1. A method of combining an image with an imaging-related product, comprising: a) providing an image; b) using a processor to form an image-color histogram of spatially-coherent color clusters within the image, the image-color histogram indicating the frequency of occurrence of spatially-coherent related colors in the image; c) selecting one or more of the image colors having a frequency of occurrence in the image high enough to be visible to an image observer; d) selecting an imaging-related product having one or more of the selected high-frequency colors within the imaging-related product or having a color complementary to one or more of the selected high-frequency colors within the imaging-related product; and e) combining the image and the imaging-related product.