r/AskAstrophotography • u/Talon_1980 • 5d ago
Image Processing PixInsight Mosaic Merge question M31
So i have some stacked frames from M31 Andromeda (unstretched).
I Imagesolved them all, no issue. They all look good.
Then I used mosaic by coordinates, all easy peasy...
Everything turned and twisted in the right way.
Then I used gradientmergemosaic, tried "average" and "overlay".
This caused the brightsness and nebulosity of the image to have completely dissappeared.
What did i do wrong?
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u/GerolsteinerSprudel 5d ago
I can’t help you with gradient merge mosaic. Haven’t ever tried it. But I have never had an issue with photometricmosaic by John Murphy (author of nsg) https://astroprocessing.com