Which color reproduction method uses filters and halftone screens?

• A. Offset lithography
• B. Three-color process
• C. Duplex printing
• D. Digital color

Answer: (B)

Color reproduction using filters and halftone screens relies on separating an image into color components with filters and then printing each component through a halftone grid. The three-color process uses three color separations created with filters (for example, red, green, and blue or their subtractive equivalents) and applies a halftone screen to each. When these three printed separations are overlaid with their respective inks, a full-color image is produced. This approach is distinct from offset lithography, which is a general printing method; duplex printing, which simply means printing on both sides of a sheet; and digital color, which relies on electronic rasterization rather than physical color separations and screens.