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Lets leave the CC-by-SA stuff for Meta. It is ultimately the responsibility of the poster to be aware of licensing when posting their content, and we have plenty of meta topics on the subject for those who are concerned.
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jrista
jrista
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This is apparently a dynamic range issue BUT where it is occurring is the question.
As you get darker the lower intensity areas have less bits to convey intensity and banding will occur as of right BUT how badly it occurs depends on the factors mentioned below. Without knowing them it's hard to help.

Is this evident in the original image?
Is camera set to best possible quality?

What camera? What camera settings? What processing software? What compression applied?

This may be a camera artefact, or a processing one. It may be due to compression. anywhere along the chain. We need the original image as a starting point. Can you save the original image somewhere so we can view it.

Note: IF you save it to this site it automatically assigns it a creative commons licence - you may or may not want to do that.

This is apparently a dynamic range issue BUT where it is occurring is the question.
As you get darker the lower intensity areas have less bits to convey intensity and banding will occur as of right BUT how badly it occurs depends on the factors mentioned below. Without knowing them it's hard to help.

Is this evident in the original image?
Is camera set to best possible quality?

What camera? What camera settings? What processing software? What compression applied?

This may be a camera artefact, or a processing one. It may be due to compression. anywhere along the chain. We need the original image as a starting point. Can you save the original image somewhere so we can view it.

Note: IF you save it to this site it automatically assigns it a creative commons licence - you may or may not want to do that.

This is apparently a dynamic range issue BUT where it is occurring is the question.
As you get darker the lower intensity areas have less bits to convey intensity and banding will occur as of right BUT how badly it occurs depends on the factors mentioned below. Without knowing them it's hard to help.

Is this evident in the original image?
Is camera set to best possible quality?

What camera? What camera settings? What processing software? What compression applied?

This may be a camera artefact, or a processing one. It may be due to compression. anywhere along the chain. We need the original image as a starting point. Can you save the original image somewhere so we can view it.

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Russell McMahon
Russell McMahon
  • 19.7k
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This is apparently a dynamic range issue BUT where it is occurring is the question.
As you get darker the lower intensity areas have less bits to convey intensity and banding will occur as of right BUT how badly it occurs depends on the factors mentioned below. Without knowing them it's hard to help.

Is this evident in the original image?
Is camera set to best possible quality?

What camera? What camera settings? What processing software? What compression applied?

This may be a camera artefact, or a processing one. It may be due to compression. anywhere along the chain. We need the original image as a starting point. Can you save the original image somewhere so we can view it.

Note: IF you save it to this site it automatically assigns it a creative commons licence - you may or may not want to do that.