RLEZOOM(1) 1 (Feb 27, 1987) RLEZOOM(1)
NAME
rlezoom - Magnify an RLE file by pixel replication.
SYNOPSIS
rlezoom factor [ y-factor ] [ -f ] [ -o outfile ] [ infile ]
DESCRIPTION
This program magnifies (zooms) an RLE(5) file by a floating
point factor. Each pixel in the original image becomes a
block of pixels in the output image. If no y-factor is
specified, then the image will be magnified by factor
equally in both directions. If y-factor is given, then each
input pixel becomes a block of factor x y-factor pixels in
the output. If factor or y-factor is less than 1.0, pixels
will be dropped from the image. There is no pixel blending
performed. Input is taken from infile, or from the standard
input if not specified. The magnified image is written to
the standard output, or outfile, if specified.
You should use rlezoom over fant(1) if you just want a quick
magnification of an image with the pixel boundaries showing.
It is significantly faster than fant because it does no
arithmetic on the pixel values. If you need blending
between pixels in the magnified image, then fant is the
correct program to use. Use rlezoom-f factor y-factor to
produce an image the same size as fant -p 0 0 -s factor y-
factor for previewing purposes.
Note: due to the way that scanargs(3) parses the arguments
from the command line, if the name of infile is a number,
and it is in the current directory, you should prefix it
with "./" so that it will not be confused with factor or y-
factor.
SEE ALSO
fant(1), urt(1), scanargs(3), RLE(5).
AUTHOR
Spencer W. Thomas, Gerald A. Winters.
Page 1 (printed 12/1/98)
