Returns a 2-D warping transform that maps points from pixel space of an output image - one created by calling Execute with the current params - into pixel space of the given input image. Returns Nothing if this object is uncalibrated or in linear mode.

Returns the 2-D linear transformation that maps points from calibrated space into the root (@) space of the output image, if it has been computed. Otherwise, returns Nothing. The transform is computed by calling Calibrate.