What kind of image artifacts are these?

[RadOD]

Any advice on what is causing these?  In particular I see a thick diagonal hazy band bottom right.  I similar thin horizontal band at the level of the core. And color splotchiness I've exaggerated in the second image.





To the integrated image I have
1. Auto background extracted
2. Background neutralized
3. Photometric color calibrated.

Images were acquired DSLR RAW and integrated with dark, bias and flats using the method described here: http://lightvortexastronomy.com/tutorial-pre-processing-calibrating-and-stacking-images-in-pixinsight.html

Any advice on whether this is from acquisition or processing or both?

[pfile]

could be the ABE step, or could just be LP gradients... what does the raw stack look like without any processing?

rob

[RadOD]

I think you must be correct about the first two.  Here is the integrated image with only an increase in contrast:




Splotchiness looks like chrominance noise described here? https://pixinsight.com/forum/index.php?topic=5498.msg37760#msg37760

[pfile]

yes that kind of color noise is pretty common with a DSLR... also was the image dithered? i feel like is see some 'walking' or 'rain' noise (diagonal streaks) in there as well

rob