A copy detection pattern (CDP)[1] or graphical code[2][3] is a small random or pseudo-randomdigital image which is printed on documents, labels or products for counterfeit detection. Authentication is made by scanning the printed CDP using an image scanner or mobile phone camera.[4] It is possible to store additional product-specific data into the CDP that will be decoded during the scanning process.[5] A CDP can also be inserted into a 2D barcode to facilitate smartphone authentication and to connect with traceability data.[6]