Hi Sean,
good work. This weekend I was thinking on another possibility for this script... It would be a direct measure of bias and light frames.
In the utility script section you have a script for evaluating the noise of one image (NoiseEvaluation). The idea would be:
- Load a bias frame and analyse the noise.
- Load a preview of the light frame containing a background sky area. Then analyse the noise.
From the ratio between noise intensity in the two frames you can calculate the appropriate exposure time.
The main advantage I see here is that maths are very simple: just copy and paste the NoiseEvaluation script.
Regards,
Vicent.