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Full-frame FWHM - by: TallFurryMan

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I'd like a CCD frame to be able to provide information on the quality of orthogonality or disturbance against the optical axis. Something like what CCDInspector does probably, in terms of collimation, or field graphs showing the evolution of FWHM over the frame. This would be useful for a mobile setup installation where the optical chain is assembled on the go, focus sharpness verification...

I was wondering if this implementation could be done like the astrometry driver currently is. That is, import of suitable libraries and snooping on CCD to calculate and provide a final frame. This might also open the door to setups instantiating chained post-treatments, eventually on separate indi servers.

What do you think?
-Eric

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