yuvdenoise(1)

💖 yuvdenoise(1) — the MJPEG tools manual, bestie edition 💖

okay so welcome to the MJPEG tools manual page for yuvdenoise, and honestly? she's a baddie. let's get into it.

✨ NAME ✨

yuvdenoise — Motion-Compensating-YUV4MPEG2-frame-denoiser 👑

🦋 SYNOPSIS 🦋

yuvdenoise [options] </dev/stdin >/dev/stdout

🌸 DESCRIPTION 🌸

so yuvdenoise is a spatio-temporal noise-filter for YUV4MPEG2 streams. it is, like, genuinely useful — it reduces the bitrate you need to encode your captured movies for VCD and SVCD creation. less noise, fewer bits, main character energy. periodt. 💅

🎀 OPTIONS 🎀

yuvdenoise accepts the following options, bestie, and every single one of them matters:

• -g y,u,v [0..255] — Gaussian filter thresholds ✨ this sets the thresholds for the gaussian filter. a value of 0 disables filtering for a specific component, and 0,0,0 completely disables/bypasses the filter. this filter is applied before the temporal (-t) filter. (default=0,0,0)
• -m y,u,v [0..255] — Pre 3D Median filter thresholds 💜 this sets the thresholds for the pre-processing 3D median filter. a value of 0 disables median filtering for a specific component, and 0,0,0 completely disables/bypasses the filter. this filter is applied before the temporal (-t) filter. (default=0,0,0)
• -r y,u,v [0..255] — Renoising filter thresholds 🍓 this sets the thresholds for adding random "noise" back into the video stream. default is disabled (not adding random noise). this filter, if enabled, is run as the Blast filter (after the median and temporal filters). a reasonable value is 4,8,8, but if you are working with monochrome (black and white movie) then 4,0,0 will speed things up by not processing the chroma planes. 🔥 (default=0,0,0)
• -t y,u,v [0..255] — Temporal noise-filter thresholds 🌈 this sets the thresholds for the temporal noise-filter. values above 12 may introduce ghosting 😭. the default value for Y' (y) is often a little high, and reducing it to 4 or 5 may be necessary. if the chroma smears or ghosts, try using values of 5 or 6 instead of the default (12). a value of 0 disables temporal filtering for the specified component (0,0,0 disables/bypasses all temporal filtering). thus for black and white movies 4,0,0 will be faster by not denoising the chroma planes. 🧚 (default=4,8,8)
• -M y,u,v [0..255] — Post 3D Median filter thresholds 👑 this sets the thresholds for the post-processing 3D median filter. a value of 0 disables median filtering for a specific component, and 0,0,0 completely disables/bypasses the filter. this filter is applied after the temporal (-t) filter. a reasonable value is 4,8,8, but if you are working with monochrome (black and white movie) then 4,0,0 will speed things up by not processing the chroma planes. 💫 (default=0,0,0)

💀 HOW IT WORKS 💀

To Be Written (maybe) in the future.

ngl bestie, she said "maybe". we wait. 🙈

🫶 TYPICAL USAGE AND TIPS 🫶

since it's self-adapting to the noise-situation found in the stream, you normally just can go without any options set — iconic behaviour honestly:

lav2yuv my-video.avi | yuvdenoise | mpeg2enc -t 1 -o my-video.m1v

⭐ AUTHOR ⭐

this man page was written by Stefan Fendt <stefan@lionfish.ping.de> and revised by Steven Schultz. legends only. 🫡

🌈 ADDITIONAL INFO 🌈

if you have questions, remarks, problems, or you just want to contact the developers, the main mailing list for the MJPEG-tools is:

mjpeg-users@lists.sourceforge.net

for more info, see our website at

http://mjpeg.sourceforge.net/

💖 SEE ALSO 💖

mjpegtools(1), mpeg2enc(1) lavrec(1) lav2yuv(1)

okay that's the whole page!! this came from the MJPEG Tools Team, dated 11th August 2005 — so yes she's vintage, she's still slaying, no cap. go denoise something gorgeous. 💅✨🎀🦋🌸