In order to improve the concealment and hiding capacity of the video steganography, a new video steganography scheme is introduced and implemented in platform of VC++6. 0. In this algorithm, data are embedded in the macro blocks of I frame with maximum scene change, perceived not easily, so as to increase the concealment of the video steganography. To enlarge the hiding capacity of the secret information, a novel steganography approach called tri-way pixel-value differencing (TPVD) is used for embedding. Experimental results demonstrate that the proposed algorithm has high concealment and hiding capacity.%为了提高视频隐写的隐蔽性和隐藏量,介绍一种新的视频隐写方法并在VC++6.0下得以实现.在这种算法中,数据嵌在场景变化最大的I帧宏块中,人眼不易察觉,从而提高了视频隐写的隐蔽性.为了扩大秘密信息的隐藏量,现使用一种新的方法三路像素差值(TPVD)算法完成信息隐写.实验结果表明该方法具有较高的隐蔽性和隐藏量.
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