Issue with RGB Stars for SHO Image (Please Help)

5 replies47 views
Tommy Mastro avatar

Hi all,

I took RBG star images for my M16 in SHO. However, once I introduce the RGB stars to my SHO image, they turn full magenta. If I invert the image and use SCNR, they all turn yellow. I can't seem to introduce my RGB stars, which have a nice array of colors, into my SHO image without losing the RGB color.

Tony Gondola avatar

How are you extracting and recombining?

Jean-David Gadina avatar

Without knowing what software you are using and how you integrate the star image in the SHO one, I doubt anyone will be able to answer.

Please add details about your workflow.

Tom Boyd avatar

How are you adding the stars back into the image? Are you screening them?

I add my stretched stars back into my stretched nebulosity, using the following pixelmath expression:

~(~stars * ~nebulosity)

andrea tasselli avatar

How do you do that? And what are you using for it? Assuming PI you would need to do this in PixelMath

~((Starless_M16)*(~RGB_Stars))

Craig Towell avatar

Have you set the Stars image to RGB colour space?