The wavelet denoise plugin is a tool to reduce noise in each channel of an
image separately. The default colour space to do denoising is YCbCr which
has the advantage that chroma noise can be reduced without affecting image
details. Denoising in CIELAB (L*a*b*) or RGB is available as an option.
The user interface allows colour mode and preview channel selection.
The denoising threshold can be set for each colour channel independently.