Quote:
Originally Posted by SB
Hi Peter
This raises a good discussion about why in particular the Helix should have natural colours when most other non-broadband objects use SHO, HOS and other colour palates - essentially painting nebulosity with false colour.
Chris.
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Faint levels of SII aside, the Helix outer structures are dominated by Ha and the inner by OIII.
Those two regions are spatially well separated and the emissions sit nicely within the visible spectrum (i.e red and blue/green).
So you can enhance, rather than alter, a RGB or LRGB image with that data
to better show the red and blue/green structures.
One of the best examples of this approach
is here
I'm very much a fan of image enhancement, rather than a "paint by numbers" approach.
But as I said, if you want to re-map the colours of nature there are no laws against it.