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matlab1.rar
- matlab常用函数 傅里叶变换函数、傅里叶反变换函数、低通滤波函数、sigexpand扩展序列函数,matlab function commonly used Fourier transform function, the Fourier Transform function, low-pass filter function, sigexpand extended sequence function
数字图像处理算法
- 数字图像处理:先进行傅里叶变换,然后低通滤波;最后还原。并附有余弦变换对照结果。,DIP:first FFT,then Butterworth filter,last inverse the course,also the DCT for comparition.
FFT.rar
- 快速傅里叶变换子程序,可用于频谱分析、频率域滤波,FFT subroute
wienerfilter
- 对音频进行短时傅里叶变化,维纳滤波后还原,可以滤去20db不相关噪声-Short time Fourier transform of the audio, after the reduction Wiener filter can filter out irrelevant noise 20db
fenshujiefuliye
- 基于分数阶傅里叶变换的五篇博硕士论文,分别是在数字水印中的应用两篇,图象变换中的应用一篇,滤波中的应用一篇,目标检测中的应用一篇。-Based on Fractional Fourier Transform five Theses, respectively, in the digital watermark in the application of 2, images in the application of a transformation, filtering in the
fft
- 利用傅里叶变换对图像进行降低噪声处理,而且内附有高通和低通滤波功能-Fourier transform
fft(VB)
- VB编写的快速傅里叶算法,可以稍作修改、作为一维曲线数据的频域滤波程序。内有波形数据,可供实验。-VB Fast Fourier Transform Algorithm prepared, you can make some modifications, as a one-dimensional curve data of the frequency domain filtering procedure. Within the waveform data, for experiment.
txlb
- 数字图像处理中的滤波和傅里叶压缩,包括理想低通滤波器,巴特沃茨高通滤波器,高斯带通滤波器,高斯带阻滤波器,FFT图像压缩。附原图像和处理后的图像截图。-Digital image processing in filtering and Fourier compression, including the design of an ideal low-pass filter, design Batewoci high-pass filter, bandpass filter design Gaus
homomorphic-filtering
- 利用傅里叶变换,对一副指定的图像进行同态滤波-Fourier transform, the image of a specified Homomorphic Filtering
FFt
- 其中图片说明: A: 傅里叶变换后频谱图 B:陷波函数作用后的频谱图 C:经逆变换的滤波后图像,效果不是很理想 Ifft2:为验证自己的快速傅里叶变换程序的正确性,用matlab自带逆变换程序将频谱逆变换后图形,与原图相符,说明快速傅里叶变换程序正确。-One Photo caption: A: After the Fourier transform frequency spectrum diagram B: the role of Notch function, the fre
FDomain
- 图像的一维、二维快速傅里叶变化和反变化,可对图像一般低通滤波、ButterWorth低通滤波、一般高通滤波、ButterWorth高通滤波-Image of one-dimensional, two-dimensional fast Fourier change and anti-change, the image may be a general low-pass filter, ButterWorth low pass filter, the general high-pass filter
ImageProcess
- VC++6编译环境,实现平滑,锐化,边缘增强,边缘提取(3种算法),边缘检测,中值滤波,频域变换(傅里叶分析FFT,离散余弦变换DCT)-VC++6 compiler environment, to achieve smooth, sharpen, edge enhancement, edge detection (three kinds of algorithm), edge detection, median filtering, frequency domain transform (Fo
DigitalSignalofMatlab
- 数字信号处理,包括:各种现有信号及随机信号的输入,从文件读取数据的输入,各种滤波器的实现,傅里叶变换等,傅里叶反变换等,谱分析,利用图形界面形式编写,简单且可视化强,便于理解。-Digital Signal Matlab
frequency
- 用傅里叶变换对图形进行变换,然后用高斯低通、高通滤波器对图像进行去噪-Fourier transform graphics transform, and then use Gaussian low-pass, high pass filter for image denoising
three_highpass_filters
- 用9种方法对彩色图像进行傅里叶高通滤波,有三种基本高通滤波器,三种增强型,三种加上直方图均衡的-Use nine methods doing high-pass filtering to a color image by Fourier transform:three basic filters,three enhanced,three enhanced with histogram equalization
Two-dimensionalWindowedFourierTransformForFringePa
- 在边缘检测中,利用基于滤波及相似测量原理的窗口傅里叶变换进行相移校准、边缘检测等-In the Fringe detection, we use the windowed Fourier transform method based on filtering and similarity measure ,to explore the applications such as phase shift calibration, edge detection, etc.
frftlvbo
- 使用分数阶傅里叶方法 对于线性调频信号进行滤波(Filtering using fractional Fourier)
tutorial
- 利用快速傅里叶变换滤波,空域变换的,图像灰度均衡matlab函数代码,用于学习信号处理(filter by using fast Fourier transform)
傅里叶变换的频域滤波详解源程序代码
- 傅里叶变换的频域滤波详解源程序代码 傅里叶变换的频域滤波详解源程序代码傅里叶变换的频域滤波详解源程序代码(Fu Liye transform frequency filtering detailed source code)
傅里叶谱与频域低通滤波
- 傅里叶谱与频域低通滤波 (a)从图书网站下载图4.41(a)并计算其(居中)傅里叶谱。(b)显示频谱。(c)在等式(4.8-7)中实现高斯低通滤波器。您必须能够指定结果2D函数的大小,M x N。此外,您必须能够指定高斯函数的中心位置。(d)从图书网站下载图4.41(a),并对其进行低通滤波,以复制图4.48中的结果。(Fourier Spectrum and Lowpass Filtering in Frequency Domain (a) Download Fig. 4.41(a)