Thanks !
Gamut clipping was set to "none"

2015-06-03 20:17 GMT+02:00 Roman Lebedev <lebedev...@gmail.com>:

> Hi.
>
> On Wed, Jun 3, 2015 at 9:02 PM, Christophe Vescovi <
> christophe.vesc...@gmail.com> wrote:
>
>> After a long time without upgrading my system, I have gone from DT 1.4.2
>> to DT 1.6.6.
>> I have noticed a problem with the Tone Curve Tool, that create very bad
>> purple color zone even when set completly flat.
>>
>> You can see an example image here :
>> http://chris.stingray.free.fr/tmp/dt_purple.png
>>
> Most likely, it will be gone if you set gamut clipping (in input color
> profile) to “linear Rec2020 RGB”
>
> https://www.darktable.org/usermanual/ch03s04s03.html.php#input_color_profile
>
>
>
>>
>> The raw is from a Sony Nex 6.
>>
>> I have tried the unstable ppa (I am using Ubuntu) and the problem is the
>> same.
>>
>> Since the Tone curve is quite a basic tool, I am very surprised to see
>> this "bug".
>>
>
>> Regards,
>> Chris
>>
> Roman.
>
>
>>
>>
>>
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>
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