Web graphics or short animations are typical GIF files. With only 256 colors, a GIF is inappropriate for a digital photo.

A pixel's brightness level.

This is the spectrum of shades of gray and black and white of an image.

This equipment is often found in airplanes and helicopters to which you attach your camera to keep it steady while shooting aerial photography.

This is a picture that has been reproduced, using a screen of various sized dots, to give the appearance of shades of gray. Publications typically use this process as well as inkjet printers. This reproduction method reduces moir