Version 12: Artifacts on edges

[Andik2000]

Hi again - discovered one more problem with the new version.

There are some lighting artifacts on the edges of blended image parts, even when i use the new blending modes or not.

The result is not as good as it was in version 11. And when i try to set the settings that it should behave like the old version, the edges look better but having lighting issues all over the image. It does not exact the same blending as in version 11, wich works also great when have difference in lightning, like when a cloud passes by and darkens some shots a bit.

[Andik2000]

You can also see that v12 having problems to align correct and build halos.

The controlpoints where all automatically set and corrected for the Viewport image in Version 12 and saved. Then opened in version 11 and opened panorama editor.

See the differences.

Best regards,

Andi

[PTGui Support]

To get the same results in PTGui 12 as in PTGui 11, you have to do 2 things:

- disable 'Find Optimum Seams'
- and select Blender: Multiband

To handle those floor tiles you might want to increase the Precision
slider in the Blending side bar. They might be too fine to be seen at
1/64 resolution.

Regarding the lighter band in your 'ptgui_12_without-overlap' image: I
would need the project file and source images to comment on this.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

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[Sven Flock]

Hi Joost,

as I have the same issues even with 1/64 precision (see https://groups.google.com/g/ptgui/c/umU98yV-P8U), maybe it would be a good idea to add higher values like 1/128, 1/256 oder 1/512.

Bye,

Sven

[PTGui Support]

Hi Andi,

Try increasing the 'Precision' slider in the Blending side bar. If that
doesn't help, it's best to disable optimum seam finding and use
multiband blending for this panorama.

Patterns like these are a weak spot of the new blending algorithm. I'm
afraid this cannot be solved completely. That's why multiband blending
remains available in PTGui 12.

I'd nevertheless be interested in having your source images and project
file for investigating this though.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

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[Andik2000]

OK great, i've head 1/8 precision and running into this issue - with 1/4 was better and 1/2 it's gone.

But also tested with disabled "Optimum seams" and Multiband and its also working wis good result.

My fault was to keep "Find  Optimum Seams" active when switching to Multiband and even disabling optimum seams while in overlap mode.

Thanks for the fast help!

Andi

PTGui Support schrieb am Montag, 15. März 2021 um 12:24:58 UTC+1:

[Andik2000]

Hi Sven,

uou have to go the other way - 1/8, 1/4 oder 1/1 makes it more detailed but a lot slower to process.

[PTGui Support]

Hi Sven,

No it works in the other direction: 1/1 is the best quality, but very slow.

I think going coarser than 1/64 would never make sense, and there's
hardly any speed gain.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

On 15/03/2021 12:32, Sven Flock wrote:
> Hi Joost,
>
> as I have the same issues even with 1/64 precision
> (see https://groups.google.com/g/ptgui/c/umU98yV-P8U), maybe it would be
> a good idea to add higher values like 1/128, 1/256 oder 1/512.
> Bye,
> Sven
>
> PTGui Support schrieb am Montag, 15. März 2021 um 12:24:58 UTC+1:
>
> To get the same results in PTGui 12 as in PTGui 11, you have to do 2
> things:
>
> - disable 'Find Optimum Seams'
> - and select Blender: Multiband
>
> To handle those floor tiles you might want to increase the Precision
> slider in the Blending side bar. They might be too fine to be seen at
> 1/64 resolution.
>
> Regarding the lighter band in your 'ptgui_12_without-overlap' image: I
> would need the project file and source images to comment on this.
>
> Kind regards,
>
> Joost Nieuwenhuijse

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

> <https://groups.google.com/d/msgid/ptgui/0684e3d6-039c-424a-9757-382abfd8e18en%40googlegroups.com?utm_medium=email&utm_source=footer
> <https://groups.google.com/d/msgid/ptgui/0684e3d6-039c-424a-9757-382abfd8e18en%40googlegroups.com?utm_medium=email&utm_source=footer>>.

>
>
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[Sven Flock]

Hi Joost,

ok, I thought the over way arround as 1/64 is smaller than 1/1 and I thought you meant the least square error by that. On the other side, I saw better results going with 1/64 than with 1/1.

1/1 precision: a lot of artifacts (bright spots) on the edges on the top of the image:

1/64 precision: less articats:

I am still uploading to OneDrive (my both examples are 62 GByte in total, as I use uncompressed TIFFs from the A7RIV)

Do you have an explanation, why less precision gives better results?

Thanks,

Sven

[Sven Flock]

my upload is complete. I will send you the download link shortly. Do you have any idea, why the visuals get better with lower precision settings?

[PTGui Support]

Hi Sven,

I'm sorry but having to download 62 GB for a support request is a bit
too much.

Could you try converting your source images to jpeg and see if the
problem is still there? It would probably work.