[CREATE] Lens correction database

[Udi Fuchs]

>  > Sounds good. So we can correct TCA before debayering in the future?
>  I'm not sure, I was going to insert all correction filters after
>  de-bayer. The reason is that de-bayering algorithms all rely on fixed
>  positions of the R/G/B pixels, and shifting them, especially with
>  non-integer amounts, will break them completely.

dcraw.c corrects TCA before debayering. Look for the text "Correcting
chromatic aberration...\n" in the function scale_colors().

Udi