vzmag − magnify 3D images or image sequences along the z direction

vzmag [if=<infile>] [of=<ofile>] [m=<amount>] [-v]

Vzmag changes the size of a VisionX image by applying a linear interpolation along the z direction. The default magnification factor is 2.0. Reductions can be achieved by using a magnification of less than one. The z index values and frame markers are recomputed and the new frame markers start from 1.

All numeric valued image types are accepted by vmag, but indexed images will be step interpolated. The image must contain frame markers.

m=<amount>

explicitly specifies the magnification value.

-v

selects the verbose mode and prints some information about its action.

The current implementation uses floating point operations for all data types, which makes it rather slower than it should be in some cases; however, the final result is correct.

A. P. Reeves