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中文摘要：
提出了一种改进的二值图像隐写算法。该算法首先将图像分块，计算图像块特征值，针对选择视觉效果好的图像块利用Tseng算法嵌入信息。嵌入过程中，对图像块内存在的多个可选嵌入位置利用“像素翻转标准”来确定最佳嵌入位置，使得嵌入信息后图像能保持较好的视觉效果。实验结果说明了本文的算法是将视觉效果和嵌入容量很好结合的一种隐写算法。
英文摘要：
The paper proposed an improved data hiding algorithm for binary images. The algorithm partitioned image into blocks firstly, and calculated the eigenvalue for each blocks, then selected the fine visual effect blocks to embed data using the Tseng embedding algorithm. In the process of embedding, ＂Pixel Flippability Criterion＂ was used to ensure the best embedding position which existed several embedding positions in the block, thus made the image preserve better visual effect after embedding data. Experiments show that the algorithm is a good steganographic algorithm which combined vision effect and embed capacity.
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