The above image is part of a set of standard test images as found here: True Color Kodak Images
I ran the GMIC bayer filter over it and then demosaiced it.
The algorithm above is closer to mine 2a in that thread. It has the addition of adding the amount colour variation to the horizontal or vertical weighting.
The other thread I mentioned was the following.
I am still playing around with various demosaicing methods and I intend to release a filter based on ‘mine1’, as mentioned above, at some stage.
I don’t have the skills to port the anything to anywhere I’m afraid. And I assume it would take a lot of work for someone else because a GMIC filter script is vastly different to lower level programming languages that will be used for RT. But if a developer’s interest is piqued it might happen. I would support any effort if they did.