Author Topic: Mixing two images..  (Read 803 times)

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JohnP

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Mixing two images..
« on: Dec 04, 2015, 22:27:46 »
Not processed anything for ages.. anyway thought I'd like to see the result of combining the colour data from Mark's (thanks Mark for letting me use this) recent widefield cave image seen here:

http://forum.orpington-astronomy.org.uk/index.php?topic=10566.0

With Ha data I took of the cave over two years ago seen here:

http://forum.orpington-astronomy.org.uk/index.php?topic=9355.msg66679#msg66679

obviously images totally different sizes, resolutions & orientation so many thanks to Robert for aligning the cave area of Marks image with mine (I haven't got the software to easily do this). Mark's image was 5.18 arcsec/pixel & mine was 2.2

Anyway layered my Ha on top of Mark's RGB & set blend mode to luminosity. Result as follows:




John

MarkS

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Re: Mixing two images..
« Reply #1 on: Dec 04, 2015, 22:36:06 »
That's actually come out rather well!

Mark

JohnP

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Re: Mixing two images..
« Reply #2 on: Dec 04, 2015, 22:45:47 »
well im sure in your expert hands it would have come out a lot better - all processing done with jpeg's. I also heavily blurred your RGB data (hence no star spikes)..

Carole

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Re: Mixing two images..
« Reply #3 on: Dec 05, 2015, 12:32:47 »
Beautiful and smooth John, a great combined effort.

Carole

JohnP

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Re: Mixing two images..
« Reply #4 on: Dec 05, 2015, 12:53:53 »
Thanks... thing that interests me is that you can combine pretty much any images nowadays as long as they cover similar areas of sky.. Makes combining high resolution Ha data with lower resolution RGB (from say a one shot DSLR) definitely doable..

The Thing

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Re: Mixing two images..
« Reply #5 on: Dec 05, 2015, 15:47:01 »
That really is a good looking image John.
¯\_(ツ)_/¯ (Gallic shrug :))
My Website AstroManche

JohnP

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Re: Mixing two images..
« Reply #6 on: Dec 06, 2015, 17:00:22 »
Cheers Dunc.. John