List of profiling techniques, from the most desirable to the least desirable from the standpoint of accuracy:

1. Select a 128x128+ uniform feature-less patch in a frame chosen for profiling and use Auto Profile to build a profile;
   
   
   
   
2. Use method (1) with a smaller (32x32+) area in a frame from your current video clip;
   
   
   
   
3. Use method (1) with a frame from another video clip produced by the same video capturing device working in the same or similar mode; then additionally fine-tune the resulting profile by analysing a frame from your current video clip: use Auto Fine-Tune once or use manual Fine-Tune on several featureless areas;
   
   
   
   
4. Obtain a ready-made profile made from a similar video clip produced by another capturing device of the same model; then additionally fine-tune the resulting profile by analysing a frame from your current video clip: use Auto Fine-Tune once or use manual Fine-Tune on several featureless areas.