Thank you, Bruno.

The workflow you suggested makes an enormous difference getting the images 
to appear in the correct relation to each other in the preview modes, and I 
can replicate your optimization values if I use that workflow on my 
original PTO.  Unfortunately, your PTO (fixed) results in a great stitch, 
while mine inexplicably results in only a narrow horizontal band of the 
mosaic along its 'equator' appearing correctly exposed in the preview.  The 
rest of the images are very dim.  This band is also the only bit that gets 
stitched into the final image.  I've used the Move/Drag tab's 'Fit' and 
'Center' buttons, along with the Stitcher tab buttons to calculate 'field 
of view' and 'optimal size', and also tried adjusting the preview sliders, 
but nothing changes this band.  I've attached my PTO again, but it looks 
almost identical to yours.  Please advise if any other information or 
screen shots might be useful.

Despite the persistent problems I really appreciate the help with the 
workflow.  Hopefully, others read this thread and have success with their 
own projects.


On Monday, August 10, 2020 at 1:04:11 AM UTC-7, Bruno Postle wrote:
>
> On Sun 09-Aug-2020 at 17:29 -0700, tbransco wrote: 
> > Unfortunately, the urge to start over took hold and I again built 
> > up this mosaic by stages.  My workflow gets me to the same stage 
> > as previously; but now, having cleaned up the unrelated cp's, I 
> > can still only get to a 9-image mosaic.  Adding image 10 and 11 
> > again results in a scrambled result in the Fast Pano preview.  The 
> > translation parameters after optimization look ok, so perhaps 
> > there really is a bug?  One workflow step I did change, based on 
> > further reading in the Hugin FAQ, was the mode of the horizontal 
> > line I've added to each image.  That mode is now set to 
> > 'horizontal line' rather than 'Line #', as it seems better suited 
> > to the purpose at hand. 
>
> Basically the optimiser gets stuck on a local minima with this set 
> of images - the mosaic optimisation is nowhere near as stable as the 
> 'normal' panorama optimisation (it is the same code, just the more 
> variables you try to optimise at once, the more likely it is to 
> come to a conclusion you don't like). 
>
> So I reset all the XYZ position parameters, then optimised just X 
> for all images (except the anchor), added Y to the optimisation, 
> then Z. This seemed to be ok, so I added in rotation parameters 
> using the 'Position and Translation (r,p,y,x,y,z)' preset. 
>
> -- 
> Bruno 
>

-- 
A list of frequently asked questions is available at: 
http://wiki.panotools.org/Hugin_FAQ
--- 
You received this message because you are subscribed to the Google Groups 
"hugin and other free panoramic software" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To view this discussion on the web visit 
https://groups.google.com/d/msgid/hugin-ptx/27ce2799-9b4c-4b11-869f-1f7a535bb0abo%40googlegroups.com.

Attachment: _8041934 mosaic 11x.pto
Description: Binary data

Reply via email to