Black or White to Alpha by Koh

Curious that this well done filter and that has got already a HU does not have any comments yet.

Although is not perfect, you can get some good results, and even I have seen that can be used for more artistic results, and not only for removing white or black, it can be used also to makes cool masks for other things, or convert artistic drawings into something different. Try to use and experiment with the available presets and see what results you can have and what happens when applying them.

I have one possible suggestion

Here is a visual example



Remove only Background - One more complex and maybe difficult to make is that the removing is ONLY applied to the external part of the shape, I mean in the case of the FF lifesaver, that it could remove all the white or black from all the outer part of the lifesaver but not remove any part of the inner part, because maybe the image contains a plain white background, but also there is white inside the main image, so this filter removes everything white, and not only the white background outside of the main image.