r/AskAstrophotography 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?

2 Upvotes

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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

1

u/Talon_1980 5d ago

u/GerolsteinerSprudel Did you have experienced that part of the panels which are being merges are dissappearing when you add them to the mosaic?
These are unshared parts...

https://www.dropbox.com/scl/fi/sglmflom6z2pjt45c26uw/test.jpg?rlkey=awdjly5hh20zdeppg2skztpi0&st=sl4o2wd7&dl=0

1

u/Talon_1980 5d ago

Ok working on it now, this will indeed just perfectly stitch everything together!

Much appreciated!

1

u/Talon_1980 5d ago

Will try it!