Jquery/javascript image "pimping"

I need to create a web application allowing people to upload an image and place on it a pre-defined element (like placing sunglasses on a face), with all necessary functionalities like resize, crop etc.

something like this: http://bayifier.com/

I can do that with flash, but i'm wondering if there开发者_StackOverflow中文版 s a way to do it with javascript.

thanks

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you could use canvas and javascript like Pixastic does