Hi Mike — thanks for this explanation. That clarifies things immensely. Will rescale per your suggestion, and look forward to the next version. Thanks much!
Alright...more experimentation. I think I've figured this out.
If I turn off Background Neut in NBColorMapper it outputs the expected linear image like this:
Stats are good -- consistent with linear:
If I then apply background neut separately wit…
A further test. I used the Colourise process to independently color my channels (again, not being careful...just a test), and then screened two of these together using ImageBlend.
This is the ImageBlend result screen stretched.
And here are the sta…
Screenshots would help, wouldn't they?
Here is the Ha screen stretched. I linear fit SII and OIII to this.
Here's the stats for Ha (linear fit OIII and SII being similar):
After color mapping (no stf output checked -- just straight color map and o…