my ($width,        $height       ) = ...;
my ($max_width,    $max_height   ) = (800, 600);
my ($width_factor, $height_factor) = ($max_width/$width, $max_height/$
+height);

if ($width_factor < 1 || $height_factor < 1) {
   my $factor = ($width_factor < $height_factor
      ? $width_factor
      : $height_factor
   );

   $width  = int($width  * $factor + 0.5);
   $height = int($height * $factor + 0.5);
}
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The above was extracted from a script I use to resize images.

#!/usr/bin/perl -w
use Image::Magick;

my $x = $ARGV[0];
my $image = Image::Magick->new;
#$image->Read($x);
#my ($w,$h)= $image->Get('columns','height');
#print $x,' is ',$w.'x'.$h,"\n";
#this is very inneficient memory wise, use Ping

($width, $height, $size, $format) = $image->Ping($x); 
print $width,"\n", $height,"\n" ,$size,"\n", $format,"\n";
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#!/usr/bin/perl

# I need to adjust an image to a minimum size, but without distoring i
+t, 
# so I basically want to add space evenly around the existing image. 
# Using Resize is out since that will distort the image, so I gave 
# "Composite" a shot,

use Image::Magick;
use strict;
use warnings;

my $im = Image::Magick->new();
my $bg = Image::Magick->new(size => "200x400");

my $rc = $bg->Read("xc:white");

$rc = $im->Read($ARGV[0]);
die $rc if $rc;

$rc = $im->Resize("200x400");
warn $rc if $rc;

$rc = $bg->Composite(gravity => "Center", image => $im);
warn $rc if $rc;

$rc = $bg->Write("$ARGV[0]-resized.png");
die $rc if $rc;
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I'm NOT trying to resize the image itself, just the HTML code of the image.

I suggest not doing that. Browsers suck at scaling images, and transfering all those bytes across a network just to have detail thrown away is a waste of bandwidth.

use Image::Size;

my ($w, $h) = imgsize("blort.jpg");
if ($w > 800) { my $f = $w / 800; $w = int($w/$f); $h = int($h/$f) };
if ($h > 600) { my $f = $h / 600; $w = int($w/$f); $h = int($h/$f) };
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