Perl - Grab image size?

[salewit]

Hi there. I'm a beginer in Perl, and I wrote this kind of dynamic catalog for this customer of mine which sells framed images. I used MySQL and everything is working great. There is one little detail I'd like to do, but it's not the end of the world if it isn't possible.

I show these images as thumbnails, and if a person clicks on the thumbnail, I open a new window with a larger sized image in it. That larger sized image varies greatly and there are 600 images. When I open in a new window, I'd like to set the width/height of that new window to match the size of the image so the user isn't having to always resize each time a window opens. Is there any way to get those parameters from within Perl?

Although it isn't totally done yet, you can check it out at www.art4kids.com/simplecatalog.html

Thanks
Sam

[salewit]

Duh! Actually I found the info myself. It was the first thing that popped up on a Google search. It is using the Image::Size module.

But I didn't really know how to use it, and found this site that gave a working example, but it doesn't work. Our Perl here says the module is included.

This is the entire test Perl file I used (I changed test.jpg to a known image location).

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

# Just fetch the size
my ($size_x, $size_y) = Image::Size::imgsize("test.jpg");
print "Image is: $size_y x $size_x (height x width)\n";

# HTML-friendly format
my $size = Image::Size::html_imgsize("test.jpg");
print "Here is my image <img src=\"test.jpg\" $size>\n";

exit();

I got a 500 error, and then added:

print "Content-type:text/html\n\n";

The error went away and the output I got was:

Image is: x (height x width)

I'm 100% positive of the location of the jpeg file. I tried several different ones relative and with the full address and get the same thing. Anyone?

[apgraham]

Image::Size has pod documentation that gives a more complete overview, but
in a nutshell:

use Image::Size;

($x, $y) = imgsize("something.gif");

And ($x, $y) is now the width and height of something.gif.