Home Forums Imaging Planetary Histograms Implementation?

Grant Privett

I would imagine the impact of the noise varies depending upon how the wavelet transform is implemented in Registax. A large chunk of the image being replaced with a single value would certainly change the frequency spectrum and has reduced the total dynamic range within the image.

The pixels on the planet will still contain readout/sky noise, but that is a lot less obvious when on top of the brighter background provided by the planet.

My first inclination would be to wavelet first and apply any threshold afterward, but I’m probably over cautious.