I’m working with Voyager images of Callisto, and I’ve been struggling through the alignment process. I’ve been trying to get perfect alignment with the basemap, but I’m ending up with all these small sections that veer off by a few pixels. I’ve haven’t had this happen with Galileo or Cassini images. I’ve been through a lot experimentation with qnet/jigsaw and automated control networks without any improvements.
Here’s visual of the situation: http://phillips.seti.org/mvalenti/Callisto_mosaic/failures/c2060649.gif
You can see the type of warping I’m taking about toward the lower right hand corner.
So, my next course of action was to use coreg to try to push these warped areas back into place. Under the right circumstances, this command has been able to make magic happen with imperfect alignments. After many tries, I’m finding that it’s just not cutting it with this group of images.
I was wondering if there is a command out there that does same sort of thing as coreg, but I can feed it a separate hand edited control network grid and it will warp the image to fit it; Or if there’s a way to hack the coreg command to get it to do this. If so, it will save me from this situation. I’ve been hammering away at this for months.