08-30-2020, 09:12 PM
(08-25-2020, 05:16 PM)rich2005 Wrote: Just out of interest, what do you mean by "compound colours" ? RGB maybe? Are you using a higher bit depth?
Whoops, that's my mistake (in fact two mistakes): I had also tried to select the background by colour and with fuzzy select, using the 'Composite' se;ect by mode. So that was a word I'd remembered incorrectly, for a different tool!
Foreground select, not my favourite tool
In the tool options do you have Feather edges enabled and is it a big size (default I think is 10) You do not actually see the extent of the feather, it might encompass those stray pixels.
No, this was turned off.
Which engine are you using? The one favoured by the developers now is Matting Levin but it does make for semi-transparent borders. I still prefer Matting Global.
I was using Global, but switched to Levin and seemed to get better results.
If the selection is not much feathered, once inverted, shrink the selection by 3 or 4 pixels, fill the background with white to make it opaque, grow the selection back 3 or 4. Cut the selection.
The problem I had with both filling and cuting was that these areas did not seem to be part of the selection, even though they were beyond the selection line.