1. A recording apparatus comprising: a face recognition unit which recognizes a face of a person in a decompressed input image frame; a recording position setting unit which sets a scene change start frame comprising an image frame in which the person appears as a valid recording point if the recognized face is detected for a predetermined period of time or detected a predetermined number of times, and identifies a position, which corresponds to the set scene change start frame, in an image compression stream; and a recording unit which records the image compression stream from the identified position, and stores the recorded image compression stream in real time, wherein the recording unit deletes the recorded image stream if the recognized face is not detected for the predetermined period of time or the predetermined number of times.