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+--- Thread: Help with fixing grain artifacts (/thread-2215.html)
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Help with fixing grain artifacts - Garfield9 - 18.12.2021
Hi, I would like to know if there is a way to fix grain artifacts left from heavy dnr and sharpening in anime video. I attached two screenshots that show the problem, its those grain streakes appearing on the edges. I am just not sure if there is a function that can either smooth that out or fix it in some other way. Also I heard about something called contrast equalizer that can help with this but I am not sure what it is.
RE: Help with fixing grain artifacts - Selur - 19.12.2021
I can look at it on Wednesday. Atm. I'm only online from (time to time) using my smartphone and looking at the images on that screen I'm not sure what the problem is: a wild guess of mine would be to try aWarphSharp as sharpener it usually helps sharpening edges which for cartoons and anime can helt with noise around edges.
RE: Help with fixing grain artifacts - Garfield9 - 19.12.2021
(19.12.2021, 12:18)Selur Wrote: I can look at it on Wednesday. Atm. I'm only online from (time to time) using my smartphone and looking at the images on that screen I'm not sure what the problem is: a wild guess of mine would be to try aWarphSharp as sharpener it usually helps sharpening edges which for cartoons and anime can helt with noise around edges.
Thanks for the suggestion. I will try that. If you could look at it when you can like you say I would appreciate it thanks. Also the problem is for example on the second picture you see how the smoke has that leftover grain structure on its edges? I thought to add grain on top to compensate but I thought maybe I could instead smoothen it.
RE: Help with fixing grain artifacts - Selur - 22.12.2021
Got a small sample of the source?
RE: Help with fixing grain artifacts - Garfield9 - 22.12.2021
You mean video sample? Sure but I cant post it it says its I cant attach it. Its 2 uncompressed avi samples around 100mb each.
RE: Help with fixing grain artifacts - Selur - 22.12.2021
You would have to upload it somewhere else (like googledrive or similar) and either post a link here or send one to me via pm.
(also you might want to overthing your workflow if you use uncompressed avi files; there are tons of lossless compression formats,..)
Cu Selur
RE: Help with fixing grain artifacts - Garfield9 - 22.12.2021
Alright there, two samples
https://drive.google.com/file/d/1DhcUh_ctvaUK9m43aUafsex_3qneKAzY/view
https://drive.google.com/file/d/1VuKRlJ6A0CLqlu9ICVjCvCddqP_AXfA7/view
also why is uncompressed avi bad? It takes a lot of time to render and a lot of space but which other uncompressed format is better?
RE: Help with fixing grain artifacts - Selur - 22.12.2021
Re-read what I wrote I adviced that using un-compressed avi is not the best idea, better use lossless compression.
Files can't be downloaded,...
Cu Selur
RE: Help with fixing grain artifacts - Garfield9 - 22.12.2021
Right ok I losslessly encoded them with Hybrid, here
https://drive.google.com/file/d/19SV0BN9tKGplTyHb14xrEPQe4Tbo-6d1/view
https://drive.google.com/file/d/1SLZeubIxQcG4r3ATaRcADBrC5KoyWUIk/view
RE: Help with fixing grain artifacts - Selur - 22.12.2021
Files can't be downloaded,...