Kohana 3.x provides a simple yet powerful image manipulation module. The Image module provides features that allows your application to resize images, crop, rotate, flip and many more.
Image module ships with Image_GD driver which requires GD extension enabled in your PHP installation. This is the default driver. Additional drivers can be created by extending the Image class.
Before using the image module, we must enable it first on APPPATH/bootstrap.php:
Kohana::modules(array(
...
'image' => MODPATH.'image', // Image manipulation
...
));
Next: Using the image module.