Batch Preprocess Script: What happens when . . .

[Terry Danks]

Hi All:

I have a mix of 15-min and 30-min subs with matching darks for each.

Is the batch preprocess script able to distinguish one from the other and apply the right darks to each?

[Ignacio]

I will venture a response, as nobody has jumped in yet.

I would reduce and integrate a master light for each set separately, and then register and average combine both, using additive+scaling and either exposure time or noise evaluation as weighting, with no pixel rejection.

cheers
Ignacio

[Juan Conejero]

Hi Terry and Ignacio,

Sorry for the late response. No need to generate separate master frames manually. The BatchPreprocessing script classifies and groups dark frames by exposure time. It will automatically generate, find and apply the best master dark frame for each light frame. Just select all your biases, darks, flats and lights - BatchPreprocessing will do everything automatically.

If you have light frames with different exposure times, the ImageIntegration tool (which you should use manually after BatchPreprocessing) will integrate all of them in a single operation. ImageIntegration will compute image weights based on noise estimates to maximize SNR in the integrated result. For more information, see the reference documentation for this tool.

[Ignacio]

Great! thanks Juan. Does it also discriminate according to ISO settings?

best
Ignacio

[Terry Danks]

This script is just fantastic!
Thanks for the clarification, Juan.

Terry