Ken Burns Effect on actionscript3

I want to develop a zooming effect like this gallery: http://www.monoslideshow.com/ Can anyone give me a hint? I'm not sure about the math that开发者_开发百科 i have to do for getting something similar Thanks in advance

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All that is really happening in that gallery is a Tween on multiple parameters. To replicate this effect, over a few seconds, increase scaleX and scaleY a small amount and choose a random direction in which to move the image (also a small amount such that you don't move the image out of view - move it only by as much canvas space you gain from scaling).

i.e.: 200x200 image, if you Tween to scale 1.05, you would be dealing with 10 extra pixels in either direction.