StarTools stores the masks you used in your workflow in the StarTools.log file itself. This StarTools.log file is located in the same folder as the executables. The masks are encoded as BASE64 PNG images. To convert the BASE64 text into loadable PNG images, you can use any online (or offline) BASE64 converter tool.
The part to copy and paste, typically starts with;
One online tool for BASE64 is Motobit Software's BASE64 encoder/decoder.
To use it to convert StarTools masks back into importable PNG files;
This should result in a download of the mask as a PNG file which can be imported into the StarTools mask editor, as welll as other applications.
Exclusive to the main screen, the buttons that activate the different modules, reside on the left hand side of the main screen.
Whatever detail lies outside the RoI, is simply forced to conform to the stretch that was designed for the RoI.
Open an image stack ("dataset"), fresh from a stacker.
The Stereo 3D module is able to export your images for use with Facebook's 3D photo feature.
You can convert everything you see to a format you find convenient. Give it a try!