AstroImageJ, Align and Drizzle
8: Parallel Super-Resolution Plug in, test 2
Now I'm curious, what will happen if I try to do apply a Super Resolution function to images taken through my APO refractor. They are also undersampled.
My routines goes like this:
Here are three images of the same M13 as earlier, APO refractor TS130 (5.25") and Canon 6D camera.
A standard process and the green channel from the demosaiced images. A 4x Zoom has been applied to get equal scale compare to images below.
Here the plugin Parallel Super Resolution setup to 2x. A 2x Zoom has been applied, looks sharper but horrible ringing effects around bright stars.
Here the plugin Parallel Super Resolution setup to 4x. No Zoom has been applied. Even on this one I got rings around brighter stars. Probably my seeing is much worse than 2" and then this Super Resolution wont work, because it's not undersampled relative the seeing. With shorter exposures that freeze the seeing and select the sharp images it should work.
I have to work with the plugin's parameters to see if I can reduce the distortion.
To process this 200 x 200 pixels image the computer needed 7 GB of RAM memory!