just-noticeable difference

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Related to just-noticeable difference: Weber's law
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Noun1.just-noticeable difference - (psychophysics) the difference between two stimuli that (under properly controlled experimental conditions) is detected as often as it is undetected
difference limen, difference threshold, differential limen, differential threshold - the smallest change in stimulation that a person can detect
psychophysics - the branch of psychology concerned with quantitative relations between physical stimuli and their psychological effects
References in periodicals archive ?
However, you do know that six VMAF points equals one just-noticeable difference (JND).
Video quality measurement itself is a highly subjective field, though increasingly Just-Noticeable Difference and Picture Quality Rating are finding acceptance.
The award citation was "for their many contributions to the objective assessment and prediction of display image quality, including the development of the first display-quality metric quantified in perceptual units of just-noticeable differences (JNDs).