CMYK color model CMYK color model The CMYK color model (process color, four color) is a subtractive color model, used in color printing, and is also used to describe the printing process itself. CMYK refers to the four inks used in some color printing: cyan, magenta, yellow, and black. The CMYK model works by partially or entirely masking colors on a lighter, usually white, background. The ink reduces the light that would otherwise be reflected. Such a model is called "subtractive" because inks "subtract" the colors red, green and blue from white light. White light minus red leaves cyan, white light minus green
Combination printing the common belief that photography is a simply mechanical, straightforward process with no creative elements. Combination printing remained a great way of working with changing images to add that creativity. Combination printing Combination printing is the photographic technique of using the negatives of two or more images in conjunction with one another to create a single image. Similar to dual-negative landscape photography, combination printing was technically much more complex. The concept of combination printing stemmed from the desire to create more of a fine art within photography and often more idealized images. Combination printing was popular in the mid-19th century