[Insight-users] itk python wrapper quality is far from itk c++ quality

[Gaetan Lehmann]

Hi,

I'm currently trying to use ITK in python, and I must say it's really hard  
for several reasons :

+ lots of filters are missing (for example, most of morpho filters,  
IntensityWindowingImageFilter, ...)
+ somes filters simply don't works. For example,  
itkRescaleIntensityImageFilter don't support SetInput (!)
+ One of the wonderfull feature of python is to be able explore  
attributes. With ipython, we can complete attributes name with <tab> like  
bash completion. This make prototyping really easier. With ITK, I just get  
an error message when hitting TAB to complete the name of an attribute.  
The naming policy produce a large number of name (120 different names for  
itkRescaleIntensityImageFilter for example). This large amount of names  
makes completion difficult to use.
+ Simple array-like objetcs like Size, Index, ... don't use python  
interface. They can't be accessed with index[0] = value and there is no  
automatic conversion from python array or tuple object to those ones.
+ help function list attributes but not doc of attributes
+ How can we use colored image ?
+ ...

Make all classes avaible and make it work seems to be the minimal things  
to do.
I tried to fix some problems (missing filters for the moment) but the  
lacks of documentation make it really hard.
Why is there BasicFilters A and B ?
All filters have not the same types avaible. How types are choosed for a  
given filter ?
How inheritance is managed ?
...

Regards,

   Gaetan.

-- 
Gaetan Lehmann <gaetan.lehmann at jouy.inra.fr>
Tel: +33 1 34 65 22 34
Biologie du Développement et de la Reproduction
INRA de Jouy-en-Josas (France)