Patent ID: 9117268
Filing Date: 2015-08-25
Classification: G06T

Abstract:
1. A method comprising: receiving a color image or video signal; transforming the color image or video signal by separating the color image or video signal into at least first data representing a first chrominance direction of the color image or video signal, the first chrominance direction comprising a red/green direction, and second data representing a second chrominance direction of the color image or video signal, the second chrominance direction comprising a blue/yellow direction, in which the first chrominance direction of the color image or video signal and the second chrominance direction of the color image or video signal comprise correlated color data, where the first data comprises a digital watermark signal embedded therein, the digital watermark signal comprising a message component and an orientation component, and the second data comprises the digital watermark signal embedded therein with a signal polarity that is inversely related to the polarity of the digital watermark signal in the first data, in which the digital watermark signal embedded in the second data comprises a signal gain that is greater than a signal gain of the digital watermark signal embedded in the first data; subtracting the second data from the first data to yield third data; using a processor or electronic processing circuitry, analyzing the third data to detect the digital watermark signal; once detected, providing information associated with the digital watermark signal.