Severe Control Point problem

40 views
Skip to first unread message

Stephan Weber

unread,
Sep 19, 2024, 2:33:05 AMSep 19
to PTGui Support
Hi,

since some versions incl. v26 I see issues with panos having much sky or water.
What ever I do I got small areas which are either too dark or too bright. This time I also checked the control points and they are bad too!
Ptgui puts them into the clouds but often there are places which give a much more precise mapping, like trees!! Please check the example png and let me know how I can let Ptgui focus on high-contrast points instead of clouds which are too much impacted by Wind.

So far my workaround is placing manual control points, but this is a huge effort for panos with e.g. 16 pictures or more and/or in multiple rows. Also if you press optimization, you may loose them.
Sometimes also manually dragging pictures helps, but also this is very hard to do with the mouse. 

Bye Stephan
BadCtrlPoints.PNG

RoyReed

unread,
Sep 19, 2024, 1:33:03 PMSep 19
to PTGui Support
If I have fast moving clouds I mask them out before generating control points.

Stephan Weber

unread,
Sep 19, 2024, 1:52:49 PMSep 19
to pt...@googlegroups.com
Hi Roy, that sounds like a good idea. How can I prevent putting CP in certain areas? If I mask out then this area is completely ignored (leading to empty spaces) which would not fit.

--
You received this message because you are subscribed to the Google Groups "PTGui Support" group.
To unsubscribe from this group and stop receiving emails from it, send an email to ptgui+un...@googlegroups.com.
To view this discussion on the web visit https://groups.google.com/d/msgid/ptgui/39de6158-aa7c-460c-976c-17be9e4b5c52n%40googlegroups.com.

John Houghton

unread,
Sep 20, 2024, 2:40:25 AMSep 20
to PTGui Support
On Thursday, September 19, 2024 at 6:52:49 PM UTC+1 Stephan Weber wrote:
How can I prevent putting CP in certain areas? If I mask out then this area is completely ignored (leading to empty spaces) which would not fit.

 Stephan, After creating control points automatically, visit the Source Images tab:  select all images and then right click to select Clear Mask .

John

PTGui Support

unread,
Sep 20, 2024, 2:46:46 AMSep 20
to pt...@googlegroups.com
Hi Stephan,

You can mask out the clouds beforehand. Then generate control points (or
run Align Images).

Afterwards delete the masks by selecting all images in the Source Images
tab, right click, Remove Mask.

The "small areas which are either too dark or too bright" issue sounds
like you may have large differences in brightness between the source
images. To see if this is the case, switch the Panorama Editor to
Unblended mode. If the differences are large, the blender will have a
hard time correcting the differences.

Kind regards,

Joost Nieuwenhuijse
www.ptgui.com

On 19-09-2024 19:52, Stephan Weber wrote:
> Hi Roy, that sounds like a good idea. How can I prevent putting CP in
> certain areas? If I mask out then this area is completely ignored
> (leading to empty spaces) which would not fit.
>
> RoyReed <roy...@reeddesign.co.uk <mailto:roy...@reeddesign.co.uk>>
> <mailto:ptgui+un...@googlegroups.com>.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/ptgui/39de6158-aa7c-460c-976c-17be9e4b5c52n%40googlegroups.com <https://groups.google.com/d/msgid/ptgui/39de6158-aa7c-460c-976c-17be9e4b5c52n%40googlegroups.com?utm_medium=email&utm_source=footer>.
>
> --
> You received this message because you are subscribed to the Google
> Groups "PTGui Support" group.
> To unsubscribe from this group and stop receiving emails from it, send
> an email to ptgui+un...@googlegroups.com
> <mailto:ptgui+un...@googlegroups.com>.
> To view this discussion on the web visit
> https://groups.google.com/d/msgid/ptgui/CAKMwCnRpg-u%2BDYKRnQufQRuFef%3Da0XK01bLXQ50LERkWnYrXZg%40mail.gmail.com <https://groups.google.com/d/msgid/ptgui/CAKMwCnRpg-u%2BDYKRnQufQRuFef%3Da0XK01bLXQ50LERkWnYrXZg%40mail.gmail.com?utm_medium=email&utm_source=footer>.
Reply all
Reply to author
Forward
0 new messages