A lot of these CV hacks work only on existing tech. If I a human can still recognize a face then it is almost certain that a better CV tool can. The bulletproof method is to wear clothing that entirely covers your face religious style clothing comes to mind. Total face covering may not be totally socially acceptable in your area but it almost certainly is more acceptable than dazzle makeup.
A fairly casual setup that looks pretty acceptable is to be riding/walking with a bike, helmet on, sunglasses on and a bandana covering the face (This is normal to stop bugs).
A fairly casual setup that looks pretty acceptable is to be riding/walking with a bike, helmet on, sunglasses on and a bandana covering the face (This is normal to stop bugs).