1. A method for determining a watermark detection threshold value in a watermark detection system, said method comprising: selecting a desired false result probability; and determining, by a processor, the watermark detection threshold value, wherein the watermark detection threshold value is determined using the selected desired false result probability given by P fp = m ! ∏ i = 1 m - 1 ⁢ ⁢ ( T + i ) where P fp is said desired false result probability, T is said watermark detection threshold value and m is a dimension of a feature vector, and wherein the watermark detection threshold value is set when a watermark detection measure is a ratio of a largest normalized correlation to a second largest normalized correlation.