METHOD FOR OBTAINING LATENT IMAGE Russian patent published in 2008 - IPC G06T5/00 G06K9/00

Abstract RU 2337403 C2

FIELD: physics.

SUBSTANCE: method involves image conversion into latent image containing multiple couples of latent image elements. Latent image elements in each couple are spatially correlated to each other and correspond to one or more converted image elements. Conversion is performed by assigning visual property value characterising one or more converted image elements to first latent image element of each couple, and assigning visual property value complementary to visual property assigned to the first latent image elements to second latent image element of the same couple.

EFFECT: enhanced quality of protection measures.

41 cl, 26 dwg

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RU 2 337 403 C2

Authors

Makkarti Lorens Dehvid

Svidzhers Gerkhard Frederik

Dates

2008-10-27—Published

2004-06-04—Filed