Using Fitswork4 we apply a FFT filter twice to remove a rectangular pattern in a Jupiter image due to the artifacts added by the webcam when capturing frames. This kind of filter is extraordinarily difficult to find in another astrophotography software.
FFT ::: Automatic 2D FFT interference filter
This tutorial belongs to a series of small videos for people who want to learn how to do astrophotography and post-processing in a computer, using free software like Fitswork.
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