[Ha]LRGB

Requests for new features and wish-list items.

[Ha]LRGB

Postby ChrisLX200 » Sun Mar 08, 2015 10:35 am

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.

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Re: [Ha]LRGB

Postby Amaranthus » Tue Mar 10, 2015 4:14 am

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: 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/
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