FIELD: printing.
SUBSTANCE: in the structure of the reproduced colour image of the concealed security element divided into fragments the information about authenticity of the protected object is encoded. The authenticity control of printed products is carried out by extracting the element structure from the basic colour components of the scanned reproduced image by combining these fragments into a security element and decoding the information encoded in it.
EFFECT: increase in reliability of protection by modifying the colour image of the security element and placing it in the areas appropriate in colour of contrast background.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF DETERMINING AUTHENTICITY OF PRINTED PRODUCTS BY LATENT MARKER | 2014 |
|
RU2574284C1 |
| METHOD FOR ENCODING DIGITAL INFORMATION IN FORM OF MULTIDIMENSIONAL NANOBAR-CODE | 2020 |
|
RU2777708C2 |
| METHOD OF PROTECTING PRINTING PRODUCT FROM FALSIFICATION | 2010 |
|
RU2448366C2 |
| PROTECTIVE ELEMENT FOR POLYGRAPHIC PRODUCTS AND FRAUD-PROOF POLYGRAPHIC PRODUCT | 2017 |
|
RU2639807C1 |
| COMPOSITE MARK | 2009 |
|
RU2413964C1 |
| MULTILAYER PROTECTED COMPOSITION (VERSIONS) AND ARTICLE OF SUCH COMPOSITION | 2013 |
|
RU2527791C1 |
| SECURITY ELEMENT HAVING PATTERNED REGION WITH VARIABLE OPTICAL PROPERTIES | 2009 |
|
RU2527184C2 |
| METHOD FOR MANUFACTURE OF PRINTING MATTER WITH MAIN AND LATENT IMAGES | 2002 |
|
RU2222433C1 |
| METHOD OF PRODUCTION OF SECURITY FEATURE ON FLAT SUBSTRATE | 2009 |
|
RU2507076C2 |
| METHOD OF PROTECTION OF PACKING PRODUCTION FROM FALSIFICATION | 2013 |
|
RU2536670C1 |
