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.
Pairs a 2D grid of (y,x) coordinates with a 2D mesh, which can be combined with a |
Image Mesh [ag.image_mesh]#
Computes an image-mesh by overlaying a uniform grid of (y,x) coordinates over the masked image that the pixelization is fitting. |
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Computes an image-mesh by computing the Hilbert curve of the adapt data and drawing points from it. |
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Computes an image-mesh by running a weighted KMeans clustering algorithm. |
Mesh [ag.mesh]#
A uniform rectangular mesh of pixels used to reconstruct a source on a regular grid. |
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A Delaunay mesh composed of irregular triangular pixels used to reconstruct a source on an unstructured grid. |
Regularization [ag.reg]#
Regularization which uses the neighbors of the mesh (e.g. shared Delaunay vertexes) and a single value to smooth an inversion's solution. |
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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. |
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Regularization which uses the neighbors of the mesh (e.g. shared Delaunay vertexes) and values adaptred to the data being fitted to smooth an inversion's solution. |
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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#
The settings of an Inversion, customizing how a linear set of equations are solved for. |
Mapper#
To understand a Mapper one must be familiar Mesh objects and the mesh and pixelization packages, where the four grids are explained (image_plane_data_grid, source_plane_data_grid, image_plane_mesh_grid,`source_plane_mesh_grid`) |