Dynamically pixelate an html image element

Posted by Chris Armstrong on Stack Overflow See other posts from Stack Overflow or by Chris Armstrong
Published on 2010-03-18T15:49:54Z Indexed on 2010/03/18 15:51 UTC
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Filed under:

html

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JavaScript

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pixel

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html5

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canvas

I'm to take an image on a webpage, and then use javascript (or whatever would be best suited) to dynamically 'pixelate' it (e.g. into 20px squares). Then, as the user scrolls down the page, I need the image to gradually increase in resolution, till it is no longer pixelated.

Any ideas how I could go about doing this? I realise I could use php to resize an image and several times and just switch out the image, but that would require loading several extra images. Also, I know I could probably do the effect with flash & pixelbender, but I want to achieve it within the limitations of HTML5, CSS & Javascript if possible.

Appreciate any thoughts!

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