1. A method comprising: using a processor to form an image-color histogram of spatially-coherent color clusters within an image, wherein the image-color histogram indicates a frequency of occurrence of spatially-coherent color clusters within the image, and wherein the spatially-coherent color clusters are groups of similarly-colored pixels that are spatially adjacent within the image; selecting, via the processor, an image color from the image-color histogram having a frequency of occurrence in the image high enough to be visible to an image observer; selecting, via the processor, an imaging-related product having the selected image color or having a color complementary to the selected image color, wherein the selecting the imaging-related product includes: forming a product color histogram of spatially coherent color clusters within the imaging-related product, wherein the product color histogram indicates a frequency of occurrence of spatially coherent related colors in the imaging-related product; selecting a product color having a frequency of occurrence in the imaging-related product high enough to be visible to an image observer; and matching the selected product color with the selected image color; and combining, via the processor, the image and the imaging-related product.