High capacity information embedding scheme in VQ-compressed image index map
面向索引图的大容量信息隐藏方法

Embedding capacity is one of the important factors that affect the information hiding perfomance.An improved information hiding scheme for VQ-compressed index map images based-on joint neighboring coding(JNC) technique is proposed to increase the embedding capacity.The proposed method embeds secret data by using the difference values ranging between the current VQ-compressed index and its four neighboring indices.Experimental results show that the proposed method increases the embedding capacity significant...