Re: The best color demosaicing algorithm?

> As subject.
> I've found many demosaicing algorithm , but wich is the best and how it
> works?

I think the best ones are hidden secrets, the results from most
consumer digicams depends on them.
I've tried some algorithms from the ~tingchen webside and in the
end my favourite one is following: the green channel is interpolated
in the matter of variable number gradients. That gives good and sharp
edges.
Then, for less color-artefacts, the R-G and B-G values are interpolated
with the weight given by the the difference of the green values (more
difference - less weight).
But that isnt one of the faster methods.

As example you can see here the result beside the theory in ash02.pdf:
http://homepages.compuserve.de/Jdierks2/ipol.jpg

Think the bayer-pattern is a pixel beside the one in the pdf, but that
shouldnt do too much difference.

High frequencies like in the fence are a problem, for that case some
cameras have special bluring filters in front of the sensor to reduce
them, some cameras have only bad optics ;-).