Thank you. I learned some very useful things in this video. For example, I have the SETI Astro scripts loaded into PixInsight, but I had no idea that Find Background did what you demonstrated. I’ve always been a little bit anxious about picking the background sample, fearing I wasn’t doing it right. Now, thanks to Franklin, I can have it done automatically. And the main point of the video reinforces doing Linear Fit at the beginning of the process. This was 20 minutes well spent!
the big difference , is the order you use ADBE , before or after SPCC...You change 2 factors , linear fit AND the order you use background extraction ..'.
Exactly. Both of those will change what SPCC does. The reason they were ordered this way in the video was to answer the question of why not use SPCC to get rid of the color cast in the beginning. Doing so will still need the background extracted, thus rendering SPCC void.
To make a fair comparison of whether you need to do linear fit to get rid of the colour cast as well as SPCC, you should have done auto DBE before SPCCearly, not after - as stated you have changed two variables so the question of whether linear fit is needed has not been addressed.
Thank you. I learned some very useful things in this video. For example, I have the SETI Astro scripts loaded into PixInsight, but I had no idea that Find Background did what you demonstrated. I’ve always been a little bit anxious about picking the background sample, fearing I wasn’t doing it right. Now, thanks to Franklin, I can have it done automatically. And the main point of the video reinforces doing Linear Fit at the beginning of the process. This was 20 minutes well spent!
the big difference , is the order you use ADBE , before or after SPCC...You change 2 factors , linear fit AND the order you use background extraction ..'.
Exactly. Both of those will change what SPCC does. The reason they were ordered this way in the video was to answer the question of why not use SPCC to get rid of the color cast in the beginning. Doing so will still need the background extracted, thus rendering SPCC void.
To make a fair comparison of whether you need to do linear fit to get rid of the colour cast as well as SPCC, you should have done auto DBE before SPCCearly, not after - as stated you have changed two variables so the question of whether linear fit is needed has not been addressed.