METHOD FOR DETECTING (RECOGNIZING) THE FACT OF PRESENTING A DIGITAL COPY OF A DOCUMENT IN THE FORM OF A SCREEN CAPTURE

The present disclosure relates to computer technology for document security and authentication. Embodiments increase the accuracy and reliability of detecting (recognizing) the fact that a digital copy of a document has been presented in the form of a screen capture. An input image of a document, with known boundaries and internal structure, is received. Independent analysis of the specified areas of the document image is performed for certain anomalies that may occur from screen capture. When at least one of the anomalies is detected, the input image may be determined to be a digital copy instead of a physical document. The anomalies may be divided by the type of analyzed areas: analysis of the entire image of the document inside the localized boundaries; analysis of the image of the document boundaries; and/or a document area selected in accordance with the document's known structure.