片语
Minimum Perceptible Color Difference最小知觉色差
minimum perceptible chromaticity difference最小可辨色差
least perceptible chromaticity difference最小可辨色度差
minimum perceptible difference最小视觉色度差
minimal perceptible difference最小可觉差别
minimum perceptible colour difference最低可见色差
minimum perceptible brightness difference最小可辨亮度差
just perceptible difference最小可辨差异
least perceptible difference最小可觉差