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Glossary > Photography >Dynamic Range
Dynamic Range
The number of colors or shades of grey that can be represented by a pixel. The smallest unit of data stored in a computer is called a bit. Dynamic range is a measurement of the number of bits used to represent each pixel in a digital image. 1-bit or bitonal means that a pixel can either be black or white. Bitonal imaging is good for black and white images, such as line drawings and text. However, scanning in grayscale rather than bitonal may produce a better looking image. 8-bit color or 8-bit grayscale means that each pixel can be one of 256 shades of color or one of 256 shades of gray. 24-bit color means that each pixel can be one of 16.8 million colors.
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