The finite-time synchronization of quaternion-valued networks is investigated.The state variables and dy-namics of the nodes in networks as well as the coupling matrices are all quaternion-valued.An impulsive control pro-tocol is designed to ensure that the coupling networks synchronize to the target in a finite time,and the correspond-ing synchronization time is given as well.Finally,a numerical simulation is proposed to verify the effectiveness of the new designed control protocol,and the synchronization results are applied to the color image information hiding.
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