The blurred image appears to have a lot of lines that appear that shouldn't be there. I'm wondering if you could blend it out circularly to get a smoother image
Mehvix
@stang085 you could, e.x. a symmetric 2d gaussian filter; this is nice as it corresponds to a gaussian in Fourier space. Box filtering, on the other hand, has sharp corners, causing its Fourier representation to have 'ringing' (see), leading to this type of artifacting.
The blurred image appears to have a lot of lines that appear that shouldn't be there. I'm wondering if you could blend it out circularly to get a smoother image
@stang085 you could, e.x. a symmetric 2d gaussian filter; this is nice as it corresponds to a gaussian in Fourier space. Box filtering, on the other hand, has sharp corners, causing its Fourier representation to have 'ringing' (see), leading to this type of artifacting.