is an error which causes the reproduced picture to be geometrically different from the original picture.

An error that results in the reproduced picture to be geometrically different from the original

A display flaw in which perfectly straight horizontal and vertical lines appear slightly bowed. (4/99)

The warped look of objects in a television picture due to erratic scanning of the electron beam in the picture tube or vidicon tube. A circle may look egg shaped or a straight line look like a curve.

A monitor effect where straight lines are slightly curved because of the curvature of the monitor's screen.

The warping or alteration of the true proportions of an image--often just in specific areas.