<P> In photography, headroom or head room is a concept of aesthetic composition that addresses the relative vertical position of the subject within the frame of the image . Headroom refers specifically to the distance between the top of the subject's head and the top of the frame, but the term is sometimes used instead of lead room, nose room or' looking room' to include the sense of space on both sides of the image . The amount of headroom that is considered aesthetically pleasing is a dynamic quantity; it changes relative to how much of the frame is filled by the subject . </P> <P> One rule of thumb taken from classic portrait painting techniques, called the "rule of thirds", suggests that the subject's eyes, as a center of interest, are ideally positioned one - third of the way down from the top of the frame . </P>

Headroom leadroom and noseroom are all examples of