Luminous Landscape Forum
Raw & Post Processing, Printing => Adobe Lightroom Q&A => Topic started by: David Eichler on March 23, 2011, 06:49:50 am
-
I am seeing banding when using the Lightroom gradient tool. Example attached. The original file was done with a solid color fill layer in Photoshop, with the gradient applied in LR3.
Also, I am sometimes seeing banding in blue skies when exporting jpegs from LR3, at high quality settings including 100% quality. If I export the file from LR as a
Tiff and then convert to jpeg in Photoshop, I do not see the banding. The original file is always either RAW or a 16 bit uncompressed Tiff. The banding is a slight posterization, not the same as with the gradient tool.
Any ideas or suggestions?
-
I had a similar problem a while ago and nailed it down to the inferior monitor that I was using then (I suspect that it only used 6-bits per channel not the normally expected 8-bits). Even then, I only experienced it whilst viewing images in Photoshop (CS4), the same image viewed in LR3 did not show the banding. Now that I have a better monitor, I do not see the banding on these same photos in either location. Incidentally, I do not see any banding on the sample that you provide. So, could your monitor be the problem? I have heard of other people adding small amounts of noise to the gradient-treated area to (apparently) nullify or reduce the issue.
-
Add noise