How sum an H-alpa session and RGB

Image processing, astrometry, photometry, etc.
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Astrobob0
Posts: 3
Joined: 29 Aug 2021, 21:56

How sum an H-alpa session and RGB

Post by Astrobob0 » 17 Jul 2022, 09:10

Good morning , I have two different session of NGC6888 one with color cmos camera and otehr with te same comso buto with filter H-alpa 6nm
I try wit mat function (fusion + sum) but the image appera complety saturated .
anyone know the process , with photosho and layers is a little bit easy but i like learn to use aa8.

Best Regards
astroB

fabdev
Posts: 461
Joined: 03 Dec 2018, 21:43

Re: How sum an H-alpa session and RGB

Post by fabdev » 18 Jul 2022, 20:11

Good morning, if the H-Alpha is to be used as luminance, then the command is: LRGB Combine.
If not, probably the H-Alpha should be normalized to the color image (Arithmetic / Normalize / Scale) before proceeding with other commands.

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