I have a problem with Select and Mask in Photoshop CC 2015,2017,2018. I dont even remember if this tool ever work properly for me! Quick selection works just about ok but when I'm trying to make more complicated selection like hair etc. using Select and Mask it's disaster. Selection looks kind of smudgy, no edges are detected
(even with good contrast). Even Refine edge doesn't work like it used to in Photoshop Cs6. Help please !!!
Windows 10 64bit, 16GB RAM, AMD Radeon R9 270X, Wacom tablet Pro
A few things to try:
1. In Select and mask - keep the refine edge brush small and ensure you are only using it on the edges (show edges can help here). I tend to use a 10-20px hard brush with 1% spacing. I leave smart radius off
2. S&M has developed over time - it works better in recent versions than the earlier
3. Never check decontaminate colors. It is much better to use a separate layer clipped to the masked layer
4. If you are getting really bizarre results - go to Preferences > Performance >Graphics Processor >Advanced and uncheck Use Open CL. This has shown a benefit on some GPU drivers (not all)
If all else fails you can still use the old refine edge. With an initial selection made, go to the Select menu hold Shift and click on Select and Mask.
Uncheck Show Original (P) in Select and Mask