Just put the altered version over the original in 'difference' transfer mode, and anything that isn't black has been altered.
These different transfer modes are commonly referred to as S100, S200, and S400.
Asynchronous Transfer Mode is a set of protocols used for computer networks.
There are a few recognized variations of these three transfer modes including modified short-circuiting and pulsed-spray.
Lucent and Nortel sell most of the equipment for today's network technology, called asynchronous transfer mode.
The P1 offers several wireless transfer modes.
Asynchronous Transfer Mode is often the communications protocol used.
Memory address decoding for the selection of 8 or 16-bit transfer mode was limited to 128 kB sections - A0000.
Those techniques include asynchronous transfer mode, which supports speeds from 1.5 megabits to the gigabit range.
Omnia was developing products using a technology called asynchronous transfer mode, which uses optical networks but is not itself an optical system.