pnmconvol

all

Convolute a PNM image.

Examples (4)

Convolve a PNM image with the specified convolution matrix

pnmconvol -matrix=-1,3,-1 path/to/image.pnm > path/to/output.pnm

Convolve a PNM image with the convolution matrix in the specified files, one for each layer in the input image

pnmconvol -matrixfile path/to/matrix1,path/to/matrix2,... path/to/image.pnm > path/to/output.pnm

Convolve a PNM image with the convolution matrix in the specified PNM file

pnmconvol path/to/matrix.pnm path/to/image.pnm > path/to/output.pnm

Normalize the weights in the convolution matrix such that they add up to one

pnmconvol -matrix=-1,3,-1 -normalize path/to/image.pnm > path/to/output.pnm