Hi
You could use the Sapphire plug in called Sketch.
If you own Photoshop CS2 you could do it with a Batch-Action.
>In AE :Export your footage as a image sequence (jpeg,Tif…)
>In PS :make your own Action or download one from here https://share.studio.adobe.com/axBrowseProductType.asp?t=5
>Go to File=>Automate>Batch.Now choose your source/destination folder…
>Once you’re done with your Action process in PS,reimport your images as a image sequence in AE