The present invention relates to the segmentation of an image into a main
area and a image segment for variable data differential gloss image
control. A single color is selected. Two or more different color
definitions are created by combining the selected single color with two
or more halftones having anisotropic structure characteristics which are
significantly different in orientation to each other while remaining
identical in density. By alternatively assigning the color definitions to
the image segment in accord with the variable data content, a variable
data differential gloss image may be superimposed within an image having
reduced data processing and storage requirements.