How do I scale and rotate an image to achieve auto-Alignment

[darkownt]

Hi all:


I am working on something really interesting for extracting a PSF from blurry images.

I need to find a way to automatically scale, rotate, or otherwise align two images which are similar but may differ by a small amount of blur due to a PSF of a specific small size (say 11 by 11 pixels), and by a scale factor and angle of rotation. 

Does anyone know how to use PixInsight to automatically align the images?

For now I am dealing with general image types.. i.e. both star and planetary (or terrestrial) real or simulated images.

I'd appreciate any tips!!


Cheers
Colin

[georg.viehoever]

Hi,

use the Staralignment process. You may need to disable "Use scale differences" to get it working with images having different scales. If this fails: Dynamic Alignment can often do it after aligning a hand ful of stars (manually).

Georg