METHOD OF SEARCHING FOR DIGITAL IMAGE CONTAINING DIGITAL WATERMARK Russian patent published in 2015 - IPC G06K9/62 

Abstract RU 2559773 C2

FIELD: physics, computer engineering.

SUBSTANCE: invention relates to a method of searching for digital images containing a digital watermark. The method of searching for a digital image containing a digital watermark includes preliminary processing of a digital image, classifying the image into one of two classes, selecting fragments of the digital image containing recurrent elements, converting said fragments from a pixel map of the RGB colour scheme into a pixel map of a colour scheme expressed through the wavelength of the continuous spectrum in the visible optical range, analysing the selected image fragments, forming an attribute space for each image fragment; further, from the calculated values, generating an eigen image vector containing statistical image characteristics, presented through the wavelength of the continuous spectrum in the visible optical range, and associating the digital image with one of the two classes: a digital image containing a digital watermark and a digital image without a digital watermark.

EFFECT: enabling operation of the method in conditions without prior information on the law of embedding a digital watermark, as well as a low probability of false alarm.

2 dwg

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RU 2 559 773 C2

Authors

Ivanov Vladimir Alekseevich

Kirjukhin Dmitrij Aleksandrovich

Radaev Sergej Vladimirovich

Pronkin Aleksej Aleksandrovich

Romanishin Gennadij Valer'Evich

Bitkov Evgenij Nikolaevich

Ivanov Ivan Vladimirovich

Dates

2015-08-10Published

2013-12-11Filed