Average-Interpolating DownSampling Operator
[Beta,alfa] = AIDyadDown(afine,D,F,EF)
fine-scale block averages
degree of polynomial fit in average-interpolation
filter implementing average-interpolation
edge filter of average-interpolation
coarse-scale block averages
detail corrections
Splits information afine on fine scale block averages into coarse scale block averages Beta and detail corrections alfa.