get_kernel_image
- sherpa.astro.ui.get_kernel_image(id: IdType | None = None)
Return the data used by image_kernel.
- Parameters:
id (int, str, or None, optional) – The data set. If not given then the default identifier is used, as returned by
get_default_id
.- Returns:
psf_data
- Return type:
a
sherpa.image.PSFKernelImage
instance- Raises:
sherpa.utils.err.IdentifierErr – If a PSF model has not been created for the data set.
See also
get_psf_image
Return the data used by image_psf.
image_kernel
Display the 2D kernel for a data set in the image viewer.
image_psf
Display the 2D PSF model for a data set in the image viewer.
Examples
Return the image data for the kernel for the default data set:
>>> lplot = get_kernel_image() >>> iplot.y.shape (51, 51)