Pixelizations

Pixelization

Groups all of the individual components used to reconstruct a galaxy via a pixelization (an ImageMesh, Mesh and Regularization)

The Pixelization API documentation provides a comprehensive description of how pixelizaiton objects work and their associated API.

It is recommended you read this documentation before using pixelizations.

Pixelization

Pairs a 2D grid of (y,x) coordinates with a 2D mesh, which can be combined with a Regularization scheme in order to reconstruct data via an Inversion.

Image Mesh [ag.image_mesh]

Overlay	Computes an image-mesh by overlaying a uniform grid of (y,x) coordinates over the masked image that the pixelization is fitting.
Hilbert	Computes an image-mesh by computing the Hilbert curve of the adapt data and drawing points from it.
HilbertBalanced	Computes a balanced image-mesh by computing the Hilbert curve of the adapt data and drawing points from it.
KMeans	Computes an image-mesh by running a weighted KMeans clustering algorithm.

Mesh [ag.mesh]

Rectangular	A uniform mesh of rectangular pixels, which without interpolation are paired with a 2D grid of (y,x) coordinates.
Delaunay	An irregular mesh of Delaunay triangle pixels, which using linear barycentric interpolation are paired with a 2D grid of (y,x) coordinates.
Voronoi	An irregular mesh of Voronoi pixels, which using no interpolation are paired with a 2D grid of (y,x) coordinates.
VoronoiNN	An irregular mesh of Voronoi pixels, which using no interpolation are paired with a 2D grid of (y,x) coordinates.

Regularization [ag.reg]

Constant	Regularization which uses the neighbors of the mesh (e.g.
ConstantSplit	Regularization which uses the derivatives at a cross of four points around each pixel centre and a single value to smooth an inversion's solution.
AdaptiveBrightness	Regularization which uses the neighbors of the mesh (e.g.
AdaptiveBrightnessSplit	Regularization which uses the derivatives at a cross of four points around each pixel centre and values adapted to the data being fitted to smooth an inversion's solution.

Settings

SettingsInversion

The settings of an Inversion, customizing how a linear set of equations are solved for.

Mapper

Mapper(mapper_grids, regularization[, ...])

Factory which given input MapperGrids and Regularization objects creates a Mapper.