[timb]

the newest chrome has support for transferable objects that can be sent directly to a worker without being copied. this works with ArrayBuffer now, not sure if ImageData is transferable yet, but it should be eventually.

demo: http://html5-demos.appspot.com/static/workers/transferables/...

[franze]

nope, the canvaspixelarray is no arraybuffer, doesn't work yet. i check for changes in that regard with every google chrome canary release.