These epoxy filled carvings are not an image printed on wood.  The image is defined by using CNC machinery to carve the image into the wood with the dark areas cut deep and the light areas cut shallow and then pouring tinted epoxy in the carving.  When an image is printed on paper, the more ink or toner laid down on the paper the darker that part of the image. Similar with my epoxy engravings, the darker the part of the image, the deeper it’s carved and the more tint is in that area. Generally, the deepest parts are around .25 inch, so the image has a ¼ inch “depth” to it. This depth gives the image a look that is hard to see when viewing on a monitor.

Carving before pouring epoxy.