Quote:
Originally Posted by ChrisV
Lovely detail all the way to the core on your top pick pic
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Thanks Chris!
Quote:
Originally Posted by gregbradley
What's MMT Lee?
Greg.
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MMT is MultiscaleMedianTransform which is a general purpose wavelet-based tool in PixInsight. Two of the main things it's used for are sharpening and noise reduction.
Using MMT you can basically increase/decrease the "weight" of different scale features in an image, which effectively enables a kind of ringing-free sharpening if you increase certain (typically small) scale structures. It's also good for noise reduction. It's really easy to overdo it with MMT though so you gotta be careful with it.
I use MMT quite a lot, including for minimizing the impact of dust donuts if I don't have flats and even for extracting large scale structures which make for better modelling when removing gradients.