Grendor

Well simply they're sprites in the style of Little Fighter such as the ones below.

Hello fine folks. I've been looking for a way to have a blended edge around some of my images. For example, I have a sprite of a character, but the background is all black and his pixels have a faded, blended edge around him. What I want to do is be able to paste these sprites into a comic of mine and hopefully have them maintain the blended edge while having an otherwise transparent background. So in essence, I want the edges to have an outline of black with no stray or abstract pixels. How would I go about doing this?