Python utility to generate quadratic recursive zooming in gifs

Can zoom in linearly, quadratically and square like the following:

Limitations

Currently only optimized for square images, but can be changed easily

How to

Create a base image like zoom.png,
Find out the topleft x-y coordinates (INNER_X_LEFT, INNER_Y_TOP)
As well as the size of the cursive sub-image (INNER_SIZE)
Set gif params like steps, duration and resolution

Requirements

pillow/PIL, numpy