A 640 X 480 monochrome image would require 38.4 KB of storage. Where the value represents the shade of gray of the pixel. A 640 X 480 grayscale image would require 307.2 KB of storage. The size of a color image depends upon the number of shades of each primary color that is stored.
Monitors are capable of displaying millions of colors.
This yields acceptable color quality, but does not compare to 35mm photographic quality. A 640 X 480 24-bit color image would require 921.6 KB of storage. 8 to 1,024 bytes bitmap data varies JPEG standard created by the Joint Photographics Experts Group utilizes compression techniques that are specifically designed for photographic images. takes advantage of limitations in the human vision system to achieve high rates of compression. For comparison purposes the following buttons can be used to view scaled versions of the previous image.