System and method for paper independent copy detection pattern

A computer implemented method for determining if a document is an original version comprising:

• receiving, at the computer, a captured copy detection pattern (CDP) from a document to be verified;
• obtaining, using the computer, an expected CDP;
• manipulating, using the computer, the expected CDP to create a manipulated expected CDP;
• performing, using the computer, an identification test using the captured CDP and the manipulated expected CDP to determine an identification test parameter;
• upon the identification test parameter indicating passed identification, establishing, by the computer, the type of paper and the printing process used in the document;
• based on the established paper type and printing process, selecting, by the computer, at least one authentication test from a group of authentication tests consisting of an entropy test, a wavelet domain sharpness test and a prediction error metric test;
• performing the at least one authentication test using the captured CDP and the manipulated expected CDP to determine an authentication test parameter;
• and
• using the authentication test parameter to determine if the document is an original version.