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这是一个matlab环境下的关于图像频谱分析的源代码,内附图像。-This is a Matlab environment on the image spectrum analysis of source code, containing images.
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一个基于matlab的图像处理小例子,有dct压缩还原效果对比及dct和fft的频谱,A small matlab example of image processing, and to restore the effect of compression dct comparison of the fft and dct and spectrum
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1了解图像变换的意义和手段;
2熟悉离散傅里叶变换、离散余弦变换、离散小波变换的基本性质;
3熟练掌握图像变换的方法及应用;
4通过实验了解二维频谱的分布特点;
5通过本实验掌握利用MATLAB编程实现数字图像的变换。
-An understanding of the meaning and image transformation means 2 familiar with the discrete Fourier transform, discrete cosine t
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The radially averaged power spectrum (RAPS) is the direction-independent mean spectrum, i.e. the average of all possible directional power spectra. This function computes and plots the RAPS of an input image. The function was written to produce the R
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二维傅里叶变换,对图像进行二维傅里叶变换处理-Two-Dimensional Fast Fourier Transform
The purpose of this project is to develop a 2-D FFT program "package" that will be used
in several other projects that follow. Your implementation must have the capabilitie
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2PSK调制器的设计,在通信原理教学中应用MATLAB语言,可借助MATLAB方便的绘图性,把信号的频谱用MATLAB图形,很好地展现给学生,这样学生可以通过形象的图形来掌握抽象的理论,从而更好地理解原理.-2PSK modulator design, principles of teaching in the communications applications MATLAB language, can take advantage of MATLAB graphics and conven
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matlab实现的fft2程序,可用于图像频谱分析-matlab implementation of fft2 procedures, can be used for image spectral analysis
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产生右图所示亮块图像 f1(x,y)(128×128大小,暗处=0,亮处=255),对其进行FFT,同屏显示原图f1和FFT(f1)的幅度谱图,若令f2(x,y)=(-1)x+y f1(x,y),重复以上过程。以及旋转45度后进行变换-Generating shown bright block image F1 (x, y) (128128 size dark = 0, light at = 255), the FFT, the same screen display Original f1 a
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数字图像的傅里叶变换包括旋转平移后的原图及其频谱图。显示用的是三维坐标-Digital image, including the Fourier transform of the image after rotation and translation spectrum Fig. Show that using a three-dimensional coordinates
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n×n子块的DTC图像变换及频谱特点。
熟悉JPEG基本系统的图像编解码方法。-n × n sub-block of the DTC and the spectrum characteristics of the image transformation. Familiar with the basic system of JPEG image codec method.
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题目:离散富立叶变换(DFT)和频谱分析.matlab实现 1信号函数h(t)= e-a*t*tsin(2πft)2编程计算的离散富立叶变换(DFT)和IDFT图像。3计算振幅谱,相位谱以及检测信号主频-Title: Discrete Fourier Transform (DFT) and spectral analysis. Matlab function to achieve a signal h (t) = ea* t* tsin (2πft) 2 programming computin
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Design frequency domain Ideal, Butterworth and Gaussian band pass filters to filter the input image. Use your own grayscale picture as the input image. The filters must be passing frequencies between radius of 30 and 120 frequency components of the
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本实验要求开发一个2-D FFT程序包,使其可以应用于后续的几个实验。这个程序需要完成的功能是用因子(-1)^(x+y)乘以输入图像以实现滤波的中心变换,并还要求用一个实矩阵乘以一个复数矩阵通过调用两个图像的乘法程序来实现对应元素的相乘,同时计算反傅立叶变换,得到的结果乘以(-1)^(x+y)并取其实部最后计算频谱。实验中用到傅立叶变换的基本公式,通过实验我们可以更加深刻的理解频域滤波的基础。-The experiment calls for the development of a 2-D F
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对图像进行傅里叶变换,观察其幅度谱和相位谱-Fourier transform of the image to observe its amplitude spectrum and phase spectrum
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用MATLAB实现数字图像的傅里叶变换,显示图像频谱-Digital images using MATLAB Fourier transform, display the image spectrum
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用MATLAB编写的图象多重分形程序,可直接计算得到多重分形谱-Image prepared using MATLAB multifractal process, can be directly calculated multifractal spectrum
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基于小波变换的扩频图象数字水印,将水印嵌入到小波中。以保证信息的安全-Spread spectrum based on wavelet transform image watermarking, the watermark is embedded into the wavelet. To ensure information security
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交换两幅图像的相位谱,利用频域滤波消除周期噪声!-Exchange of two images of the phase spectrum, using frequency domain filtering periodic noise elimination!
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一些经典的matlab程序源码有MATLAB图像处理实现螺纹识别、频谱分析加汉宁窗函数、蒙特卡洛法求椭圆面积、RBF神经网络的训练等-There are some classic matlab program source code matlab image processing to achieve a thread identification, spectrum analysis of Hanning window function, Monte Carlo method for elli
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1.被动悬挂设计simulink模型
2.对于任意一段路面谱,求出其功率谱密度与频率的分布关系,在标准路面图中画出曲线验证路面
3.积分白噪声法路面构造simulink模型
4.整车平顺性分析simulink模型
5.实际路谱案例,c级路面
6.悬架动载荷功率谱密度图像画图matlab编程(1. Simulink model for passive suspension design 2. For any section of road spectrum, the
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