HTML5 Pre-resize images before uploading

Here’s a noodle scratcher.

Bearing in mind we have HTML5 local storage and xhr v2 and what not. I was wondering if anyone could find a working example or even just give me a yes or no for this question:

Is it possible to Pre-size an image using the new local storage (or whatever), so that a user who does not have a clue about resizing an image can drag their 10mb image into my website, it resize it using the new localstorage and THEN upload it at the smaller size.

I know full well you can do it with Flash, Java applets, active X… The question is if you can do with Javascript + Html5.

Looking forward to the response on this one.

Ta for now.

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