1. A method comprising: receiving optically captured data associated with printed media, wherein the received optically captured data represents a blue channel, a green channel and a red channel; combining data representing the blue channel, data representing the green channel and data representing the red channel to minimize image interference, to yield combined channel data; shifting the combined channel data to reduce image saturation; and using a programmed electronic processor or electronic hardware, searching for steganographic indicia in the shifted, combined channel data.