Gnuastro
- astarithmetic(1) arithmetic operations on images and numbers
- astbuildprog(1) compile, link with Gnuastro library and its dependencies, and run a C program
- astconvertt(1) convert known data types to each other
- astconvolve(1) convolve an image with a given kernel
- astcosmiccal(1) estimate cosmological values
- astcrop(1) crop regions of a dataset
- astfits(1) view and manipulate FITS headers
- astmatch(1) match catalogs by 1D or 2D positions
- astmkcatalog(1) Make a catalog from labeled input images
- astmknoise(1) add noise to an image
- astmkprof(1) make standard 2D profiles on an image
- astnoisechisel(1) detect signal in a noisy image
- astquery(1) query remote data servers and download
- astscript-ds9-region(1) Create an SAO DS9 region file from a table
- astscript-fits-view(1) View FITS images in DS9 and tables in TOPCAT based on contents
- astscript-psf-scale-factor(1) Find factor to scale PSF to a given star in an image
- astscript-psf-select-stars(1) Select good stars for constructing the PSF
- astscript-psf-stamp(1) Make normalized stamp of star with background objects masked
- astscript-psf-subtract(1) Subtract a given PSF model from the image of star
- astscript-psf-unite(1) Unite the outer and inner regions of the PSF into one
- astscript-radial-profile(1) Create a radial profile of an object in an image
- astscript-sort-by-night(1) Sort input FITS files by night
- astsegment(1) segmentation based on signal structure
- aststatistics(1) calculate statistics of a dataset
- asttable(1) read and write ASCII and FITS tables
- astwarp(1) warp (transform) input dataset