Removing alpha from PNG image with set alpha node gives pixelated result I am making a node group, and I want to remove the alpha from an image. I added a set alpha node and set the factor to 1, but this gives me a crazy result as you see in the screenshot. I 'm using a normal image with black text and an alpha background, but when I add the set alpha node, the image goes crazy.


I also tried using an alpha over node, but that didn't work either.
Sometimes in PNGs that have alpha channel the image get interpreted in a weird way as RGB only (without the alpha).
Here's an example of how blender interprets such image:



Maybe someone else can explain why... I find that the program in which PNGs are generated can make a difference.

But as a quick solution in this particular case, try connecting the alpha of your Image node to the alpha of the Set Alpha node.