Editing Image resolution (section)

===Radiometric resolution===
{{Main|Color depth}}
[[Radiometric]] resolution determines how finely a system can represent or distinguish differences of [[luminous intensity|intensity]], and is usually expressed as a number of levels or a number of [[bit]]s, for example 8 bits or 256 levels that is typical of computer image files. The higher the radiometric resolution, the better subtle differences of intensity or [[reflectivity]] can be represented, at least in theory. In practice, the effective radiometric resolution is typically limited by the noise level, rather than by the number of bits of representation.