Method and apparatus for generating digital, angled halftone...

Details Method and apparatus for generating digital, angled halftone... Method and apparatus for generating digital, angled halftone...

H - Electricity

04

N

H04N 1/40 (2006.01) H04N 1/405 (2006.01)

Patent

CA 2104294

In digital halftone color printing, low spatial frequency patterning can occur due to the interaction of the overlapping angled halftone screens. The moire patterning can be minimized by automatically constructing digital halftone angled screens (110) from screen tiles (8) which are designed to minimize the low spatial frequency patterning.

Dans l'impression numérique de couleurs en demi-teinte la superposition à basse fréquence spatiale peut avoir lieu du fait de l'interaction des écrans de demi-teinte à angle se chevauchant. On peut réduire au minimum l'effet de moirage par construction automatique d'écrans numériques (110) de demi-teinte à angle à partir de carreaux d'écran (8) conçus pour réduire au minimum la superposition à basse fréquence spatiale.

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