[TechNinja] Ojamajo Doremi Sharp Movie [BD x264 Hi10p 1032p FLAC]

Category:
Date:
2021-02-20 03:46 UTC
Submitter:
Seeders:
5
Information:
No information.
Leechers:
0
File size:
1.1 GiB
Completed:
208
Info hash:
9c02bbc60579d8c975a362a1ed50921b82421a48
**Description** The pixelated mess of a release was my main motivation for doing this right. I downscaled the BD and then upscaled it properly resulting in a much better image. All the pixelation is gone and there is no detail loss in the backgrounds. I encoded the original PCM audio to FLAC. The subs and fonts are from Doremi. The chapters are from the BD. This is a larger version of my [516p release](https://nyaa.si/view/1345614). **Info** Video: 1920x1032p x264 10-bit Audio: FLAC 2.0 Sub: Doremi Chapters: yes **Tech Note** The backgrounds were scaled fine but the characters were horribly pixelated from nearest-neighbor scaling. To begin I downscaled the BD to the largest 16:9 resolution that's both smaller than 480p and a multiple of 2. This is because while the original resolution is around 480p, 480p doesn't have a perfect 16:9 ratio. I needed to match the BD since I don't know the exact native resolution. After cropping and encoding to lossless yuv444p 832x448, I extracted all the frames to png. I then used Waifu2x with the CUnet model to double the resolution. I know there are other programs that use Waifu2x specifically for video upscaling but since I haven't inspected their claims for myself yet I played it slow and safe. It only took ten and a half hours with my GTX 1060 6GB, to give a reference point. Finally I encoded the 1664x896 png frames to yuv420p10le 1920x1032 with spline upscaling. For some weird reason ffmpeg treats rgb input as bt601 so I had to convert to bt709. I didn't do a 3x Waifu2x upscale and downscale to 1920x1032 because it looked too artificial. The 2x with spline upscale looks more natural. TL;DR I fixed the pixelation using Waifu2x

File list

  • [TechNinja] Ojamajo Doremi Sharp Movie [BD x264 Hi10p 1032p FLAC] [71268AD5].mkv (1.1 GiB)