Best way to clean up stray pixels on mask background

[Ken Hjulstrom]

I've removed the background from an image by using a mask, and I've replaced the background with a solid color layer.  When I examined the final result, I saw some disturbances in the solid background color which I figured was due to an incomplete paint of black on the mask layer, so I disconnected the mask layer from the image layer, turned off visibility of the image layer, and added a bright blue layer beneath the mask to more easily highlights any missing spots on the mask.  This generally worked well, and things are 99% cleaned up, but I wanted to make sure that ALL of the background area of the mask was completely painted black, and I'm not sure how to do this.  The best I've been able to do so far was to select the mask layer and use the Select | Select Sample Color option.  This is showing me that there are still small areas outside the white area of the mask that still aren't fully black, and at the moment, I'm cleaning these up by alternating between using the Select Sample Color to show me where the offending areas are on the mask and canceling out of Select Sample Color to repaint those areas with black.  This is a bit tedious, as the selection "ants" go away when it's time to paint, forcing me to guess where the painting needs to be done.  Is there a more efficient way to accomplish this?

Thanks,

Ken

 

[Wosven]

Hi @Ken Hjulstrom,

If the mask is clipped to the image: you can try right-clicking on your mask, and "adjust the mask" (same options as "refine selection").

If the mask is above the image: you can rasterize the mask (this function seem bugged in the beta, and do nothing, so: add a group, and rasterize, see how below), to get a black and white layer you can modify with Levels/Curves/Luminosity&Contrats adjustements before using the option: Rasterize to Mask.

[Ken Hjulstrom]

Hi Wosven,

Thanks for the info.  When I have the mask set as subordinate to the layer it's masking, I don't see an option called "adjust the mask" or "refine selection" when I right-click on the mask layer.  Regarding when the mask layer is above the image, it appears that you're saying that I can rasterize the mask to a pixel layer so I can edit it directly, as it's no longer a mask, and then when I'm done, I can Rasterize to Mask and move it to be subordinate to the layer it's masking?  I'll try that next time; for my current situation, I managed to clean it up using the "Select Sample Color" technique I had been using.

Thanks again,

Ken

 

[Wosven]

I've got it in the beta: