[okiestars (Art Trail)]

Hello everyone!

I am experimenting with my image processing, and have attempted my first image with a dark frame. I am using most of the process outlined in Mike Salway's article from IIS (Thanks Mike!), with the exception of splitting the RGB's because I am not ready to purchase Astra Image for combining them.
What I have accomplished by adding my dark frame is to obliterate my image with what I would describe as a 'heavy weave' artifact (see attached images).
The good image was processed with 1000 bmps, no Dark or Ref frames. The bad image was processed with no Ref frame, but with a dark frame created with Registax from 30 frames of dark video (corrector plate cover installed). I am using a Celestri=on NexImage camera.

Has anyone ever seen this before?

Thanks!

Art