HoldForm[expr] prints as the expression expr, with expr maintained in an unevaluated form.
ImageAlign[image_1, image_2] returns a version of image_2 that is aligned with image_1.
LeviCivitaTensor[d] gives the d-dimensional Levi-Civita totally antisymmetric tensor.
MaxFilter[image, r] filters image by replacing every value by the maximum in its range r neighborhood. MaxFilter[data, r] applies max filtering to an array of data.
MeanFilter[image, r] filters image by replacing every value by the mean value in its range r neighborhood. MeanFilter[data, r] applies mean filtering to an array of data.
MedianFilter[image, r] filters image by replacing every value by the median in its range r neighborhood. MedianFilter[data, r] applies median filtering to an array of data.
MinFilter[image, r] filters image by replacing every value by the minimum in its range r neighborhood. MinFilter[data, r] applies min filtering to an array of data.
Most
(Built-in Mathematica Symbol) Most[expr] gives expr with the last element removed.
NestList[f, expr, n] gives a list of the results of applying f to expr 0 through n times.
Nest
(Built-in Mathematica Symbol) Nest[f, expr, n] gives an expression with f applied n times to expr.