HOW COMICS FOOL THE EYe
Have you ever looked closely at the illustrations in an old comic book? Can you see that the color or shades of gray are actually tiny dots?
These dots range in size and color. If the dots are small enough, the human eye will merge them into a smooth, continuous tone. Squint your eyes at the enlarged halftone illustrations above. Can you see how the dots begin to blend?
Because printers could not print continuous tone, halftones dots were used as a way of “fooling the eye.” Animations based on comic superheros also use this technique.