The term “image” commonly refers to a representation of a segment of reality that has been rendered in some manner on a flat surface. As such, the two-dimensional image is thought to correspond to or portray the segment of three-dimensional reality. While panel paintings and most canvas paintings are formally defined by their framing borders, we also speak of images when referring to drawings, photographs and even videos. Indeed, individual images or pictures, each representing a snapshot in time, may be presented in a series to convey motion as well as spatial and temporal extent.
Although artists have traditionally made use of perspective, dimensions, colors and degrees of luminosity to ensure a compelling representation of reality, images need not have this as their aim, and may even be merely self-referential instead.