Author Topic: Selection white reference in Color Calibration: multiple galaxies.  (Read 124 times)

Offline ballyhoo

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should you create a light background reference including one, or all of the galaxies? And how do you be sure you are selecting the correct dark background?  Is this just a qualitative choice?  Thank you

Offline Niall Saunders

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When you select the dark background, use the same (multiple) area(s) as you selected for Background Neutralisation. No need to do twice the work.

And tou really only have to select the biggest and brightest galaxy as the target for your Colour Correction.

Don't try and 'double-guess' what PI might be doing - just select multiple ares (as needed) at the core of your galaxy, PI knows what 'is not data'.

Use the ability of PI to aggregate multiple preview into a simgle preview or image file.

Hope this helps.

Cheers,
Niall Saunders
Clinterty Observatories
Aberdeen, UK

Altair Astro GSO 10" f/8 Ritchey Chr├ętien CF OTA on EQ8 mount with homebrew 3D Balance and Pier
Moonfish ED80 APO & Celestron Omni XLT 120
QHY10 CCD & QHY5L-II Colour
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