What is "rotoshop"

Rotoshop is a proprietary graphics editing program created by Bob Sabiston.

Rotoshop uses an animation technique called interpolated rotoscoping, which has been used in Richard Linklater's films Waking Life and A Scanner Darkly, as well as the Talk to Chuck advertising campaign for Charles Schwab. The name is a play on Photoshop, a photo editing program from Adobe. The software is not currently available for use outside Flat Black Films, the developer of Rotoshop.