[AstroPy] Transforming an image into polar coordinates and back to cartesian

[Thomas Robitaille]

Hi Maria,

The scipy map_coordinates function might help you do what you need:

http://docs.scipy.org/doc/scipy/reference/generated/scipy.ndimage.interpolation.map_coordinates.html

You can use it to reproject from cartesian to polar using interpolation,
then interpolate it back to cartesian.

Cheers,
Tom

Maria de Juan Ovelar wrote:
> Dear all, 
> 
> I want to transform an image (array) into polar coordinates, operate on it and transform it back to cartesian. I found an entry on the stackoverflow forum with some ideas but I can't manage to recover the image in cartesian properly using those recipes...Is there any scipy or astropy function that can help?
> 
> Thanks!
> Maria
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