搜索资源列表
Computing-the-24
- 求DFT并做出离散函数xn的傅里叶变换图像 -Computing the 24-points DFTs of the two sequences that x1(n)= cos(nπ/6) and x2(n)= cos(nπ/4) using a single 24-point DFT by Matlab
pinpu
- 计算图想的傅里叶变换并显示其频谱,本设计中显示了四种图像的频谱,供大家学习和参考,比较每一种频谱的不同!-Map to calculate and display the Fourier transform of the spectrum, the design spectrum shows four images for all to study and reference, compare the different spectrum of each!
central-projection
- 通过极坐标变换获得图像的中心投影曲线,然后利用傅里叶变换获得图像的不变特征,从而实现对发生形变的物体的识别。-Polar coordinates to obtain the image through the center of projection curve, and then Fourier transform to obtain images of the same features, enabling the identification of objects deformation
Wavelet-Analysis
- 小波分析是建立在泛函分析、调和分析、数值分析、逼近论和傅里叶分析等的基础上发展起来的新的时频分析方法。与经典的傅里叶分析相比较,小波变换是空间(时间)和频率的局部变换,因而能有效地从信号中提取信息,因此小波分析有着许多显著的优点。小波变换是空间(时间)和频率的局部变换,因而能有效地从信号中提取信息。通过伸缩和平移等运算功能可对函数或信号进行多尺度的细化分析,解决了Fourier变换不能解决的许多困难问题。 小波分析是时间—尺度分析和多分辨分析的一种新技术,它在信号分析、语音合成、图像识别、计
ImageChange
- 图像处理的java程序,可以对图像进行傅里叶变换,锐化,反转,霍夫曼编码,像素颜色值量化,获取像素表格等-Java image processing program, you can Fourier transform the image, sharpen, invert, Huffman coding, pixel color values to quantify, such as access to pixel form
Pseudo-Polar
- 关于伪极坐标的傅里叶变换,更好的识别大尺度图像-On the pseudo-polar Fourier transform, better for large-scale image
fourier_transfer
- 实现图像的傅里叶高通、低通滤波.经Fourier变换后的图像,中间部分是低频部分,外边是图像的高频部分。经过低通滤波后,图像中的高频成分被滤除掉,只留下低频成分,图像的边缘部分变得比较模糊了-useful for image Fourier high-pass, low pass filter
fft
- 进行傅里叶变换的java代码,其中有三个java文件,Signal中Signal类存放了信号,FFT1D进行一维傅里叶变换,ToolboxFourier进行了三维傅里叶变换。图像处理的可以看下。-Fourier transform of the java code, which has three java files, Signal Signal class stored in the signal, FFT1D for one-dimensional Fourier transform, T
fuliyebianhuan
- 实现图片频率域的傅里叶变换,为图像分类,识别等提供一定的基础-Achieve the frequency domain Fourier transform images for image classification, identification, etc. to provide a foundation
FreTrans
- 实现bmp格式图像的打开与显示,对图像进行傅里叶变换和离散余弦变换,并可以对变换后的图像进行保存。-To achieve Bmp format image to open and display the image Fourier transform and discrete cosine transform, and save the transformed image.
fuliyebianhuan
- visual+c数字图像处理典型算法及实现书中的傅里叶变换代码-visual c++ flourier transform
Polar-Fourier-Transform
- 基于MATLAB实现了极坐标下的傅里叶变换,对一个给定 n×n 的二维信号,其计算复杂度等价于笛卡尔坐标下的2D-FFT,可广泛应用于图像处理和分析。-A fast high accuracy Polar FFT algorithm is given in the software package written in MATLAB. For a given 2D signal of size n×n, the algorihtm s complexity is just like in a C
FRETRANS
- 对图像进行傅里叶变换的源代码,可以直接应用-Fourier transform of the source code can be applied directly on the image
Ffourirerdesco
- 对于图像做傅里叶变换,并且对于形状状的二值图像做傅里叶描述子用来图像检索 -For the image Fourier transform, Fourier descr iptors used to image retrieval and for the binary image of the shape like
Matlab-fourier
- MATLAB 的傅里叶变换的一些介绍 1. 离散傅立叶变换的 Matlab实现 2. 离散余弦变换的 Matlab 实现 3. 图像小波变换的 Matlab 实现函数-The MATLAB Fourier transform some introduction. Discrete Fourier Transform Matlab. Discrete Cosine Transform Matlab achieve wavelet transform Matlab implement f
untitled
- 将正弦函数取样后与自生产图像叠加,将叠加后的图像做傅里叶变换,得到频谱图像-Sampling the sine function with self-production image overlay, superimposed images to do Fourier transform to obtain the spectrum image
LTM1
- 菲涅尔衍射的S-FFt计算,输入一个图像的复振幅,模拟复振幅的傅里叶变换的衍射-Fresnel diffraction S-FFT calculation, enter the complex amplitude of the image, the the analog complex amplitude of the Fourier transform of the diffraction
imrotate
- 使用双线性插值的图像旋转,和本站的其余旋转不同,我的旋转不会使图像缺角,好处就是旋转后他的傅里叶变换的频域图也旋转同样的角度,同样可以用来处理矩阵,来做滤波器,我在做方向滤波器,有兴趣要的可以m我。-Using bilinear interpolation, image rotation, and the rest of the rotation is the rotation does not make the image Cutaway, the advantage is that the
fastFFT
- 本程序建立在快速傅里叶变化的基础上,通过将图像快速傅里叶变换,完成修复。-This procedure based on fast Fourier change, through the image fast Fourier transform, to complete the repair.
fft2
- 本程序建立在快速傅里叶变化的基础上,通过将二维图像快速傅里叶变换,完成修复。-This procedure based on fast Fourier change, through the image fast Fourier transform, to complete the repair.