Digital Signal Processing Handbook P52

Digital representation of images is important for digital transmission and storage on differentmedia suchasmagnetic or laser disks. However, pictorial material requires vast amounts of bits if represented throughdirectquantization. As an example, anSVGAcolor image requires 3600800bytes D 1; 44 Mbytes when each color component is quantized using 1 byte per pixel, the amount of bytes that can be stored on one standard 3.5-inch diskette.