Transparent JPEG images

Some retards say you cant do that and that JPEG sprites look awful.

But how about storing alpha channel inside of unused HSV ranges?

I never understood the relevance for jp2k, right now there is no publicly known claim. And for the rest of the story:

By that measure you couldn't use any format which isn't widely used, also I've seen commercial software using it. You just need the balls to do it.

The same story was LCD optimized font rendering, once enough people stand up patent trolls can suck it.