Page "Posterization" Paragraph 5

Posterization is a process in photograph development which converts normal photographs into an image consisting of distinct, but flat, areas of different tones or colors.

A posterized image often has the same general appearance, but portions of the original image that presented gradual transitions are replaced by abrupt changes in shading and gradation from one area of tone to another.

Printing posterization from black and white requires density separations, which one then prints on the same piece of paper to create the whole image.

Separations may be made by density or color, using different exposures.

Density Separations may be created by printing three prints of the same picture, each at a different exposure time that will be combined for the final image.