Utilities (photutils.utils)

This subpackage provides general-purpose utility functions.

Functions

calc_total_error(data, bkg_error, effective_gain)	Calculate a total error array, combining a background-only error array with the Poisson noise of sources.
circular_footprint(radius[, dtype])	Create a circular footprint.
make_random_cmap([ncolors, seed])	Make a matplotlib colormap consisting of (random) muted colors.

Classes

CutoutImage(data, position, shape[, mode, ...])	Create a cutout object from a 2D array.
ImageDepth(aper_radius, *[, nsigma, ...])	Class to calculate the limiting flux and magnitude of an image.
NoDetectionsWarning	A warning class to indicate no sources were detected.
ShepardIDWInterpolator(coordinates, values)	Class to perform Inverse Distance Weighted (IDW) interpolation.

Class Inheritance Diagram