ABSTRACT
Electro-optic displays are among the most used and most useful sensors in almost all systems where a man-machine interface is required. The number of applications of these displays, in one technological form or another, is growing in what seems to be an unbounded manner. The visual quality of an image on a display surface, as the image is perceived by the human eye, is generally referred to as the image quality. The first requirement of a visual display device is that the displayed information must be “seen”—easily, accurately, and without ambiguity—under the conditions of use. Increased luminance contributes to display legibility by increasing the acuity of the eye—the ability to separate fine detail such as individual dots or lines on the display surface. An “average observer” under average lighting conditions has an angular acuity of approximately 1 min of arc. Physical measures of image quality attempt to define or describe pertinent image statistics relative to a baseline or ideal image.
