The powerful 'Auto' function quickly and autonomously isolates features of interest such as stars, noise, hot or dead pixels, etc.
For example, isolating just the stars in an image is a necessity for obtaining any useful results from the 'Decon' and 'Magic' module.
The type of features to be isolated are controlled by the 'Selection Mode' parameter
Some of the selection algorithms are controlled by additional parameters;
Finally, the 'Source' parameter selects the source data the Auto mask generator should use. Thanks to StarTools' Tracking functionality which gives every module the capability to go "back in time", the Auto mask generator can use either the original 'Linear' data (perfect for getting at the brightest star cores) or the data as you see it right now.
You can convert everything you see to a format you find convenient. Give it a try!