[Flashcoders] Bitmap data convert luminosity to alpha

So I want to to the blacks to alpha's in my bitmap data - the darker it is, the more transparent I want it - how do I go about solving this problem. I'm throwing stuff in threshold but so far I'm having no joy at all. Cheers M ECM Systems Ltd, Ellifoot Park, Burstwick, East Yorkshire HU12

Re: [Flashcoders] Bitmap data convert luminosity to alpha

MM So I want to to the blacks to alpha's in my bitmap data - the darker it MM is, the more transparent I want it - how do I go about solving this MM problem. MM MM I'm throwing stuff in threshold but so far I'm having no joy at all. ColorMatrixFilter is your friend :) Attila