[Ha]LRGB

Requests for new features and wish-list items.
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ChrisLX200
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Joined: Tue Apr 22, 2014 10:25 am
Location: Macclesfield, UK
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[Ha]LRGB

Post by ChrisLX200 »

I could _really_ use a simple (but controlable!) way of adding H-alpha channel to an LRGB image. Right now I'm having to use PI for this and it's anything but intuitive.

ChrisH
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Amaranthus
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Joined: Wed Apr 30, 2014 4:42 pm
Location: Judbury, Tasmania
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Re: [Ha]LRGB

Post by Amaranthus »

Chris, you could make a synthetic luminance using the Ha blended with L (and, indeed, the R, G and B if captured at 1x1 binning, weighted by exposure). And/or you can blend it with the R channel prior to loading up in the LRGB module. Do this by loading the Ha channel, then opening Layers, then opening R and doing a 50% blend (or whatever weight is appropriate).

A full tutorial by Ivo is here: http://forum.startools.org/viewtopic.php?f=7&t=236 and it's excellent.

I did an [Ha]LRGB for M20 recently using StarTools: http://www.astrobin.com/134243/
Long-time visual observer, now learning the AP dark arts...
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