A method of quantifying perceptual information and entropy for a data input signal
uses an appropriate perceptual model to produce a perceptual response. The perceptual
response is then entropy converted to produce the perceptual information and entropy.
The entropy conversion may include the application of a transform function, such
as a Karhunen-Loeve transform function, to the perceptual response to produce a
set of coefficients, which coefficients then have probabilities calculated for
them based on coefficient histograms of massive tests. The probabilities are used
to calculate the perceptual information and entropy using standard techniques.
The perceptual information and entropy may be used in applications for achieving
greater accuracy subjective quality determinations for the data input signal.