i guess you want to take a look at dt_colorspaces_get_darktable_matrix
(src/common/colourspaces.c) where we use these values.
especially near the top where the rows are normalised and the first matrix
is constructed. the rest is a bradford adaptation to D50, not sure you want
that.
-jo
On Mon, Mar 30, 2015 at 2:50 PM, Oliver Markowski <owski.hims...@gmail.com>
wrote:
> haha....you guessed right...i actually shot using a 5D Mark II but the
> values from colormatrices.c are all INT and i need float...can I convert
> those INTs somehow?
>
> thx for your support
> Oli
>
> On Mon, 30 Mar 2015 at 14:04 johannes hanika <hana...@gmail.com> wrote:
>
>> On Mon, Mar 30, 2015 at 1:17 PM, Oliver Markowski <
>> owski.hims...@gmail.com> wrote:
>>
>>> seems you guessed right! hdrmerge says i can input the inverse
>>> of Exif.Image.ColorMatrix2 on the command line but it seems only the Adobe
>>> DNG converter stores that matrix.
>>>
>>> Is there a way to extract Exif.Image.ColorMatrix2 using darktable too?
>>>
>>
>> e.g.:
>> grep "5D Mark II" -rn src/common/colormatrices.c
>>
>>
>>> thx
>>> Oliver
>>>
>>>
>>>>
>>
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