> On 28 May 2019, at 11:26, Torsten Bronger <bron...@physik.rwth-aachen.de>
> wrote:
>
> Hallöchen!
>
> Iain Wood writes:
>
>>> On 28 May 2019, at 01:11, Torsten Bronger <bron...@physik.rwth-aachen.de>
>>> wrote:
>>>
>>> [...]
>>>
>>> I am pretty sure that all that is really missing is the perspective
>>> correction of the image before the projection change. Lensfun can
>>> already do that but it will take some time to bring it into DT.
>>
>> Pretty sure that won't do it either. I have tried using the
>> perspective correction module in combination with lens correction,
>> and again, it helps, but gets nowhere near fisheye-hemi.
>
> I don’t think that ordering of the image transforms is correct here.
> Perspective correction must be before the projection change, and I
> think it is the other way round in DT. Note that the perspective
> correction I talk of (that of Lensfun) is not activated in DT.
>
Yes, true, but it still wouldn't do the fisheye-hemi thing. Whatever order they
are applied in, the combination of perspective and lens correction can't
achieve the transform necessary to do the fisheye-hemi effect. I'm fairly sure
of this. Some sort of free transform is needed as per the photoshop guide in
the original post.
Iain
___________________________________________________________________________
darktable developer mailing list
to unsubscribe send a mail to darktable-dev+unsubscr...@lists.darktable.org
