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31 July 2020 - Comet Registration video tutorial using APP 1.083-beta1 released.

30 July 2020 - APP 1.083-beta1 has been released introducing Comet processing! This 1st beta has comet registration. The stable release will also include special comet integration modes.

9 July 2020 - New and updated video tutorial using APP 1.081: Complete LRGB Tutorial of NGC292, The Small Magellanic Cloud by Christian Sasse ( and Mabula Haverkamp

2019 September: Astro Pixel Processor and celebrate a new Partnership!

Splitter Channel workflow  


Neutron Star Customer
Joined: 3 years ago
Posts: 173
July 18, 2017 09:25  

Hi Mabula.

How does integration work with splitted channel calibration frames? What is the difference between sigma clipping, winsorized sigma clipping and linear clipping?

Quasar Admin
Joined: 3 years ago
Posts: 2456
July 18, 2017 11:48  

Hi Minusman,

The splitted channel option in calibration is only needed if you want to combine OSC/DSLR camera data with monochrome channel data. Then you would need to split your RGB data. And process the splitted channels together with the monochome channels from the monochrome camera separately. So integrate all red data, then all green, then blue, then register the R,G,B integrations and then import them into the RGB Combine tool to create a final RGB image (or LRGB for instance).

Regarding the outlier rejection filters, check this:

Let me know if this answers your questions.

Kind regards,