Improving Overlap E...
 
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Improving Overlap Edges from Multiple Sessions without perfect alignment


(@richk67)
Molecular Cloud Customer
Joined: 1 year ago
Posts: 7
Topic starter  

I took just under 14 hours of shots of the Markarian's Chain with my Canon 6D mkii (non-modded). This was done in 4 sessions, with flats, darks, and bias for each night. APP 1.082 has done a nice job on the central portion of the chain from my composition, but the edges of the mis-aligned frames are clearly visible in the background. Each session had a meridian flip, and I think the bottom image edge doesn't flatten out always, so appears top and bottom in these images as faint bands.

Are there any tips you may have that could improve the integration so that these bands don't appear?

I've attached the stretched integrated image, and a crop to show the crop I would like. For those interested, I've also attached my processing of the core. Happy with that part, but I'd like to have the wider composition with some of the surrounding galaxies.

All help and comments appreciated. Thanks.

MarkariansChain
MarkariansChain RGB StretchCropIdLike
MarkariansChain RGB Stretch

 


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4736
 

Yes, enable LNC and MBB (Multi Band Blending) in tab 6 Integrate. Did you do that? I would use the standard settings for LNC and MBB to about 10%. If you did do that, you can go to each panel integration and perform LPC correction first, save that and repeat that for each panel, then mosaic integrate it again, followed by another LPC correction on the mosaic.


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(@richk67)
Molecular Cloud Customer
Joined: 1 year ago
Posts: 7
Topic starter  

@vincent-mod Ah, I did do LNC level 1 3step, but not the MBB. I'll try that now 🙂


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(@richk67)
Molecular Cloud Customer
Joined: 1 year ago
Posts: 7
Topic starter  

That fixed it... many thanks. Just switched on Multi Band Blending 🙂

MarkariansChain2 NoBanding

 


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(@vincent-mod)
Quasar Admin
Joined: 5 years ago
Posts: 4736
 

Awesome, have fun! 🙂


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