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signature
- 该目录包含了基于可移植的C语言的数字水印算法的代码。这些代码具有示范 性的意义，且有一定的鲁棒性。 需要安装NetPGM的程序包（用来存取pgm格式图像），然后才能在linux下面编译。 NetPGM是图像文件的输入/输出软件包。可以在网上搜索得到。我们已经对 256灰度级，512×512大小的图像进行了测试。程序编译后的调用格式如下（以encode为例）： wm_cox_e -s cox.sig -o wm_
matlab_watermark
- 本文算法是将24 位真彩图的亮度分量分块 DCT ,然后利用DCT 量化系数的奇偶特性嵌入8 位灰度水印图,并通过PN 序列加密来保证水印的 安全性。算法中,将灰度图像转换为二进制数据 流,置乱后扩频调制,隐藏在宿主DCT 系数量化值 中,提取时不需要宿主信号,实现水印信号的盲提 取。-This algorithm is 24-bit true color pictures of the luminance co
mirt_dctn
- steganography dct image algorithm. very useful for implementing dct and idct concepts in matlab-steganography dct image algorithm. very useful for implementing dct and idct concepts in matlab......
CUDA-DCT-code
- 英伟达gpu通用计算统一架构CUDA，DCT源代码，例程-Gpu NVIDIA unified architecture general-purpose computing CUDA, DCT source code, routines
watermark
- Watermark using DCT is given in these file also dual watermarking is included in this file
85-G211-532
- multiple watermarking using dct
LIP6911CORE_dct_4
- DCT Verilog source code
projectdemo
- this project demo consists of the DCT transform using image compression appllications.
DCT2
- 2 维 DCT的VHDL实现以及 测试代码 ， -2-D DCT of the VHDL implementation and test code
DCT_Qutization_watermarking
- Matlab版本代码，主要研究数字水印的DCT算法-Matlab version of the code, the main algorithm of digital watermark DCT
3
- 编程实现图像DCT高通、低通滤波器并与傅立叶变换做比较-Programming image DCT high pass, low pass filter and compared with the Fourier transform
matlab
- image watermarking using DCT CDMA -image watermarking using DCT CDMA ....
dct
- 在离散余弦变换下实现信号的稀疏分解，matlab环境下可以简单实现-realize sparse Decomposition with dct
dct-partial-code
- this is VHDL code for dct initialization
Robust-Watermarking-Based-on-DCT
- 基于DCT域的鲁棒水印，上数字图像处理课上的大作业-Robust Watermarking Based on DCT, the homework of digital image processing
corrected
- OFDM is a new scheme for data transmission with several advantageous features. In this report a survey of all existing OFDM systems are being presented. Starting with simple FFT based OFDM the other variants like DCT-OFD
DCT
- 一个基于dct变换的数字水印算法的源程序-A dct-based Digital Watermarking Algorithm source code
matlab-code
- 对数字图像处理中的离散傅里叶变换(DFT),离散余弦变换（DCT）进行了详细的分析。其中DFT包括log视觉处理，中心点移动等。DCT包括分块处理，和保留较少系数，并比较结果。-Digital image processing of the discrete Fourier transform (DFT), discrete cosine transform (DCT) for a detailed analysis. DFT whic
DCT
- 变换编码中的dct编码是一种常用的压缩编码方法，用于文本文件压缩。-Dct transform coding in the code is a common compression method, used for text file compression.
Denoising-DCT
- DCT Based Image Denoising Approach with matlab