Dust specks, dust donuts, and co-located dead pixels all constitute dark anomalies and will cause halos around them if not taken care of. These type of dark anomalies are taken care of by masking them out so that Wipe will not sample their pixels.
As a result Wipe will, likewise, struggle in such cases.
This guide lets you create starless linear data using StarNet++ and the Heal module.
StarTools' AutoDev module uses image analysis to find the optimum custom curve for the characteristics of the data.
The matrix or channel blend/mapping is selected using the 'Matrix' parameter.
You can convert everything you see to a format you find convenient. Give it a try!