Jump to content

SkySurveyBanner.jpg.21855908fce40597655603b6c9af720d.jpg

Registax producing onion rings on Jupiter?


Recommended Posts

I've been processing some Jupiter avis on my netbook and getting nice results until I tried doing the same on my PC. For some reason all the images processed with wavelets in Registax produce onion rings. Totally confused as all the netbook images are fine. Tried version 5 and 5,1 on PC but same rings appear? Below is an example

space-cowboy-albums-jupiter-picture6198-cratlerlet-capture-0002-jup-aug-24.jpg

All Registax settings are the same on PC and Netbook.

Any ideas?

Link to comment
Share on other sites

Still don't know why PC is producing the rings but they can be removed with the de-ringing option on registax. I had used this setting before on other images and it did not make much difference but it's obviously very affective for onion rings.

Link to comment
Share on other sites

Onion rings - gain during capture too low - try to get the max at least half way up the histogram, 3/4 is better.

You will indeed get single ring artifacts if you push wavelet processing too hard (or unsharp mask for that matter).

Link to comment
Share on other sites

  • 2 years later...

Just stumbled across this thread as I too get onion-rings.

I've always set gain to 0, and then adjusted exposure to get the right level as I thought that the "gain" slider for the webcam was equivalent to upping the ISO on a DSLR - higher = more noise. I guess this is incorrect?

Link to comment
Share on other sites

Archived

This topic is now archived and is closed to further replies.

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. By using this site, you agree to our Terms of Use.