0-9 | A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z
A figure of merit for image quality. (188) Note: In an image, definition is usually expressed in terms of the smallest resolvable element, such as lines per inch, or pels per square inch.