Book Image

ImageMagick Tricks

By : Sohail Salehi
Book Image

ImageMagick Tricks

By: Sohail Salehi

Overview of this book

<p>The book is packed with interesting and fun examples. We had a lot of fun coming up with cool ways to demonstrate ImageMagick's power, and we're sure you'll have fun learning how to create them.<br /><br />Although the printed book is in black and white, there is a full colour PDF of the screenshots freely available that includes all of the images in the book. Use it to see exactly what the ImageMagick effects look like in colour, or browse through it and see just what you'll learn to do with this book.<br /><br />ImageMagick is a free software suite to create, edit, and compose bitmap images using text-based commands. The commands can be issued from the command line, but more often will be included in web or desktop applications &acirc;&euro;&ldquo; carrying out complex image-manipulation tasks in response to the user's input.<br /><br />ImageMagick is a popular way for generating images on-the-fly in web pages, whether it's generating thumbnails from a large image, or creating complex combinations of images, text, and effects chosen by a visitor or the web site's creator.</p>
Table of Contents (18 chapters)
ImageMagick Tricks
Credits
About the Author
About the Reviewers
Preface
5
Identify, Display, and Import
Index

Chapter 8. Practical Web Projects

Some of the most important uses of ImageMagick are its web capabilities and online image processing features. We can perform almost any command-line image handling on websites too. There are two ways for calling ImageMagick from a web page:

  • Installing command-line ImageMagick utilities on the server and using a PHP function like exec or system for running these utilities

  • Installing Magickwand for PHP on the server and calling the library functions that Magickwand provides for image handling

Please keep in mind this is not a PHP training book and we assume you have some basic knowledge about PHP and dynamic web programming. Installing and configuring ImageMagick on a Linux server has been described before. During this chapter we assume that you’ve installed it on your server correctly.