Magazine article Folio: the Magazine for Magazine Management

Flamenco: A Solution to PostScript Moires?

Magazine article Folio: the Magazine for Magazine Management

Flamenco: A Solution to PostScript Moires?

Article excerpt

Ricbmond, Calif.-Moire patterns have been a perennial bugaboo of PostScript color output, creating an obstacle to the adoption of desktop technology in magazine production. By employing a dot geometry that's "radically simplified," Flamenco, a new software technology owned by The Color Group, eliminates moires while at creating more appealing textures and sharper, more faithful color, says Steve Schaffran, president o the company.

The key is single-angle color. Normally, rosettes are created by rotating screens at different angles, typically 45 (black), 75 (magenta), go yellow) and 105 (cyan). But PostScript screens miss these angles slightly, says Schaffran, and the result is a particularly noticeable rosette that constitutes the moire problem. Flamenco's solution is to lay down all four screens at a 45-degree angle. The dots are offset by an amount adjustable from within the program. With Flamenco, "since there are no rosettes, there can't be bad rosettes," says Schaffran. "Color is sharper because you don't have rosettes blurring things. You have a wider color palette and a more predictable color palette. "

Single-angle color is not a new concept, but Flamenco may be the first application to electronic publishing. John Seibt, manager of electronic imaging research and development at the Dallas Times Herald and a long-time proponent of single-angle color, says it creates better highlight and shadow detail, sharper images and the illusion of a higher line screen than truly exists. …

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