I try to edit some UV map exported from Blender. Before I want to edit some textures I want to select the regions by alpha.
What I did was some kind of binarization of the image and got rid of the false pixels.
That is working so far I got a black background and a white foreground.
My problem is I did something wrong and now all pixels are fully transparent. So if I deselect the alpha channel I can see the regions I want to select. If I remove the alpha channel everything is white. What I want is a transparent background and only the regions of the UV map visible (alpha value 255).
How can I achieve this?