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Dear forum members, I am having a problem with a background placement, after selecting and refining. When I have placed the background, I see hello as an edge around the building. Is this a bug in 1.7.3? Thank you in advance for the answer. This is translated from Dutch to English by Google Translate

I have been looking at ways to effectively mask things like trees and then adjust the background so you can increase contrast, gamma etc in the sky without affecting the foreground. I have tried Remask from Topaz which is pretty good but thought I would try Affinity which is my core image editor. MY METHOD Using the selection brush I make a loose selection of the sky around the trees I then invert the selection I then hit Refine Using the Matt brushes and foreground and background modes I then tidy up the selection so only the tree is selected Using a black background in the Refine tool the trees look pretty good (see attached) In fact a better result than I can achieve using Topaz Remask and faster. MY PROBLEM So now I have the really good selection I need to transfer that into my final image so I... Hit apply Now I have a selection of just the trees To test how good this is and recreate the result of using the black background in the Refine tool I convert the selection to a mask. In my mind this shoud duplicate the effect of the selection including transparency Then I load a pure black pixel layer beneath the masked layer The result is attached As you can see the selection as a mask appears quite a bit different from the refine preview window with lots of bleed coming through. Am I doing something wrong? Am I wrong to expect the mask to replicate the preview window in Refine? It seems if the preview can do it why can't I replicate in the final image? I really enjoyed selecting a tricky subject like this in Affinity and would really like to get this right. What am I doing wrong? or Is there a deficiency in Affinity? Many thanks Andrew Busst

Please check the images attached below. I've got a jacket that I have to cut out of the white background. So I do a quick magic wand selection, create a mask, invert it and then I right click on it and do Refine Selection. My question is why do I get those strange edge artifacts when I use the "Feather" parameter and "Black Matte" as a preview method? This makes it very hard to judge the real result of the Refine Selection settings. I can properly judge the result only when I hit Apply. "White matte" and "Transparent" modes also shows the nasty splotchy edge artifacts. It seems that only "Black and white" and "Overlay" shows the edges properly. Am I doing something wrong?