VDOWNVisionX V4 
NAME
vdown − downsamples an image
SYNOPSISvdown [if=<inputimage>] [s=] [-w]
DESCRIPTIONvdown performs image downsampling (reduction) by averaging. The reduction scale (integer) in x and y direction is set by s= (default 2) and the z reduction scale is computed accordingly to maintain the xy to z resolution. If z scale is less than 1, it is set to 1.
OPTIONS| if= | input intensity image | |||
| s= | reduction scale (default 2) | |||
| -w | wish flag for reduction scale (xs,ys,zs) | 
vsairw(1)
AUTHORA. P. Reeves