How to shoot and edit real estate photos

You don’t need raster brush for that, and I don’t know any brush with edge detection built-in. Use a regular polygon vector mask and increase the mask feathering by a lot.

You know you can manually discard bad edges from the horizontal/vertical lines detection just by painting on UI preview with right click ?

Sounds like a bad alpha merging but needs investigation. You know you can send me samples.

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