Grayscale images

A grayscale image looks like a black and white image. It is represented by 8 bits per pixel, that is, 256 intensity values or tones ranging from 0 to 255. These 256 shades move from pure black to pure white; 0 represents pure black while 255 represents the color white.

The preceding image is a grayscale image. It is a black and white image where shades move from pure black to pure white.