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a main soure code about radar with FEM
- the code use the FEM to calculate the radar wave.and the result is a 2D graph.however,because of the secret,the other code cann't be posted,but this is the main code.
JSteg
- JSteg隐写技术matlab实现代码--基本思想:用秘密信息比特直接替换JPEG图像中量化后DCT系数的最低比特位,但若量化后DCT系数为0或者1,则不进行处理。(DCT系数的LSB嵌入) -JSteg steganography matlab code- the basic idea: direct replacement with the secret information bits JPEG image quantized DCT coefficients in the leas
dcthide
- dct隐写技术matlab实现资料。算法原理:通过在一个图像块中调整两个DCT系数的相对大小,隐藏秘密信息。 将载体图像分为8×8的块,做二维DCT变换 用来表示选中的两个系数的坐标对于第i bit秘密信息 if(要隐藏信息‘1’) make else make 逆DCT变换,还原图像 -dct steganography matlab implementation information. Algorithm principle: an image bl
QR-code-security
- 采用数字水印技术实现在公开信息中加入秘密的隐私信息,从而实现隐私信息的隐藏保护。-The use of digital watermarking Technology to join the secret private information in public information in order to achieve the protection of privacy of information hiding.