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This is a high effort filtering and encoding for Jishou Akuyaku Reijou na Konyakusha no Kansatsu Kiroku.
slow.pics compare: https://slow.pics/c/0H6kLeie

This anime is quite harsh and has a lot of issues.
For filtering, as usual, we first merge the OP using vsdenoise.frequency_merge.
After that, we use a MVTools based processing focusing on two issues: stablising the heavy grain in the source and stabilising the flickering lineart in panning scenes. In order to fix the flickering and also maximise encoder detail retention, we choose MotionMode.COHERENCE for caculating MVs. For blocks with no valid MVs, we use a tuned DFTTest + bm3d to denoise. At last, to prevent removing too much noise in flashback scenes, we protect the processing with a frame mask made from MVTools.mask and std.PlaneStats.

This anime has fairly strong aliasing and halo, and even chroma halo, but unfortunately it's not descalable.
We use EEDI2 via vsTAAmbk.TAAmbk and a gaussian based method via fmtc.resample to AA.
For dehalo, on luma, we use vsdehalo.dehalo_alpha to dehalo, protected by mask created via vsdehalo.fine_dehalo.mask and a bilateral based protection. On chroma, we perform a light dehalo using vsdehalo.edge_cleaner, protected by mask created via vsdehalo.fine_dehalo.mask.

For encoding, we use latest May 26 version of 5fish/SVT-AV1-PSY. We use --lineart-psy-bias 3 --texture-psy-bias 4 as a base, while setting --noise-psy-bias 2 --texture-ac-bias 3.0 --texture-energy-bias 1.10, making it halfway to --texture-psy-bias 5. For --crf, we use --crf 24.80 for this encode, and we also set --high-quality-encode-psy-bias 1. At last, to minimise unpleasant ringing caused by the remaining noise after filtering, we use --psy-bias-sharpness-rounding 52.
We add a decently coarse layer of Simplex noise via a custom photon noise table to the encode.

Thanks to all the people creating the tools, plugins and vsfunc's that make this possible, and thanks to everyone in the community for teaching me, pointing out issues, and giving me advice.

If you're interested in AV1 encoding for anime, you are welcome to join AV1 weeb edition at https://discord.gg/83dRFDFDp7.

You are welcome to do anything with this encode, including remuxing and republishing it. However, we would ask you to leave a credit to Kekkan if you can.

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