1. A method for generating a multi-layer correlation mark via a monochrome printer, comprising: setting, by a processor, a first scalar value of a channel of the monochrome printer; setting, by the processor, a second scalar value of the channel of the monochrome printer, wherein the first scalar value and the second scalar value each comprises a percentage value between 0 percent and 100 percent of a level of modulation of the channel, wherein the second scalar value and the first scalar value have a difference greater than 25 percent; generating, by the processor, a first layer of the multi-layer correlation mark at the first scalar value of the channel; generating, by the processor, a second layer of the multi-layer correlation mark at the second scalar value of the channel; and printing, by the processor, the multi-layer correlation mark comprising the first layer at the first scalar value of the channel and the second layer at the second scalar value of the channel.