Image Transform: Resize, crop, rotate, flip, flop and grey images

This class can be used to perform several image manipulation operations.

It can open images in the GIF, JPEG or PNG formats and perform operations like resizing, cropping, rotating, flip or grayscale convert.

Resized images keep the original proportions.

The transformed images can be stored in server side cache files to avoid overhead of serving images processed with the same operations.

Processed images are served as the output of the current script.