There's a Discord Astrophotography group that does a processing challenge (they probably saw it here!) This month they have a narrow band data set of NGC7000 the North America Nebula. There's an
What's the secret?
Regards
Graeme
If you don't mind ... I'm curious about the use of SNRC with inverted image ... what exactly is that accomplishing and why?OhNo wrote: ↑Wed Jun 23, 2021 10:04 pm ...
In the case of a SHO image I un-check the L channel in LRGB combine, use at SII data in the Red channel, Ha in the Green Channel and Oiii in the Blue channel. Then I have to run SNRC Noise (Green), invert run SNRC Noise (Green), invert again. With this image, adjustments to taste (ie. color saturation, hue....).
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OhNo wrote: ↑Wed Jun 23, 2021 10:04 pm In the case of a SHO image I un-check the L channel in LRGB combine, use at SII data in the Red channel, Ha in the Green Channel and Oiii in the Blue channel. Then I have to run SNRC Noise (Green), invert run SNRC Noise (Green), invert again. With this image, adjustments to taste (ie. color saturation, hue....).
In pixinsight, you can use the "staraliaghnment" tool. The default settings should work,I'm pretty sure there is a channel shift option like registacks to allign channels accurately like when working with planets.Graeme1858 wrote: ↑Thu Jun 24, 2021 5:19 amOhNo wrote: ↑Wed Jun 23, 2021 10:04 pm In the case of a SHO image I un-check the L channel in LRGB combine, use at SII data in the Red channel, Ha in the Green Channel and Oiii in the Blue channel. Then I have to run SNRC Noise (Green), invert run SNRC Noise (Green), invert again. With this image, adjustments to taste (ie. color saturation, hue....).
Thanks for that Brent. I'll give LRGB Combine a go.
But I'm wondering if there's a setting in Pixel Maths that I'm missing that aligns the stars to make the combining more accurate?
I'm not finding PixInsight too overwhelming, more like intriguing and impressive! And I'm enjoying learning the processes I've used so far. Definitely going for it when the trial expires.
Regards
Graeme
I have always assumed the the "StarAlignment" is the registration tool. I also assume that the Pix tools Like StarAlignment are Pixel Math algorithms that are named as a tool.yobbo89 wrote: ↑Thu Jun 24, 2021 10:21 amIn pixinsight, you can use the "staraliaghnment" tool. The default settings should work,I'm pretty sure there is a channel shift option like registacks to allign channels accurately like when working with planets.Graeme1858 wrote: ↑Thu Jun 24, 2021 5:19 amOhNo wrote: ↑Wed Jun 23, 2021 10:04 pm In the case of a SHO image I un-check the L channel in LRGB combine, use at SII data in the Red channel, Ha in the Green Channel and Oiii in the Blue channel. Then I have to run SNRC Noise (Green), invert run SNRC Noise (Green), invert again. With this image, adjustments to taste (ie. color saturation, hue....).
Thanks for that Brent. I'll give LRGB Combine a go.
But I'm wondering if there's a setting in Pixel Maths that I'm missing that aligns the stars to make the combining more accurate?
I'm not finding PixInsight too overwhelming, more like intriguing and impressive! And I'm enjoying learning the processes I've used so far. Definitely going for it when the trial expires.
Regards
Graeme
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