Grayscale, in photography, is a range of gray shades that are used in a monochrome display or printout. The term grayscale is often used interchangeably with the phrase “black and white,” but the two terms are actually not the same. While black and white images only contain the two colors of black and white, grayscale images include the range of gray shades in between black and white. The pixels in grayscale images only contains information on the amount or intensity of light.