CmdID / Commands
pnmsmooth
Smooth out a PNM image. tldr-pages
On several platforms
Smooth out a PNM image using a convolution matrix of size 3x3
pnmsmooth path/to/input.pnm >path/to/output.pnmIdentify
Smooth out a PNM image using a convolution matrix of size width times height
pnmsmooth -width width -height height path/to/input.pnm >path/to/output.pnmIdentify