A new camera app for iPhone lets you erase annoying tourists, cars or other objects that block your perfect shot. Spectre uses AI technology to stabilise long-exposure photos, focusing on the stationary part of a frame erasing moving parts, including people and objects. Near-perfect holiday snaps of beautiful views cluttered with people appear as if you have beaten the crowds and arrived to enjoy scenic vistas all to yourself. A new camera app for iPhone lets you erase annoying tourists, cars or other objects that block your perfect shot. Halide, the company behind the software, says its new app can generate such'magic' photos by using AI technology in several ways.