The work on printed anaglyphs described in this paper builds upon previous work that some of the authors of this paper published on crosstalk with anaglyph images on emissive displays such as liquid crystal displays (LCDs), plasma display panels (PDPs), digital light projection televisions (DLP TVs) and cathode ray tubes (CRTs).4,13,21,34 Emissive displays and printed images differ in the way that the image and color is generated. Emissive displays use the additive color model (by additive mixing of red, green and blue color primaries) whereas printing uses the subtractive color model (by subtractive mixing of cyan, magenta and yellow inks).35Figure 1 provides an illustration of the difference between the additive color and subtractive color models. With an emissive display, the screen starts from a black base and then red, green or blue light is added in various combinations to produce a wide range of colors. For example, when red and blue light are added together [Fig. 1(a)] the result is a magenta color, and when red, green, and blue light are used together (in an appropriate balance), the additive result is white. In contrast to emissive displays, the starting point with color printing is a blank white page. The most commonly used primary color inks are cyan, magenta and yellow—commonly called “process inks.”35 With reference to Fig. 2, it can be seen that the yellow ink mostly attenuates (subtracts) light in the blue spectral region ( to 500 nm) whilst not substantially attenuating light in the green ( to ) and red ( to ) regions. Ideally the magenta ink attenuates (subtracts) light in the green spectral region, and cyan ink attenuates (subtracts) light in the red spectral region, while not attenuating light outside these regions. In printing, the application of cyan ink attenuates the red spectral band so it can be thought of as “minus-red,” and similarly magenta ink can be thought of as “minus-green,” and yellow ink as “minus-blue.” The combined printing of the three printing inks (cyan, magenta and yellow) in varying density allows a wide range (gamut) of colors to be presented. For example, when cyan and magenta inks are printed together [Fig. 1(b)], a blue color is generated. When ideal cyan, magenta and yellow inks are printed together, all light reflected off the white page is absorbed and a black area is created. This description serves to illustrate that the process of generating printed anaglyph 3D images is similar but has notable differences to anaglyph images on emissive displays, and these differences mean that the analysis and optimization of printed anaglyphs need to be different.