I add medium/heavy vignetting to some of my images, by choice.
As my images are B&W (16 bit), I then typically add uniform monochrome noise when I see banding. Occasionally, though, I see banding on the image rendered by the website I uploaded to, but not on my screen (lightroom, photoshop and preview look perfect).
So far, the only way around I've found to mitigate the problem is to use more noise and change the noise type to gaussian mode.
Are there other/better methods?
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