Point Spread Function (PSF) modelling software. Using either a simple bivariate Gaussian, PSFex, or Zernike Moments. Can model flux distributions in the image, or create a uniform flux distribution across an apparent magnitude range for a given pixel scale and exposure time. Using the modelled PSF and flux distribution can then inject a given number of fake sources into a supplied fits file. Can create a catalogue, listing x,y,flux(, mag: optional)
Injections can be done in a number of ways:
Random placement
Fixed Grid
Recreate an image with noise
Chosen placement as either: direct injection, no noise injection, or fake noise injection.
Can be used to make synthetic photometric data for mock transient hunting, image subtraction tests and other image manipulation testing.