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A Common Moiré Pattern

Reducing images with checkered or herringbone patterns often creates the Moiré look as in the above example. At the top, the pillow reduces correctly but the checkered fabric in the chair creates a swirling Moiré effect.

Halftone Examples

When printing halftones, rosettes are formed if the screens are registered properly. The magnified view at the bottom shows the misaligned rosettes, which actually create the Moiré pattern. (Images courtesy of Adobe Systems, Inc.)

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