Tuesday, May 10, 2022

More Astrophotography Learning

Registax is a freeware program that takes video sequences and looks for common data across frames (within reason--they better be all the same object in roughly the same frame position) and stacks the images to remove noise, out of focus bits, then uses wavelets to produce a spectacularly sharp image.

It is supposed to work with individual image collections as well.  I have never had any success doing that.  The trick is to reduce the size of the images, and save them in a framelist so that they are treated like a video sequence.  Then the usual strategy works.  Four not terribly sharp images.

After RegiStax:

After unsharp mask in GIMP:

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