Re: [Gimp-user] image alignment/registration

[Pat David <patdavid gmail com>]

Align_image_stack is usually the best option other than possibly attempting
it manually directly in Hugin.
On Sat, Feb 4, 2017 at 8:57 PM Casey Connor <gimp-user-list caseyconnor org>
wrote:

> Hi - I was curious what the best overall image alignment plugin/method
> in GIMP (or out of GIMP) was these days?
>
> "Best" for me means "most powerful/flexible/option-rich".
>
> I've come across the hugin align_image_stack, the G'MIC plugin's "Align
> layers" option, and the image registration plugin
> <http://gimp-image-reg.sourceforge.net/>. (I've also used the "Exact
> Aligner" script, but it's two layers only.)
>
> The goal is to align and then use mean/median for noise reduction
> stacking. I'll probably be working in 16bit.
>
> Do all three methods do sub-pixel alignment? I read someone on pixls.us
> suggesting that the user upscale the source images by up to 1.33x before
> aligning for the sake of effectively achieving sub-pixel alignment, but
> if the current alignment methods do that anyway, seems like I should
> skip it... ?
>
> Thanks!
>
> -c
>
>
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-- 
Pat David
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