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117790CoxMwk_UY
- 一个基于离散余弦变换的水印算法的matlab程序（嵌入、提取）-one based on discrete cosine transform the watermark algorithm Matlab (embedding and extraction)
fft
- 由上述实验过程的图像变化可知，经过傅立叶变换和反变换及DCT离散余弦变换和反变换后，图像都发生了很大的变化，首先是经过2-D傅立叶变换后，图像数据频域出现高频数据集中，低频数据在四周的现象，然后再经过2-D傅立叶变换反变换后，图像再次恢复原始图。而2-D离散余弦变换对图像的影响也是如此。-From the above experiment, we can see the image change, after Fourier trans
DCT
- vc++实现数字图象处理4:图象处理离散余弦变换-vc++ realization of digital image processing 4: image processing discrete cosine transform
DCT
- 离散余弦变换，选择图像后选择功能项，会得到经过离散余弦变换后的图像-Discrete cosine transform, select after the selection of images, which will be after a discrete cosine transform image
DCT
- DCT，即离散余弦变换。该变换对消除光照影响效果比较好，该算法本人用过，还算好用，代码也很简单！有用的拿去把-DCT, that is, discrete cosine transform. The transformation to eliminate the effects of light is better, the algorithm I used, still useful, the code is also very si
dct_at_vlsi
- 有用_二维离散余弦变换的VLSI实现及IP软核设计-_ Useful two-dimensional discrete cosine transform and the VLSI realization of IP soft-core design
FDCT
- 快速离散余弦变换程序，运行于TI公司的DSP-Fast discrete cosine transform process, running on TI s DSP
vedio
- VHDL设计的高速图像采集模块源码，离散余弦变换，图像压缩与编码源码-VHDL design of high-speed image acquisition module source, discrete cosine transform, image compression and encoding source
DCT
- 主要介绍了去和在vc++环境下进行离散余弦变换(DCT)，可以直接使用-Introduced to and vc++ Environment discrete cosine transform (DCT), can be directly used
FreTrans.cpp
- * FFT() - 快速付立叶变换 * IFFT() - 快速付立叶反变换 * DCT() - 离散余弦变换 * WALSH() - 沃尔什－哈达玛变换 * * Fourier() - 图像的付立叶变换 * DIBDct() - 图像的离散余弦变换 * DIBWalsh() - 图像的沃尔什－哈达玛变换-* FFT ()- Fast Fourier Trans
dct
- 离散余弦变换的压缩程序MATLAB实现的，大家可以试一试！-Discrete Cosine Transform compression program MATLAB to achieve, we can try!
DCT_PCA
- 离散余弦变换，然后主成分分析进行数据降维，用于模式识别，如人脸识别，掌纹，表情，指纹等识别。-Discrete cosine transform, and then principal component analysis for data dimensionality reduction for pattern recognition, such as face recognition, palmprint, face, finger
DCT_IDCT
- 离散余弦变换及反离散余弦变换的HDL代码及测试文件。包括VHDL及Verilog版本。可用途JPEG及MEPG压缩算法。-Discrete cosine transform and inverse discrete cosine transform of the HDL code and test files. Including VHDL and Verilog versions. And MEPG can use JPEG comp
DigitalImageProcessing3
- 3.1 概述 3.2 可分离图像变换 3.3 离散傅里叶变换和性质 3.4 快速傅里叶变换 3.5 离散沃尔什变换 3.6 离散余弦变换 3.7 小波变换 -3.1 overview 3.2 detachable image transform 3.3 Discrete Fourier Transform and Fast Fourier Transform 3.4 Properties 3.5 Discre
001
- MATLAB环境下二维离散余弦变换的图像压缩-Two-dimensional discrete cosine transform image compression
InformationHide
- 基于离散余弦变换的数字水印嵌入源代码，可以直接运行-Based on the discrete cosine transform digital watermark embedded in the source code can be run directly
exp2
- MATLAB图像处理中傅里叶变换，离散余弦变换，小波变换的简单应用(simple applications of Fourier transform, discrete cosine transform, wavelet transform in MATLAB image processing,)
E2-频域增强
- 一、 计算图象的频谱函数 设计图象120*30/256*256；选用Matlab函数直接调用实现。 二、根据计算证明傅立叶变换的性质 1， 共轭对称性: F(u,v)=F*(-u,-v) ; 三、图象的频域滤波 1， 设计一个指数低通滤波器，对两图象（f1(x,y)为30*30/256*256的图象；f2(x,y)=p3-02图象）进行低通滤波，观察分析空域图象和频谱分布的变化。 四、图象变换比较
add_noise_pinyutu
- 进行纯净信号和加噪信号的时频域显示，及其包络图显示，并计算加噪信号的信噪比、互相关系数、峭度值，对信号进行离散余弦变换。(The time-frequency domain display of pure signal and noise-added signal and its envelope diagram display are carried out, and the signal-to-noise ratio, correl
fft_dct_dwht
- 用matlab实现了傅里叶变换，离散余弦变换和沃什哈达玛变化。需要下载工具性app designer(Fourier transform, discrete cosine transform and Walsh Hadamard change are realized by MATLAB. Need to download tool app Designer)