Images stack history display on a web page

[ccaramel]

Hi,
A very cool feature would be to be able to store lightweight images representing the history of the stack progress.
Thus, during a presentation, using a slider on the rendering web page, the presenter (ie the user) could navigate from 2 stacked images to latest stacked image.
By this way, it becomes easy to illustrate the effect of capturing many images to stack them, visually.

Good job!