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Re: A supposedly patent-free suggestion/solution to the curious subpixel rendering in Fedora

On Thu, 2009-03-26 at 09:22 -0500, Jud Craft wrote:
> No idea.  Probably something to ask the freetype people, or whoever
> implements the rest of the subpixel filters.
> There is someone who implemented such an idea by considering the red
> and blue subpixels as dependently linked, since together red and blue
> have an approximate luminance as green.  It was called the SubRGB
> algorithm, and there was a page with source, a library, and examples
> -- but I can't find it in google.  I don't believe it was ever used in
> any font-rendering library, but it was suggested as a possible
> non-patent infringing replacement.

Note that a FreeType developer is not so convinced that SubLCD is
completely in the clear:


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