On 18 July 2018 06:36:47 BST, clepsydrae wrote:
>Hi -- I have 30 pics that form a stack of star pictures with which I
>intend to do a median image average with gmic.
>but it's still not close enough to do the median image calculation.
>The first and last image (representing the largest spatial shift from the
>stars rotating in the sky) are still off by 5 or 10 pixels.
I would first check that you are optimising enough lens parameters, at least
barrel distortion and angle of view (in addition to positions).
Then I would use the Control Points table to examine all the control points
with the highest error - if they look like they should be ok, then manually add
more control points to nearby features and re-optimise, otherwise delete the
points (and re-optimise).
If you still have trouble, upload the photos somewhere and post the link here.
--
Bruno
--
A list of frequently asked questions is available at:
http://wiki.panotools.org/Hugin_FAQ
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