SkyImageList

class gammapy.image.SkyImageList(images=None, meta=None)

Bases: collections.UserList

List of SkyImage objects.

This is a simple class that provides

• FITS I/O
• Dict-like access by string image name keys in addition to list-like access by integer index.

Examples

Load the image collection from a FITS file:

>>> from gammapy.image import SkyImage, SkyImageList
>>> images = SkyImageList.read('$GAMMAPY_EXTRA/datasets/fermi_survey/all.fits.gz')

Which images are available?

>>> images.names

Access one image by list index or image name string key:

>>> images[0]
>>> images['counts']
>>> images['counts'].show('ds9')

Print some summary info about the images:

>>> print(images)

Remove and append an image:

>>> del images['background']
>>> images.