The Band module reduces horizontal and vertical banding/striping, often caused by read noise.
Using the Band module is quite straight forward; simply specify the orientation of the banding ("Horizontal" or "Vertical") and click 'Do'. An 'algorithm' parameter switches between two subtly different algorithms that attempt to reduce banding. If the default algorithm ('Algorithm 1') does not produce satisfactory results, 'Algorithm 2' may possibly yield better results.
The two aspects - color and luminance - of your image are neatly separated thanks to StarTools' signal evolution Tracking engine.
You can convert everything you see to a format you find convenient. Give it a try!