SMUSH(1) 1 (March 15, 1987) SMUSH(1)
NAME
smush - defocus an RLE image.
SYNOPSIS
smush [ -m maskfile ] [ -n ] [ -o outfile ] [ levels ] [
infile ]
DESCRIPTION
Smush convolves an image with a 5x5 Gaussian mask, blurring
the image. One may also provide a mask in a text file. The
file must contain an integer to specify the size of the
square mask, followed by size*size floats. The mask will be
normalized (forced to sum to 1.0) unless the -n flag is
given.
The resulting image is the same size as the input image, no
sub-sampling takes place. The levels option, which defaults
to one, signifies the number of times which the image will
be blurred. Each successive blurring is done with a more
spread out mask, so a smush of level 2 is blurrier than
piping two level one smush calls. If no input file is
specified, smush reads from stdin. If no output file is
specified with -o it writes the result to stdout.
SEE ALSO
avg4(1), urt(1), RLE(5).
AUTHOR
Rod G. Bogart
BUGS
Smush should probably automatically generate different sized
gaussians and other common filters.
Page 1 (printed 12/1/98)
