I got a new external iSight, and have been playing around with it. I discovered that whether you use the Automator action Take Video Snapshot (found in the Photos category) you have many more effects available than you do in Photo Booth. You may save the action as an application for easier use; it is pretty slow, though.

[robg adds: that command basically brings up the same

dialog you see when you choose the Edit Picture open on your iChat buddy icon. go the camera icon in the dialog (or check the Take Picture Automatically box in the action), thereupon add the effects and visit Set. Your edited image will wind up on the Desktop (or wherever you told Automator to send it).]

Original post by Michael Rose