Image

ska_sdp_func_python.image.cleaners Module

Image cleaner functions for cleaning point spread functions.

`hogbom`(dirty, psf, window, gain, thresh, ...)	Clean the point spread function from a dirty image.
`hogbom_complex`(dirty_q, dirty_u, psf_q, ...)	Clean the point spread function from a dirty Q+iU image.
`msclean`(dirty, psf, window, sensitivity, ...)	Perform multiscale clean.
`msmfsclean`(dirty, psf, window, sensitivity, ...)	Perform image plane multiscale multi frequency clean.
`spheroidal_function`(vnu)	Evaluates the Prolate Spheroidal Wavefunction.

Image deconvolution functions.

`deconvolve_cube`(dirty, psf[, sensitivity, ...])	Clean using a variety of algorithms.
`deconvolve_list`(dirty_list, psf_list[, ...])	Clean using a variety of algorithms.
`fit_psf`(psf)	Fit a two-dimensional Gaussian to a PSF using astropy.modeling.
`restore_list`(model_list[, psf_list, ...])	Restore the model image to the residuals.
`restore_cube`(model[, psf, residual, clean_beam])	Restore the model image to the residuals.

Functions that perform gather/scatter operations on Images.

`image_gather_channels`(image_list)	Gather a list of subimages back into an image.
`image_gather_facets`(image_list, im[, ...])	Gather a list of subimages back into an image using the image_raster_iterator.
`image_scatter_channels`(im[, subimages])	Scatter an Image into a list of subimages using the channels.
`image_scatter_facets`(im[, facets, overlap, ...])	Scatter an image into a list of subimages using the image_raster_iterator.

Functions that define and manipulate images. Images are just data and a World Coordinate System.

`image_channel_iter`(im[, subimages])	Create a image_channel_iter generator, returning images.
`image_raster_iter`(im[, facets, overlap, ...])	Create an image_raster_iter generator, returning a list of subimages, optionally with overlaps.

Image operations visible to the Execution Framework as Components.

`convert_clean_beam_to_degrees`(im, beam_pixels)	Convert clean beam in pixels to deg, deg, deg.
`convert_clean_beam_to_pixels`(model, clean_beam)	Convert clean beam to pixels.
`convert_polimage_to_stokes`(im[, complex_image])	Convert a polarisation image to stokes IQUV (complex).
`convert_stokes_to_polimage`(im, ...)	Convert a stokes image in IQUV to polarisation_frame.

Image functions using taylor terms in frequency.

`calculate_image_frequency_moments`(im[, ...])	Calculate frequency weighted moments of an image cube.
`calculate_image_from_frequency_taylor_terms`(im, ...)	Calculate channel image from Taylor term expansion in frequency.
`calculate_image_list_frequency_moments`(im_list)	Calculate frequency weighted moments of an image list.
`calculate_image_list_from_frequency_taylor_terms`(...)	Calculate image list from frequency weighted moments.
`calculate_frequency_taylor_terms_from_image_list`(im_list)	Calculate frequency taylor terms.