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The aim of color calibration is to measure and/or adjust the color response of a device (input or output) to a known state.[1] In International Color Consortium (ICC) terms, this is the basis for an additional color characterization of the device and later profiling.[2] In non-ICC workflows, calibration sometimes refers to establishing a known relationship to a standard color space[3] in one go. The device that is to be calibrated is sometimes known as a calibration source; the color space that serves as a standard is sometimes known as a calibration target.[citation needed] Color calibration is a requirement for all devices taking an active part in a color-managed workflow and is used by many industries, such as television production, gaming, photography, engineering, chemistry, medicine, and more.