Author Topic: Aligning Narrow-band Data  (Read 2727 times)

Offline sreilly

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Aligning Narrow-band Data
« on: 2012 June 01 15:46:57 »
I'm just getting started with NB imaging and while waiting to take sky flats and get the FSQ-106 focused, I took 11 frames each of the Moon using the Ha, SII, and OIII filters. Aligning these was done outside of PI as I'm not aware of a way to align "Planet" images. When I do the RGB combine and assign each filter to the RGB pallet I get an image that the Histogram tool shows the colors with gaps between them like 3 mountains side by side. How do you align the histogram?

This may not turn out to be a good test but it's going to happen so I might as well see how this is done.

Thanks,
Steve
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Offline Geoff

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Re: Aligning Narrow-band Data
« Reply #1 on: 2012 June 01 17:28:31 »
I may have misunderstood your problem, but it seems to me that you can:
1. Select each colour separately by clicking the appropriate box in the histogram window.
2. Move the black point to the left hand base of the mountain for each colour.
3. Move the peak of each mountain using the midpoint slider so that they all line up.
Geoff
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