【摘要】 提出一种新的文本保密算法,将秘密的文本信息经处理后隐藏在一幅可公开传送的普通彩色图像中,不易引起拦截者的注意。该算法将秘密信息藏到彩色图像各色彩分量的小波变换域,充分利用了图像资源,因此信息隐藏量优于同类的掩密软件,且具有良好的视觉效果。提取信息时不需要参考原图。仿真实验表明:该算法对噪声干扰及常见的图像处理技术具有较好的鲁棒性。更多还原

【Abstract】 In this paper,a novel text cryptos ys tem is proposed.The secret information is hidden into a color image,which can be publicly accessed,so the transportation of the secret information will not a ttract the attention of illegal eavesdropper.With our approach,the secret inf ormation is embedded in the wavelet domain of every chrominance component ,so t he hiding capacity is larger than the similar steganography software.The embedd ed sequence can be reliably extracted without resorting to the original image. Simulation results show that the proposed method is robust against commonly used image processing techniques.更多还原