Definitions for "Digital Number"
Keywords:  pixel, soundwave, dem, sonar, gray
The numerical value of a specific pixel.
The value of a variable recorded for each pixel in an image; in the range of 0-255 for 8-bit data.
The gray level output from a digital camera (0-255 for an 8-bit system or 0-4095 for a 12-bit system).
A number representing the CCD output. Also called counts.