Hi!
I'm processing my first LRGB image, and have found some different advice that makes me wonder - maybe it does not matter, but if it matters, it would be good to know. Basically, some sources, like Inside Pixinsight , the book, version 1, says to combine RGB into one chrominance image and the use the LRGBcombiation to combine with Lum.
However, LightVortexastronomy (https://www.lightvortexastronomy.co...-combination-and-further-post-processing.html) says to use ChannelCombination, if I read it right.
My question comes from having L with bin 1x1 and RGB with bin 2x2. I understand that StarAlignment adjusts my RGB to fit the Lum, if I align them with a Lum as master. However, the Pixinsight book (ver 1) says nothing about StarAlignment in relation to LRGBcombination.
So: does not LRGBcombination rely on the images being registred to each other?
And: is there a reason to use one of these rather than the other? LRGBcombination rather than ChannelCombination? Or are the the same?
(I hope this makes sense)
Best,
Magnus
I'm processing my first LRGB image, and have found some different advice that makes me wonder - maybe it does not matter, but if it matters, it would be good to know. Basically, some sources, like Inside Pixinsight , the book, version 1, says to combine RGB into one chrominance image and the use the LRGBcombiation to combine with Lum.
However, LightVortexastronomy (https://www.lightvortexastronomy.co...-combination-and-further-post-processing.html) says to use ChannelCombination, if I read it right.
My question comes from having L with bin 1x1 and RGB with bin 2x2. I understand that StarAlignment adjusts my RGB to fit the Lum, if I align them with a Lum as master. However, the Pixinsight book (ver 1) says nothing about StarAlignment in relation to LRGBcombination.
So: does not LRGBcombination rely on the images being registred to each other?
And: is there a reason to use one of these rather than the other? LRGBcombination rather than ChannelCombination? Or are the the same?
(I hope this makes sense)
Best,
Magnus