?
Solved

Header from files ?

Posted on 2000-02-21
4
Medium Priority
?
149 Views
Last Modified: 2010-03-05

Can I get size info of a file (GIF, JPG etc.) from its header ?

After I upload a file using the "file" input type, I require the width and height of the uploaded image in my Perl program.
How can I get it?
0
Comment
Question by:leoleo
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 2
4 Comments
 
LVL 1

Accepted Solution

by:
dmag earned 200 total points
ID: 2544873
You want to use the Image::Size module. It knows 7 different file formats. Usage is simple:

use CGI ':all';
use Image::Size 'attr_imgsize';
print img({-SRC => '/server/images/arrow.gif',
  attr_imgsize('/server_root/server/images/arrow.gif')});


Get it from: http://www.cpan.org/authors/id/RJRAY/
0
 

Author Comment

by:leoleo
ID: 2544919

Thanks.

But how do I find out if a particular module is already present in our server?
0
 

Author Comment

by:leoleo
ID: 2544925

Thanks.

But how do I find out if a particular module is already present in our server?
0
 
LVL 84

Expert Comment

by:ozo
ID: 2545073
perldoc -l Image::Size
0

Featured Post

Industry Leaders: We Want Your Opinion!

We value your feedback.

Take our survey and automatically be enter to win anyone of the following:
Yeti Cooler, Amazon eGift Card, and Movie eGift Card!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

I have been pestered over the years to produce and distribute regular data extracts, and often the request have explicitly requested the data be emailed as an Excel attachement; specifically Excel, as it appears: CSV files confuse (no Red or Green h…
Checking the Alert Log in AWS RDS Oracle can be a pain through their user interface.  I made a script to download the Alert Log, look for errors, and email me the trace files.  In this article I'll describe what I did and share my script.
Explain concepts important to validation of email addresses with regular expressions. Applies to most languages/tools that uses regular expressions. Consider email address RFCs: Look at HTML5 form input element (with type=email) regex pattern: T…
Six Sigma Control Plans
Suggested Courses

752 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question