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lisanfuliyebianhuan
- 简单方便的DFT（离散傅立叶变换）方法处理图像问题，希望对大家有用。-easy DFT (Discrete Fourier Transform) approach to image problems in the hope that useful for all.
wavelet.rar
- 二维离散小波变换的代码，用C语言实现，可用于数字信号处理、数字图像处理、地震勘探,Two-dimensional discrete wavelet transform code, using C language implementation can be used for digital signal processing, digital image processing, seismic exploration
Wavelet
- 二维离散小波变换的C++源码，可以运行，大家多多交流-Two-dimensional discrete wavelet transform of C++ source code, you can run, we communicate more
DWT
- 该代码实现了对灰度图像的离散小波变换 程序可以设定参数，实现不同级别的变换-The code implementation of the gray image of the discrete wavelet transform procedures can set parameters, achieve different levels of transformation
xiaobobianhuantux
- 小波变换是一种快速发展和比较流行的信号分析方法, 其在图像处理中有非常重要的应用, 包括图像压缩, 图像去噪, 图像融合, 图像分解, 图像增强等。小波分析是傅立叶分析思想方法的发展与延拓。除了连续小波 (CWT)、离散小波(DWT), 还有小波包avelet Packet)和多维小波。本文主要介绍小波变换的发展及其在图像处理、的应用-Wavelet transform is a fast-growing and more popular method of signal analysis,
discretization
- 介绍数据挖掘里的离散化算法，对连续属性进行离散化的数据预处理-discretizaion for naive bayes method in the data mining
Convex_Hull_Algorithm
- 由一堆离散点，自动生成它的最小外包多边形，及凸壳。-By a bunch of discrete points, it is automatically generated out of the smallest polygon, and the Convex Hull.
DWT2
- 对源图像进行二维离散小波变换，使其适用于数字水印等进行加密处理-Two-dimensional images of the source of discrete wavelet transform to make it applicable to the digital watermark is encrypted, etc.
Fuliye1
- 读入.pgm格式的灰度图文件，进行二维离散傅里叶变换并且显示-Read. Pgm format, grayscale documents, conducting two-dimensional discrete Fourier transform and show
DWTwavelet
- 二维离散小波变换程序，对于初学者有很大帮助-Two-dimensional discrete wavelet transform procedures
dwt-wavelet
- 二维离散小波变换，遥感图像处理，希望能够帮助大家。-Discrete wavelet transform, remote sensing image processing, want to help you.
lsdqxzxsf
- 提出一种曲线算法，提高曲线计算效率，解决工程应用中离散点曲线造型问题。-A curve algorithm to improve computational efficiency curve, to solve engineering problems in the discrete point curve modeling.
高斯噪声去噪
- 一个小程序。向图像中添加高斯噪声，在使用离散小波原理，进行二阶去噪。(The Gauss noise is added to the image, and the two-level denoising is performed using the discrete wavelet principle.)
离散滤波
- 在原始图像中加入高斯噪声，然后进行离散滤波实验仿真(The Gauss noise is added, and then the discrete filter is simulated)
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 利用现有的离散傅立叶变换、离散余弦变换、Walsh-Had
test1
- 对Lena图像进行傅立叶、离散余弦、哈达玛变换。在频域，对比他们的变换后系数矩阵的频谱情况，进一步，通过逆变换观察不同变换下的图像重建质量情况。(Fourier transform, discrete cosine transform and Hadamard transform are applied to Lena image. In the frequency domain, the spectrum of their transformed coefficient matrix is c
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, correlation coefficient and kurtosis
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
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)