The watermark can be a protection element identified on reliable bills. According to when the banknote was manufactured, the watermark may very well be an oval or possibly a replica with the banknote’s face. With the arrival of increasingly sophisticated equipment—for instance compute

“The underlying principle of our procedure stems from the idea that microscopic attributes in a real item or a class of solutions—corresponding to the same larger product line—exhibit inherent similarities that may be applied to tell apart these items from their corresponding copyr