Author Topic: Mosaic frames appear processed differently after seaming  (Read 1380 times)

Offline jbeyer

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I've been attempting to create a mosaic but after seaming the two images together the background on one of the images appears processed to enhance the detail while the other is much more muted.  The two images to be combined are created from two series of 10 exposures/image and are preprocessed and stacked.  I've used ABE on each just before the Star Alignment process but that's the extent of the work.  It seems the images are being "processed" differently at the same time the seaming is done.  Is there anyway to combine the two without the cosmetic changes occurring?

I've attached screen shots of the images prior to seaming -the background in both looks fairly similar.  Then after seaming.


Offline Dimitris Platis

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Re: Mosaic frames appear processed differently after seaming
« Reply #1 on: 2017 August 05 09:21:27 »
It is most likely an artifact from ineffective ABE. Give it one more go with DBE....

Offline jbeyer

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Re: Mosaic frames appear processed differently after seaming
« Reply #2 on: 2017 August 06 16:40:06 »
Thanks!  I'll give it a try. 

Offline Stu

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Re: Mosaic frames appear processed differently after seaming
« Reply #3 on: 2017 August 17 19:00:11 »
You can also try David Ault's dnalinearfit script.
http://trappedphotons.com/blog/?p=994


Offline jbeyer

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Re: Mosaic frames appear processed differently after seaming
« Reply #4 on: 2017 August 26 14:17:49 »
Thanks for the suggestion Stu.  I'll take a look.  JB

Offline DMouse

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Re: Mosaic frames appear processed differently after seaming
« Reply #5 on: 2017 September 08 06:38:26 »
HI, I have found mosaics with tough gradients work well by registering the mosaic images separately then combining with GradientMergeMosaic tool. Might be worth a shot.

Clear Skies

Paul

Offline jbeyer

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Re: Mosaic frames appear processed differently after seaming
« Reply #6 on: 2017 October 13 09:00:35 »
Thanks I'll give it a try.  Do you use any particular settings in registration?  I've been following the tutorial in Lightvortexastronomy - starting at step 4 since I only have two images.