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seektc
- steganalysis tool to detect the hidden info from the stego-image
Desktop
- stego program using the process of dct...... in matlab
new-f5-stego
- The F5 algorithm embeds message bits into randomly-chosen DCT coefficients and employs matrix embedding that minimizes the necessary number of changes to embed a message of certain length.
stego
- Advanced steganography using matlab
Jsteg
- Jsteg算法实现，Jsteg是一种基于JPEG的常用信息隐藏算法步骤如下: 首先，把掩体图像分为不重叠的8*8的子块，对每一子块进行DCT并对变换得到的DCT系数进行量化 其次，将待隐藏的信息进行加密，将加密结果嵌入到量化后值不为0，1或-1的DCT系数的最 低有效位(LSB)中，其嵌入顺序是按zigzag扫描顺序进行的。最后，用JPEG的嫡编码(包括哈夫曼编码，游程编码及DPCM)对嵌入秘密信息后的每一子块进行编码，从而得到一个含有秘密信息的JPEG stego文件。-Jsteg
RMSE
- The program calculates pnsr,rmse and corelation of an stego image.
nsf5_simulation
- cover image (grayscale JPEG image) resulting stego image that will be created relative payload in terms of bits per nonzero AC DCT coefficient seed for the random walk over the coefficients efficiency,changes