Infusing black and white with color

Back in Chapter 20 of the intermediate course, I showed you how to mix…a full color photo to make a…black and white one, which Photoshop calls grayscale.…But here's the problem.…If you submit a grayscale image to a commercial…printhouse, that photo will print to a single ink, black.…Why is that a problem?…A single ink offers at most 100 levels…of luminance, and even that is wildly optimistic.…But here's the thing,…none of those 100 levels is truly black.…I mean think about it, have you ever seen an ink that was so dark…that it sucked all the light from a room and rendered a page completely black.…

At best, black ink by itself is darkish gray.…So, how do you make those great,…super intense black and white photographs that you…see in high end glossy magazines with the…fashion ads and the fifth color fragrance rubs.…You use all the inks available to you.…And this is very important, you always print to white paper.…That way black is super saturated with a ton of ink,…and white is the brightest paper on earth with no ink whatsoever.…