> Coming soon, I will probably have sufficient motivation to poke at and
> try to fix things.
>
> Does ufraw have an independent implementation of the X-Trans demosaic
> algorithm as compared to dcraw? If so, is it at least based on the
> dcraw algorithm?
>
> My belief to this point has been that UFRaw was basically a frontend to
> most of the processing happening in dcraw. Is that not accurate?
> Basically, I figured that UFRaw would do the half-scale demosaic do PPM
> or TIFF, cache that, do preview actions against that, and then repeat
> the preview actions against the full-scale demosaic on final output.
>
UFRaw uses a copy of the DCRaw X-Trans demosaic algorithm. It is in the file
dcraw_indi.c. The UFRaw processing path is not identical to DCRaw but some of
the code is at least similar. One of the things I know is missing is to update
the half-size interpolation algorithm used for previews to support the X-Trans
sensor. The latest version of DCRaw has such support.
Any contributions will be much appreciated.
Regards,
Niels Kristian
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