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[SOLVED]Speed up star extraction?

Posted: Fri May 10, 2019 8:23 pm
by rottielover
Platesolving is is very fast, but the part that is slowing me down is the star extraction part. It's taking nearly a full minute.

"Amount of stars extracted from image, 1st pass 42186, 2nd pass 1496, computation time : 58.02 sec"

Is there any tips/tricks for speeding up that part of the process? If so my platesolving would be lightning fast.

Re: Speed up star extraction?

Posted: Fri May 17, 2019 11:02 am
by rottielover
I have not had any more issues with this in my last 2 sessions. I increased the exposure times for these plate solves from 10 sec to 30 sec, and now they extract and solve within seconds.

While on the front end it seems like more time since you're increasing the exposure time an extra 20 seconds, it's really saving me 40 seconds of the software struggling to extract the stars from my "bad" image I handed it.

Hope this helps someone in the future.

Re: Speed up star extraction?

Posted: Wed May 22, 2019 9:56 am
by Hamza Touhami
PRISM will try and extract all the stars on your image to provide an assurance that it will find the enough stars to center properly. One has to remember that it also needs to understand what the background is and also need a good SNR. If the image is clean, and the background can be easily extracted,it will do it very quickly.

Suggestions:
  • Cool down the camera
  • ALWAYS ALWAYS ALWAYS Bin for plate solving even if you have a color camera.