Combining h-Alpha with RGB

Image processing, astrometry, photometry, etc.
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Rudi
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Combining h-Alpha with RGB

Post by Rudi » 16 Jan 2019, 05:55

What is the recommended way of combining h-alpha data with rgb in AstroArt?
/Rudi

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Rudi
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Re: Combining h-Alpha with RGB

Post by Rudi » 16 Jan 2019, 06:47

Very similar to this question:

viewtopic.php?f=4&t=325
/Rudi

fabdev
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Re: Combining h-Alpha with RGB

Post by fabdev » 16 Jan 2019, 16:29

For pixel math from two images, the Merge window. For pixel math on a single image the Formula Window.

The Average window could be used to tune in real time an intermediate result, or for all math of kind:
Result = R1*C + R2*(1-C)

If you have choosen yet an algorithm then I could give a more precise answer.

fabdev
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Re: Combining h-Alpha with RGB

Post by fabdev » 16 Jan 2019, 16:40

It's also possible to use the h-alpha as Lum in "LRGB combine" then use the Average window to tune the result.

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Rudi
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Re: Combining h-Alpha with RGB

Post by Rudi » 16 Jan 2019, 17:09

Thanks for the answers. I will try that.
/Rudi

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