Linux / Unix Command: pnmsmooth

Command Library

NAME

pnmsmooth - smooth out an image  

SYNOPSIS

pnmsmooth [-size width height] [-dump dumpfile] [pnmfile]  

DESCRIPTION

Smooths out an image by replacing each pixel with the average of its width X height neighbors. It is implemented as a C progam that generates a PGM convolution matrix and then invokes pnmconvol.  

OPTIONS

-size width height

Specifies the size of the convolution matrix. Default size is a 3x3 matrix. Width and height sizes must be odd. Maximum size of convolution matrix is limited by the maximum value for a pixel such that (width * height * 2) must not exceed the maximum pixel value.

-dump dumpfile

Generates and saves the convolution file only. Use of this option does not invoke pnmconvol.

 

SEE ALSO

pnmconvol(1), pnm(5)  

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