The Heal module was created to provide a means of substituting unwanted pixels in an neutral way.
Cases in which healing pixels may be desirable may include the removal of stars, hot pixels, dead pixels, satellite trails and even dust donuts.
The Heal module incorporates an algorithm that is content aware and is able to synthesise extremely plausible substitution pixels for even the large areas. The algorithm is very similar to that found in the expensive photo editing packages, however it has been specifically optimised for astrophotography purposes.
