Printed matter, image processing apparatus, printed matter...

Details Printed matter, image processing apparatus, printed matter... Printed matter, image processing apparatus, printed matter...

H - Electricity

04

N

H04N 1/387 (2006.01) B41M 3/14 (2006.01) G06T 1/00 (2006.01)

Patent

CA 2666730

A printed matter is printed with a digital watermark overlapped in a predetermined area with a line latent image. The line latent image is visualized by laying line filters with linear stripes on a clear film.

L'invention concerne un élément imprimé avec un filigrane numérique recouvrant dans une zone prédéterminée une image latente de ligne. L'image latente de ligne est visualisée en mettant des filtres de ligne avec des bandes linéaires sur un film transparent.

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