Re: [Gimp-user] image alignment/registration

[Casey Connor <gimp-user-list caseyconnor org>]

> I tried align_image_stack many times, using different options combinations, but
> coudn't get aligned images in the end.

Per recommendations here, I've used it and it worked really well; I've 
read, and experienced, that it seems to need images to be pretty close 
already. Meaning, by default it won't assume the images should be 
aligned a great distance, so if you moved much while shooting it might 
not work out. You might investigate the -g option -- I'm not totally 
clear on how it works, but it sounds from the description like it might 
change the scale which align_image_stack uses to find control points. 
Maybe also the -t option?

You could also check out hugin, which AFAIK uses align_image_stack under 
the hood to do its alignment. It allows all kinds of manual 
intervention/editing of control points. I understand that a "one-click" 
solution is ideal, but mention it just in case. You can at least 
visually see what's happening with the control points and understand 
better where things are going wrong.

-c