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+--- Thread: "Unsmooth" colors in color gradients in videos? Tonemapping issue? (/t-unsmooth-colors-in-color-gradients-in-videos-tonemapping-issue)
"Unsmooth" colors in color gradients in videos? Tonemapping issue? - SodR - 2025-01-04
Hi I have noticed that when there is a color gradient visible in playback, specially when the picture is going showing a gradient into a dark area. I guess this has to do with HDR tonemapping and transcoding? Is there any way to fix this to make it smoother?
See the attached photo for what I mean. Often this is even more prevalent but this was the first video I opened.
Thanks.
RE: "Unsmooth" colors in color gradients in videos? Tonemapping issue? - bitmap - 2025-01-04
Fairly sure this is banding, which H264 is pretty notorious for when trans- or encoded. HEVC is better and AV1 has the potential to improve even further. Not sure there's a way to tonemap free of some kind of artifacts.
RE: "Unsmooth" colors in color gradients in videos? Tonemapping issue? - SodR - 2025-01-04
Alright, thanks!