Color Science - Understanding Delta-E
Delta-E (ΔE) is a measurement used to indicate how much a color deviates from an accepted standard. The higher the ΔE, the more inaccurate the color. Perfect color has a ΔE of zero. However, we need not achieve a ΔE of zero. This is because the human eye is only capable of detecting color difference at certain thresholds. The minimal detectable difference is about 1 ΔE. Calibration generally seeks to achieve a ΔE for white and all of the primary and secondary colors of no more than 2.5. However, unless a display has a fully-realized color management system (the vast majority do not), it is unlikely that calibration can achieve this level of performance for the primary and secondary colors. On the other hand, since virtually all displays have a full compliment of gray scale adjustments, calibration can usually meet this standard for white.
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Delta-E (ΔE) is a measurement used to indicate how much a color deviates from an accepted standard. The higher the ΔE, the more inaccurate the color. Perfect color has a ΔE of zero. However, we need not achieve a ΔE of zero. This is because the human eye is only capable of detecting color difference at certain thresholds. The minimal detectable difference is about 1 ΔE. Calibration generally seeks to achieve a ΔE for white and all of the primary and secondary colors of no more than 2.5. However, unless a display has a fully-realized color management system (the vast majority do not), it is unlikely that calibration can achieve this level of performance for the primary and secondary colors. On the other hand, since virtually all displays have a full compliment of gray scale adjustments, calibration can usually meet this standard for white.
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