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6
votes
2answers
323 views

What causes a band-like pattern in photos of a CFL?

CFL Image The image in the above link is that of a compact fluorescent light bulb. I couldn't figure out the reason for the formation of light and dark bands sort of thing in the image. The same ...
5
votes
2answers
3k views

Why does darkening skies in Photoshop cause banding, and how can I avoid it?

I am pretty new to Photoshop (I have Elements 10). When I darken highlights I find that the sky ends up in bands. I have read advice that says to reduce the effect of this by using either blur or ...
4
votes
2answers
3k views

What causes banding noise?

I'm looking for information (and references) on three related topics: What causes banding noise in CMOS sensors? What is the physical/technological cause? Is the cause the same in CCD and CMOS ...
0
votes
0answers
46 views

How can I remove color banding from a picture (without Photoshop)? [closed]

I'm trying to get rid of color banding on some (computer generated) pictures. This is one example: http://image.noelshack.com/fichiers/2014/05/1391007137-ruby.jpg The picture has color banding in the ...