negative image loader Outputs negated image Outputs initial image The [inv+] performs an inversion on the data passed to it. If you consider inlet 0 as the variable "a" and inlet 1 as variable "b", [inv+] performs the operation "b-a" on the values passed to it. Outputs the result of the operation "b-a". number that the left inlet values will be subtracted from. a: the value to subtract b: the value to subtract from