[Neo] Vague-Denoiser

[MeteorRain]

Neo filters family is not to be confused with AviSynth-Neo. Neo filters family is not affiliated in any way with AviSynth-Neo.

[Neo] Vague Denoiser → GitHub

Vague Denoiser is a wavelet based denoiser.

Basically, it transforms each frame from the video input into the wavelet domain, using Cohen-Daubechies-Feauveau 9/7. Then it applies some filtering to the obtained coefficients. It does an inverse wavelet transform after. Due to wavelet properties, it should give a nice smoothed result, and reduced noise, without blurring picture features.

It was originally written by Lefungus, and later modified by Kurosu and Fizick for further improvement. VapourSynth-VagueDenoiser was ported to VapourSynth interface and refactored by HolyWu. Kudos to them for creating and improving this fantastic tool.

Difference compared to VapourSynth-VagueDenoiser

• Dual interface, supporting AviSynth+ and VapourSynth
• Added SSE and AVX routine

Result bit-identicalness

• Neo-Vague-Denoiser C - VapourSynth-VagueDenoiser C: identical
  ===== ===== ===== =====
• Neo-Vague-Denoiser SSE - C: non-identical due to order of floating point addition and multiplication
• Neo-Vague-Denoiser AVX - C: non-identical due to order of floating point addition and multiplication
  PSNR on default parameters:
  8-bit ~93dB; 16-bit ~115dB
  
• Neo-Vague-Denoiser SSE - AVX: identical