Elliptical Isophote Fitting (photutils.isophote)

This subpackage contains tools for fitting elliptical isophotes to galaxy images.

Functions

build_ellipse_model(shape, isolist[, fill, ...])	Build a model elliptical galaxy image from a list of isophotes.
first_and_second_harmonic_function(phi, c)	Compute the harmonic function value used to calculate the corrections for ellipse fitting.
fit_first_and_second_harmonics(phi, intensities)	Fit the first and second harmonic function values to a set of (angle, intensity) pairs.
fit_upper_harmonic(phi, intensities, order)	Fit upper harmonic function to a set of (angle, intensity) pairs.

Classes

Ellipse(image[, geometry, threshold])	Class to fit elliptical isophotes to a galaxy image.
EllipseFitter(sample)	Class to fit ellipses.
EllipseGeometry(x0, y0, sma, eps, pa[, ...])	Container class to store parameters for the geometry of an ellipse.
EllipseSample(image, sma[, x0, y0, astep, ...])	Class to sample image data along an elliptical path.
Isophote(sample, niter, valid, stop_code)	Container class to store the results of single isophote fit.
IsophoteList(iso_list)	Container class that provides the same attributes as the Isophote class, but for a list of isophotes.

Class Inheritance Diagram