[AstroPy] Rotate an image and create new FITS header with updated astrometry

[Simon Conseil]

Hi all,

We have some code to rotate an image with a given angle:

http://mpdaf.readthedocs.io/en/latest/image.html#image-geometrical-manipulation

http://mpdaf.readthedocs.io/en/latest/api/mpdaf.obj.Image.html#mpdaf.obj.Image.rotate

It uses scipy.ndimage.affine_transform, and should give the same result 
as reproject, which uses scipy.ndimage.map_coordinates (both rely on 
ndimage.geometric_transform). It would be interesting to compare !

Cheers,

Simon



Le 16/11/2016 à 13:46, Brigitta Sipocz a écrit :
>
> Hi Marcio,
>
> While it doesn't do exactly what you ask for, you may want to check 
> out the affiliated package reproject 
> (http://reproject.readthedocs.io/en/stable/ 
> <http://reproject.readthedocs.io/en/stable/>). It does flux conserving 
> image reprojection:
>
> http://reproject.readthedocs.io/en/stable/ 
> <http://reproject.readthedocs.io/en/stable/>
>
> Cheers,
>  Brigitta
>
> On 15 November 2016 at 14:26, Marcio Melendez 
> <marcio.melendez at gmail.com <mailto:marcio.melendez at gmail.com>> wrote:
>
>     Hi all,
>     Is there a similar function to IDL's  HROT in python, e.g., a
>     function to rotate an image and create a new FITS header with
>     updated astrometry.
>
>     Thanks!
>
>     -- 
>     Marcio B. Melendez, Ph.D
>     JWST ISIM Optics Support Scientist
>     KBRwyle Science, Technology and Engineering Group
>     NASA Goddard Space Flight Center  Greenbelt, MD  20771
>     Bldg. 29 Rm. T29-10, phone: 301-286-8517 <tel:301-286-8517>
>
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