``Gray-scale inversion'' -- Gray-scale inversion

purpose:

Invert a gray-scale volume. Each gray level is replaced by (255-original gray level).

input:

An 8-bit volume.

output:

An inverted version of the input 8-bit volume.

parameters:

Default parameters menu is

input from vol # = 0
* copy output to vol # = 0
*

comments:

1. A very fast function.

Updated: Fri May 19 14:39:07 CDT