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Post by mmillwar on Mar 2, 2018 16:02:32 GMT 10
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Post by mmillwar on Mar 2, 2018 16:08:21 GMT 10
... now after talking to Bruce - and for StarTools, I'll try more noise reduction and region of interest in autodev. Attachments:
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Post by geoff on Mar 2, 2018 16:12:04 GMT 10
That's magic Merve. Just shows what talent can produce.
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Post by mmillwar on Mar 3, 2018 15:39:36 GMT 10
... No Geoff, just lots of time staring into the screen and trying different flows.
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Post by mmillwar on Mar 3, 2018 15:49:01 GMT 10
 ... and now after the de-noise in Star Tools and curves in Photoshop |
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Post by Bruce on Mar 3, 2018 17:55:53 GMT 10
What do reckon with the sliced ROI? Geoff and I do this (thanks Geoff).
It seems to knock the noise back. But then again your images are nowhere as noisy as our DSLR images.
I found that doing the color processing in startols before turning off tracking and doing noise reduction gave me better results from my DSLR images.
I didn't have to go into PS or gimp to do any colour adjustments. Startools was ok at bringing out the colour inherently in the data. Anyway it worked last time but who's to say it will work next time. But it seems to work for me. There is slot of slider giggling in startols.
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Post by mmillwar on Mar 4, 2018 7:55:39 GMT 10
Yep, used the ROI on the last image, works well - plus the de-noise module. The colour frames on this image were relatively noisy due to the horsehead being a really "dark subject". Also I imaged 25 frames each for the LRGB & Ha filters over eight nights - again I would have expected a better signal to noise ratio, but I'll put it down to the dark nature of the nebula.
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