Videomaker – Learn video production and editing, camera reviews › Forums › Technique › Editing › Make subject color, and background black and white. › kro490, Sounds like a job
Sounds like a job for chromakey. Shoot your subject in front of a green screen. In post production, use your editor’s chromakey function to add a black&white image to the background.
(Search this forum for “green screen” or “chromakey” to get tips on how to do this.