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Old 28-05-2013, 06:57 PM
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White Rabbit
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Stupid question that I probably know the answer to but here goes....

Is there a way of telling the difference between RGB images from a monochrome camera other than file name?

I only just recently got some RGB filters and I've made a right dogs breakfast of keeping track of what colour each set is. Lesson learned though, won't make the same mistake twice.

I'm guessing the answer is no? Or the answer is yes but only for two channels as the weights are different?

Thanks
Sandy
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Old 28-05-2013, 07:14 PM
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Octane (Humayun)
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I think typically blue is the weakest channel.

Didn't your software record the channel in the FITS header?

H
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Old 28-05-2013, 08:13 PM
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Quote:
Originally Posted by Octane View Post

Didn't your software record the channel in the FITS header?

H
No, I use The Sky X pro camera add on and don't have a filter wheel as yet so need to manually enter a prefix into each set I create.

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Sandy
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Old 30-05-2013, 01:16 AM
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naskies (Dave)
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Another approach would be to find a colour image online of the object you've imaged, separate it out into the R, G, and B components, and then compare each of your subs (with a quick screen stretch) to the reference images.
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Old 30-05-2013, 06:58 AM
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troypiggo (Troy)
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1. What image capture software did you use? It may have written the filter names into the FITS files? Or...

2. If the exposure lengths are similar you could get close by just combining each combo in the 3 channels to see which one looks right. 123, 132, 213, 231, 312, 321. Wouldn't take that long.
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