Terrible amount of artifacts after stitching

[Christian Gamio]

I´m getting an terrible amount of artifacts after stitching while using PTGui on "2 store" panoramas - specially on flat areas. Considering the price of PT Gui it´s unacceptable!

And this is not even the worst example - but it happens like this to often and it´s annoying.

[PTGui Support]

Hi Christian,

Judging from your image, this may happen if the images are pre-processed
before feeding them to PTGui and the brightness of neighboring images is
inconsistent.

You can see if that's the case, by switching the Panorama Editor to
'unblended' mode. Ideally you would still see a reasonably good
panorama, with not too much variation in brightness between neighboring
images. The blender will smoothen out those minor differences.

If you preprocessed your images using tone mapping or applied strong
shadow/highlight correction, those images may have very inconsistent
brightness. The blender will have a tough job correcting this, and some
artifacts may remain.

The recommended approach, especially with PTGui Pro 13, is to stitch
your DNG files directly in PTGui. Then do any adjustments after stitching.

Alternatively, disabling 'optimum seams' may help sometimes. This causes
the seams to move further away from each other, making the blending
artifacts less noticeable.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

> Stitching errors.JPG
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[Christian Gamio]

Hi Joost, thanks for the kind replay. My workflow starts with creating HDRs out of the Tiffs out of the DNGs, but no change to exposure, white balance etc. 

The thing is, other pano software like panorama studio is not having this problem (they have others :-P )

I´ll try your sugestions

Thanks a lot

Christian

[Erik Krause]

Am 07.11.25 um 14:47 schrieb 'Christian Gamio' via PTGui Support:

> The thing is, other pano software like panorama studio is not having this
> problem (they have others :-P )

You can try to use the Multiband Blender and switch off Optimum Seams to
more or less mimic the blending of Panorama Studio. But this might give
you ghosting in some places, if the images don't overlap perfectly.

--
Erik Krause
http://www.erik-krause.de

[PTGui Support]

I guess the other panorama software is using Multiband blending? This
is an option in PTGui as well.

If I understand correctly, you're tone mapping the images prior to
stitching. This actually makes extreme adjustments to the exposure
levels. Have you tried switching the panorama editor to Unblended mode?
This might give some insight.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

> www.ptgui.com <http://www.ptgui.com>

>
> On 11/7/25 10:45, 'Christian Gamio' via PTGui Support wrote:
> > I´m getting an terrible amount of artifacts after stitching while
> using
> > PTGui on "2 store" panoramas - specially on flat areas.
> Considering the
> > price of PT Gui it´s unacceptable!
> >
> > And this is not even the worst example - but it happens like this to
> > often and it´s annoying.
> >
> > Stitching errors.JPG
> >
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> > Groups "PTGui Support" group.
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> send
> > an email to ptgui+un...@googlegroups.com
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[Christian Gamio]

Good morning & thanks for the effort supporting - Here my latest example:

 now the same pano with panorama studio:

Clean and flawless panorama - So it seems that the input file can´t be the problem.

[PTGui Support]

Hi Christian,

Could you try disabling this checkbox:
Panorama Editor - Blending - Find Optimum Seams

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

On 11/10/25 09:05, 'Christian Gamio' via PTGui Support wrote:
> Good morning & thanks for the effort supporting - Here my latest example:
>

> PTGui 1.png
>  now the same pano with panorama studio:
>

> PTGui_PS.png
>
> Clean and flawless panorama - So it seems that the input file can´t be
> the problem.
>

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[Erik Krause]

Am 10.11.25 um 09:05 schrieb 'Christian Gamio' via PTGui Support:

In the PTGui version, the sun is less overexposed. This indicates, that
the middle images are darker. PS likely corrects the brightness without
asking, PTGui let's you choose what to do (Advanced Mode): Go to
Exposure/HDR tab, click Settings (under "Automatic exposure and color
adjustment"), Choose "Optimize Brightness: enable" and press Ok and Ok
for optimization (or "Optimize now").

Does that help?

[Christian Gamio]

Hey Eirk, in my honest opinion the brightness is not the issue here, check how many patches are in the PTGui version all around the picture, even

in the rigth corner - I´ve marked the ones I´ve discovered

[Erik Krause]

Am 10.11.25 um 13:35 schrieb 'Christian Gamio' via PTGui Support:

> in my honest opinion the brightness is not the issue here

Did you try the suggestions? View it in unblended mode in Pano Editor?
Enable Brightness optimization? Disable Optimum Seams?

If you don't succeed, can you provide the source images for download?
Just the ones you feed to PTGui. Without them, anything is wild guessing.

[Christian Gamio]

Thanks Erik for your answer - I´ve deleted the rearding sinlge files a while ago (but if I get another pano with big problems I´ll upload them)

Right now what I´m doing is masking every single pic in the pano in the corners & I´ve rised the degree for the optimum Seams to 1/1 and 

the results are better now - But it´s way more effort than a simple pano stitch.

Regards

Christian

[Erik Krause]

Am 11.11.25 um 10:49 schrieb 'Christian Gamio' via PTGui Support:

> Right now what I´m doing is masking every single pic in the pano in the
> corners & I´ve rised the degree for the optimum Seams to 1/1 and
> the results are better now - But it´s way more effort than a simple pano
> stitch.

You know that you can copy and paste masks, save and load them (Source
Images tab) or store them in a template (Project Settings tab)?

[Christian Gamio]

Yes, I know I can copy & paste them and/or save them :-)

[PTGui Support]

Hi Christian,

Feel free to post a set of images and I'll take a look. This would allow
me to better help you than I could just from seeing the stitched panorama.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

> http://www.erik-krause.de <http://www.erik-krause.de>

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