Quote:
Originally Posted by strongmanmike
Actually Tom, can you describe how you add the RGB data to just the stars without affecting the rest of the image?
Mike
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After assembling your S-H-O and R-G-B images, align then with your favorite program (use Registar for this because I want them to be exact).
In PS open the SHO and with the Select>color range tool select the magenta halos which surround the stars (this is inherent to the SHO combine). Select>Modify>expand by one pixel. Feather by 1 pixel. In Image>adjustments>color balance move the slider away from magenta towards green until most the the magenta is gone. Deselect.
Now use the color range tool to select just the stars. Modify>expand by 1-2 pixels. Feather by 1 pixel. Go to Select>Save selection and name it something like "stars".
Open aligned RGB image. Select>Load selection "stars". Now your exact star selection is mapped into your RGB image. Cntrl-C to copy the selection.
Go back to your SHO image and Cntrl-V to paste the RGB stars exactly onto the SHO stars! Here's where you have to play with it a bit. Change the blend mode from normal to lighten or color. Sometimes one looks better than the other. Flatten.
Now your RGB stars have replaced your funny looking SHO stars. Let me know if this is not clear
Cheers,
Tom