METHOD FOR CHECKING THE AUTHENTICITY OF A PRINTED PRODUCT AND DATA PROCESSING TERMINAL Russian patent published in 2021 - IPC G07D7/00 

FIELD: polygraphy.

SUBSTANCE: method of verifying the authenticity of the printed product includes photographing the printed product in order to obtain a photographic image of the printed product; obtaining reference data of the printed product containing a reference image of the printed product; determination of the test noise parameter from the photographic image of the printed product; determination of the reference noise parameter from the reference image; comparison of the test noise parameter of the photographic image of the printed product with the reference noise parameter of the reference image; and determining the authenticity of the printed product based on the comparison result. Determining the authenticity of a printed product from a comparison result may include checking whether the reference noise level in the reference image exceeds the test noise level in the photographic image of the printed product by a predetermined value based on the reference noise parameter of the reference image and the test noise parameter of the printed product.

EFFECT: increased protection of printed products.

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