denoise node blender and their denoise pass

Hi everyone !
Would be nice to have a denoise node like the one in blender compositor.
There’s denoiseSharpen node but I’m not sure it can deal with blender’s denoise normal or albedo pass.
the goal would be to not deal with blender’s compositor just to denoise render pass then composite them in natron.

When denoising render passes in blender, you should not use the denoiser from the compositor (either Natron or Blender), but the one intergrated in Cycles: Denoising — Blender Manual
The noise present in render passes is very specific to the rendering algorithm, and does not look like common noise found in camera footage.