Jon: I am not worthy of you.
Woman: You got that right.
Jon: So much for humility.
Garfield: You got that right.
The author writes:
In "No. 465: Collaborative Cat Skinning", we saw the results of combining three independently coloured strips, with each version contributing a different colour channel to each panel. In this strip, the same experiment is repeated in the hue, saturation, value (HSV) colour space.
The source images are the same as used in #465. The first image, by Manyhills, provided the hue information for the first panel, colour saturation for the second, and brightness/value for the third.
The second image, by Henning Makholm, contributes the hue channel to panel 2, saturation to panel 3, and brightness for panel 1.
Finally, the third image, by Taneb, is used for the remaining channels: hue of panel 3, saturation of panel 1, brightness of panel 2.
HSV/HSL is possibly the most "sensible" colour space to do the combining in, given the intuitiveness of the components. In the interests of thoroughness, however, I've attached a version also in the YCbCr colour space. Æsthetically speaking, it has an interesting progression from "happy" to "depressed" atmosphere in the three panels, completely by accident: