateral filter
 
>> Well, the latest cython doesn't help -- both errors still appear as
>> below. (Also, the latest cython can't run the numpy tests either.)  
>> I'm
>> befuddled.
>
> That's pretty weird.  Did you remove the .so that was build as well as
> any source files, before doing build_ext with the latest Cython?  Also
> good to make sure that the latest Cython is, in fact, the one being
> used.

Yeah... and I just tried that again, with the same results. I have no  
idea what could be going wrong. E.g. why would 'cimport numpy as np'  
not add np to the namespace on my machine whereas it does so on yours...

Also, I assume that constructs like:
         cdef int i, dim = data.dimensions[0]
are some special numpy-support syntax that's supposed to be added by  
the cimport numpy line? (Because numpy arrays don't expose a  
'dimensions' attribute to python code...) It's like for some reason on  
my machine, cython isn't building its numpy support correctly. Which  
is understandable in the light of the fact that cython can't pass the  
numpy tests on my machine either. Odd indeed. Maybe I'll try on the  
cython list, since you guys seem to have demonstrated that the problem  
isn't in the bilateral code!

Zach
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