Stackistry: algorithms summary

[GreatAttractor]

Hello everyone,

 

I've added a description of algorithms used by Stackistry/libskry (an open-source cross-platform stacker):

 

link to PDF

 

[JamesF]

I'll definitely have a read of that.

I have had some instances where stackistry hasn't done a particularly good job.  Full disc lunar images in particular.  Triangles often seem to get left out and appear black in the final image.

Is there anything I can do that might help sort that out, or any change I could make that might help?

James

[GreatAttractor]

Unfortunately, the reference point alignment phase is not yet as robust as I'd like (though usually works fine for my Hα material). In general, changing some of these processing settings may help:

• search radius: try 5-10
• structure threshold: try higher values
• brightness threshold: try higher values
• structure scale: try 2-3

I have a few ideas for improving this, so stay tuned.

[JamesF]

Thank you.  I'll give those a go and see what happens.

James