How can I edit a binary image in PHP?

Question

How can I display and edit binary images in PHP? For example, how can I edit the image below bit-by-bit in PHP?

(Click image to enlarge.)

Answer 1

The specific function calls that you'll need to use depend largely on what exactly you'd like to do to the image. However, PHP uses the GD library, which covers an extensive range of image manipulation abilities.

Here are some tutorials to help you get started:

• http://forum.codecall.net/php-tutorials/1624-php-tutorial-getting-know-gd.html
• http://php.net/manual/en/book.image.php
• http://php.about.com/od/advancedphp/ss/gd_library.htm