MPCD (Minimum Perceptible Color Difference)

This is a unit of measure, developed by the CIE, to define the change in light and color required to be just noticeable to the human eye. The human being in this MPCD unit is defined as "a trained observer" because there are differences in the way each of us perceives light.

This is a unit of measure, developed by the CIE, to define the change in light and color required to be just noticeable to the human eye. The human being in this MPCD unit is defined as "a trained observer" because there are differences in the way each of us perceives light.