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RLEZOOM(1)             DragonFly General Commands Manual            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.

4th Berkeley Distribution      February 27, 1987                    RLEZOOM(1)

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