the whitebalance temperature is something we make up of thin air by
comparing the rgb wb coeffs with the ones we get for what we assume to be
daylight balance, which is then normalised to ~5000K or something similar.
i wouldn't read too much into it. if anything, you can compare the rgb
coefficients, but between a jpg and raw i would be surprised if even those
lined up.
-jo
On Sat, Aug 24, 2013 at 5:52 PM, David Vincent-Jones
<[email protected]>wrote:
> Noticed something interesting regarding WB.
> I photographed a test calibration card in both raw and jpg. Light was
> mixed day+bulb.
> The WB was wildly different on both images both before and after using
> spot white balance.
>
> Raw-In = 5662 Raw-Out = 4095
> Jpj-In = 4605 Jpg-Out = 3583
>
> The out valued were both obtained from a white patch on the card.
>
> Both images 'by eye' appeared to be very close in appearance.
>
> darktable 1.3+821~g3ed7216
>
> Something not correct here.
>
> David
>
>
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