Christopher,
If you have seams where the original image met it might mean you have some
default values for lens distortion and sensor shift. a,b,c,d,e,f,g should all be 0
Jim
On 2015-06-13 11:28 AM, Christopher Bruns wrote:
I want to reproject some aerial equirectangular images taken with a Ricoh
Theta camera. I want to rotate the images to a particular orientation, then
write the image back out as a new equirectangular image of the same size, but
with a different orientation.
Here is what I have tried:
* run Hugin.
* Select "Add images..." and load my (already perfectly stitched)
equirectangular image.
* Select "Equirectangular" as the Lens type.
* Select "Fast Preview Panorama".
* Select the "Move/Drag" tab in the panorama viewer window.
* Drag the image around until a) the horizon is perfectly level, and b) my
desired reference point is horizontally centered in the image.
* Select the "Stitcher" tab in the stitcher window.
* Select Equirectangular projection
* Select 3584x1792 (the original image size) as the canvas size
* Select "Remapped Images"->"No exposure correction, low dynamic range"
* Click "Stitch"
But the resulting image has a dramatic exposure discontinuity seam, at the
location where the original image left/right edges were, i.e. at the seam
between the original horizontal +180/-180 degree boundary. What should I try
next, to avoid this seam?
Is there another program I should use to perform this sort of reprojection
from equirectangular to equirectangular?
--
Jim Watters
http://photocreations.ca
--
A list of frequently asked questions is available at:
http://wiki.panotools.org/Hugin_FAQ
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