PROGRAM-IMPLEMENTED METHOD AND DEVICE FOR COUNTERFEITING PROTECTION

摘要

computer systems for shaping enciphered or encoded printed character images by digital method. SUBSTANCE: method and system provide for integration of source image with latent one; encoded latent image becomes visible only when viewed through special lens of decoder. Digital processing makes it possible to encipher various latent images for different parameters. Latent images may be encoded in separate additional colors of source visible image at different angles relative to each other. EFFECT: enhanced reliability of counterfeiting protection. 14 cl, 22 dwg