PanoTools NG:
Re: Hugin - vertical panoramas
John Houghton 2007-Jul-29 19:21:32
--- In #removed#, Richard Smallfield
<r.smallfield@...> wrote:
>
> How do I get Hugin to orient the images vertically? It's making a
complete mess of the panorama in the preview.
You need to take control. On the Images tab, you can select an image
and click on the "Anchor this image for position" button to make it
the anchor. You can manually insert angular values for yaw, pitch
and roll for this anchor image to position it. Think of doing a
jigsaw puzzle: pick on a piece and glue it onto the table. Assemble
all the other pieces around the fixed piece and there is only one
arrangement that fits. The glued piece determines where all the
other pieces go. So it is with your panorama. On the optimizer tab,
you can perform several different types of optimization run that
maintain the position of the anchor. This is effected by simply not
checking the y,p,r boxes for the anchor. When they are not checked,
the optimizer will not change the y,p,r values and so the anchor will
not shift up or down or rotate. Hence, the ultimate position of the
entire panorama will be largely determined and you have the means to
control it.
It's still possible for the panorama to become a complete mess if
control points have not been placed well. Examination of the control
point table will reveal which, if any, control points are badly
aligned (large distance errors). These points can be visually
checked and either corrected or deleted and the optimize run
repeated. The optimizer starts with whatever the current image and
lens parameters happen to be, and attempts to jiggle images around
(by adjusting the parameters) in an attempt to improve the alignment
of the control points.
Bear in mind that the stitching is performed on a spherical stitching
surface, and the point where yaw=pitch=0 is the centre of the output
panorama area. The final composite panorama image can shifted around
on the stitching surface in order to centre it in the output area and
level it - i.e. get the verticals properly vertical.
John
--
<*> Wiki: http://wiki.panotools.org/
<*> Nabble (web) http://www.nabble.com/PanoToolsNG-f15658.html
<*> NG Member Map http://www.panomaps.com/ng/
Yahoo! Groups Links
<*> To visit your group on the web, go to:
http://groups.yahoo.com/group/PanoToolsNG/
<*> Your email settings:
Individual Email | Traditional
<*> To change settings online go to:
http://groups.yahoo.com/group/PanoToolsNG/join
(Yahoo! ID required)
<*> To change settings via email:
mailto:#removed#
mailto:#removed#
<*> To unsubscribe from this group, send an email to:
#removed#
<*> Your use of Yahoo! Groups is subject to:
http://docs.yahoo.com/info/terms/