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In mathematics, the discrete-time Fourier transform (DTFT) is one of the specific forms of Fourier analysis. As such, it transforms one function into another, which is called the frequency domain representation, or simply the "DTFT", of the original
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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
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通信原理实验代码，AM信号，单边带信号，双边带信号的产生以及傅里叶变换-Communication Theory test code, AM signal, single-sideband signal, as well as double-sideband signal generation Fourier transform
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matlab代码，数字图像矩阵数据的显示及其傅立叶变换，二维离散余弦变换的图像压缩，采用灰度变换的方法增强图像的对比度，直方图均匀化，模拟图像受高斯白噪声和椒盐噪声的影响，采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波-matlab code, digital image data display matrix and its Fourier transform, two-dimensional discrete cosine transform image compressio
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FRFT时频变换代码（参考算法：H.M. Ozaktas, M.A. Kutay, and G. Bozdagi.Digital computation of the fractional Fourier transform.IEEE Trans. Sig. Proc., 44:2141--2150, 1996.）-FRFT transform time-frequency code (reference algorithm: HM Ozaktas, MA Kutay, and G. Bozda
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基于Matlab的典型图像增强算法的源码
程序代码说明
P0301：数字图像矩阵数据的显示及其傅立叶变换
P0302：二维离散余弦变换的图像压缩
P0303：采用灰度变换的方法增强图像的对比度
P0304：直方图均匀化
P0305：模拟图像受高斯白噪声和椒盐噪声的影响
P0306：采用二维中值滤波函数medfilt2对受椒盐噪声干扰的图像滤波
P0307：采用MATLAB中的函数filter2对受噪声干扰的图像进行均值滤波
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利用傅里叶变换，在频域上对两幅图像配准，是一种比较配准的新方法，但是对弹性配准的效果不是很好 需要进一步的研究。-Registers two images (2-D rigid translation) within a fraction of a pixel specified by the user. Instead of computing a zero-padded FFT (fast Fourier transform), this code uses selective upsamp
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this source code based on steganography and developed in matlab. in steganography we can hide any data like images in another image.
this method based on discrite fourier transform method.
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两篇英语文本倾斜校正论文。
FT_Deskew为论文的Matlab实现，可用附带的两个图片测试，效果较好。-Text De-skewing Using Fourier Transform and Matlab code.
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sample code to show how to perform digital filtering using fast fourier transform
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this about DTFT.DTFT s matlab code and it is for Discrete time fourier transform.-this is about DTFT.DTFT s matlab code and it is for Discrete time fourier transform.
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This program is open source code of fast Fourier transform in matlab.
Where y is the input argument and p is the normalized size of the input. Let
y = [1 2 3 4 ]
x= length(y)
m= log2(x)
p= ceil(m)
To call the function use
ft2(y,p
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离散的分数阶傅里叶变换MATLAB程度代码，可用于数字水印研究及图像处理、-Discrete fractional Fourier transform of the degree of MATLAB code can be used for digital watermarking and image processing,
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MATLAB医学影像处理实验(内含14个原代码及教学的说明)
(1)Plot a sine function using MATLAB, and write the data into a file
(2)Read data from a file, plot a SINC function, and append the result back to the same file
(3)Plot a Gaussian distribution using MATLAB
(4)Fo
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fast fourier transform (FFT) code in MatLab
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分别给出了饼图的绘制、阶梯图、枝干图、罗盘图、轮廓图、交互式图形、变换的傅立叶函数曲线、劳伦兹非线形方程的无序活动、填充图、条形图和阶梯形图matlab的样例代码，简单实用。-Drawing pie charts are given respectively, ladder diagram, branches map, compass map, contour maps, interactive graphics, the Fourier transform function curves, L
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傅里叶变换，FSERIES 返回傅里叶系列系数，代码中对参数有详尽的解释说明，方便看懂-Fourier transform, FSERIES back Fourier series coefficients, the code of the parameters detailed explanations, easy read
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2D傅立叶变换，上课的小作业，包含报告和源码-2D Fourier transform, the small school assignments, reports and source code that contains
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This contain discrete fourier transform code and inverse discrete fourier transform coded in matlab and also contain dfs and idfs
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可以计算非线性薛定愕方程的exe程序,代码是matlab的- This program is a simple introduction to the Fast Fourier Transform
Analytic and numerical solution are take into account.
The code(MATLAB) can be used to simulate Nonlinear Schrodinger Equation (NLSE)
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