store image with data attributes in db and HTML 5 local storage

I edit images in a HTML5 Canvas and need to store the image path with the editing parameters in a) mySQL and b) HTML5 local storage.
The editing parameters are stored in data attributes.

TODO 1) Store image data in mysql DB
TODO 2) store image data in HTML5 local storage
TODO 3) LOAD stored images from DB into gallery and set data attributes
TODO 4) LOAD stored images from Local Storage into gallery and set data attributes
TODO 5) CLICK GALLERY ITEM if gallery item is clicked: loop through array, i need to call a function for each array item

Attached is a html file including the gallery script and more explanations.