In the Manchurian Candidate, it is revealed that the Communists have been using the soldier Shaw as a sleeper agent, a guiltless assassin subconsciously activated by seeing the “Queen of Diamonds” playing card while playing solitaire. Provoked by the appearance of the card, he obeys orders which he then forgets.
Isn’t an image just like a sleeper agent waiting for the trigger when passed in a detection algorithm?