搜索资源列表
DCTLSBDWTcode
- 基于DCT,DFT,DWT等的水印算法，还有加置乱的水印算法，用于图像处理方面
DCT
- 用matlab对一张图片进行DFT变换，DCT变换,比较保留20个DCT变换系数重构的图象与原始图像的差别.-Using matlab on a picture to DFT transform, DCT transform, compared to 20 DCT transform coefficients to retain the image reconstruction of the difference between the original image.
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 which include the log of visual pr
watermark
- Matlab实现多种水印的嵌入与提取(DFT DCT等)-Matlab to achieve a variety of watermark embedding and extraction (DFT DCT, etc.)
lixanyuxuanbianhuan
- 离散预选变换 是nfs系统 离散傅里叶变换 dct dft 嵌入式系统的 望天秒版版本-Discrete transform the pre-selection system is nfs Discrete Fourier Transform dct dft embedded systems Parashorea seconds Release
OFDMsystembasedontheconversiondomainchannelestmati
- 本代码是基于OFDM系统的一种转换域估计算法，有整个OFDM系统及改进的信道估计算法仿真。包括LS,MMSE,LMMSE,DFT,及改进后的DCT算法。-The code is based on the OFDM system, the conversion of a domain estimation algorithm, the OFDM system and revamp the entire channel estimation algorithm for the simulation.
pic393
- 频域法加入数字水印的原理是首先将原始信号（语音一维信号、图像二维信号）变换到频域，常用的变换一般有DWT、DCT、DFT、WP和分形。然后，对加入了水印信息的信号进行频域反变换（IDWT、IDCT、DFT、WP），得到含有水印信息的信号。-Frequency-domain digital watermarking method by adding the principle is that first of all, the original signal (voice signal of on
DFT_and_DCT
- 对一幅图像进行DCT与DFT变换，分析变换后的高低频分量系数-DCT and DFT on an image, analysis of high frequency components of the transformed coefficient
KL_transfer
- kl变换，dct，dft变换以及信号压缩-kl transform, dct, dft transform and signal compression
dct-dft
- 对一幅图像进行DCT dft变换后的结果和运行出来的图形-Image on a DCT dft transformed results and running out of graphics
dct
- dct,dft,dht三种图像压缩变换之间的比较-DCT, dft, the dht three kinds of image compression transformation
defination-of-DCT-DFT-and-DWT
- this file contains difference between DCT,DWT and DFT
dct-dft-fft-dst
- DFT, FFT,DST, DCT and many
dct-dft--dwt
- 基于Matlab的压缩感知DCT、DWT、DFT正交基及过完备字典稀疏分解信号及重构-Matlab-based compression perception DCT, DWT, DFT orthogonal basis and complete dictionary signal sparse decomposition and reconstruction
DFT&DCT
- DFT和DCT在matlab中的一个基本实现(An implementation of DFT and DCT in matlab.)
DFT_DCT
- 对图像进行8*8DCT变换后保留前六条对角线上系数并进行反变换。 不使用MATLAB自带工具包进行DFT变换。(8*8 DCT transform of a image)
dct·dft
- 使用matlab对图像进行dct、dft变换（通过原理实现算法）(Using MATLAB to carry out DCT and DFT transform (through principle implementation algorithm))
dft_dct
- dct dft 功能实现，附实验图片lena.png(dct dft implement with lena.png)
dct
- DCT变换，用于jpeg压缩，选择DCT不选择DFT(DCT transform,For jpeg compression,DCT is not selected for DFT.)
DCT,DWT,DFT,LSB数字水印MATLAB+GUI界面
- 本课题为基于MATLAB的小波变换dwt和离散余弦dct的多方法对比数字水印系统。带GUI交互界面。有一个主界面GUI，可以调用dwt方法的子界面和dct方法的子界面。流程包括，读取宿主图像和水印图像，嵌入，多种方法的攻击（剪切，加噪，旋转等），提取，最后利用psnr峰值信噪比进行评价不同攻击下，鲁棒性的好坏。(This project is based on MATLAB wavelet transform DWT and discrete cosine DCT multi method co