pnmnlfilt

all

Apply a non-linear filter onto a PNM image.

Examples (3)

Apply the "alpha trimmed mean" filter with the specified alpha and radius values onto the PNM image

pnmnlfilt 0.0..0.5 radius path/to/image.pnm > path/to/output.pnm

Apply the "optimal estimation smoothing" filter with the specified noise threshold and radius onto the PNM image

pnmnlfilt 1.0..2.0 radius path/to/image.pnm > path/to/output.pnm

Apply the "edge enhancement" filter with the specified alpha and radius onto the PNM image

pnmnlfilt -0.9..(-0.1) radius path/to/image.pnm > path/to/output.pnm