Reference

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nlmeans

Arguments:

Description:

Apply non local means denoising of Buades et al, 2005. on selected images.

The patch is a gaussian function of std_patch_radius.
The spatial kernel is a rectangle of radius spatial_bandwidth.
The tonal kernel is exponential (exp(-d^2/_tonal_bandwidth^2))
with d the euclidean distance between image patches.

Default values:

patch_radius=4, spatial_bandwidth=4, tonal_bandwidth=10 and patch_measure_command=-norm.

Example of use:

$ gmic image.jpg +noise 10 nlmeans[-1] 4,4,{0.6*${-std_noise}}
Command: image.jpg +noise 10 nlmeans[-1] 4,4,{0.6*${-std_noise}}
Command: image.jpg +noise 10 nlmeans[-1] 4,4,{0.6*${-std_noise}}