搜索资源列表
myfft2
- 该程序实现二维的FFT变换，可以对图像做FFT变换，运行速度还可以。-procedures to achieve the two-dimensional FFT transform, the image can be done FFT, can also speed.
FFTmatlab
- 基于FFT的图像拼接程序，matlab实现的
mp_fft.rar
- 利用FFT快速算法来实现二维图像基于匹配追踪算法的稀疏分解。,Fast Algorithm for the use of FFT to achieve two-dimensional image matching tracking algorithm based on sparse decomposition.
DCT
- 实现图像的DCT高通、低通滤波器并与傅里叶变换做比较.有图可见，经DCT低通滤波后，图像变得很模糊。因为DCT是FFT取其实部，能量减少，因此图像变得很模糊，没有经FFT滤波后的效果好。 经DCT高通滤波后的图像： 经DCT高通滤波后，图像的低频部分被滤除掉，图像变黑，只有边缘的痕迹可见。-The DCT of image high-pass, low pass filter and compared with the Fourier transform.
useoffft
- 1）已知2N点实数序列 N=64。用一个64点的复数FFT程序，一次算出 ，并绘出频谱 。 （2）已知某序列 在单位圆上的N=64等分样点的Z变换 。用N点IFFT程序计算 ，绘出图像 。 -1) known 2N-point sequence of real numbers N = 64. With a 64-point complex FFT process, a calculated and mapped the spectrum. (2) known to a cer
pic1
- MATLAB二维图像处理程序，是个例子，可以学习一下-MATLAB two-dimensional FFT image treatment procedures, are an example, you can study what
27question
- Matlab在27种问题中的应用,很多如图像处理FFT之类的应用和常用解答都有。很全很实用-Matlab in 27 kinds of application problems, many image processing applications such as FFT and are commonly used to answer. Very wide practical
87361048MATLAB_fft
- 图像的FFT变换和DCT变换的MATLAB代码-Image FFT transform and DCT-MATLAB code
tuxiangyasuo
- 一系列展示图像压缩技术的源代码。包括有：使用块截断编码的图像压缩(Block Truncation)、基于高斯金字塔变换的图像压缩(Gaussian Pyramids)、基于离散余弦变换对图像压缩(Discrete Cosine Transform)、基于奇异值分解(SVD)的图像压缩(Singular Value Decomposition)。给出的代码还可以用于2D图像噪声消除。-Image Compression A collection of simple routines
2-yuputu
- 程序给出了0~10发音的语谱图，其中采用分帧函数对信号进行分帧处理然后在用fft算法得到频谱信息，后用灰度图像表示-Program gives the pronunciation of words from 0 to 10 spectra, which employs the signal sub-frame function and then in the sub-frame processing spectral information obtained with the fft algor
DCTafftGAOTONG
- FFT高通处理图像和DCT高通处理图像，能够通过这两个程序的对比，来了解这两种处理方式的异同之处。-FFT DCT Qualcomm Qualcomm processing images and image processing, be able to compare the two programs, to understand both the similarities and differences between treatments.
work
- 实现图像的正反傅里叶变换，并用fft实现两幅图像的幅相交换-Amplitude and phase s replacement with fft
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
Mixedthreshold_Image-Recovery
- 代码给出了基于混合门限带迭代步长的稀疏图像重构。特别地，压缩采样矩阵为抽样傅里叶变换矩阵，利用2D-FFT,大大降低了计算复杂度。-The mixedthreshold sparse image reconstruction with step is given in the package. In particular， the 2D-FFT is used to disign the sample matrix, which can reduce the computational comp
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
hua_fft
- hua fft可以同时计算频谱和功率谱，同时生成图像-hua fft can calculate the spectrum and power spectrum, while generating image
yamsheD-FFT
- 柯林斯公式的D-FFT计算 调入一图像，计算光波通过ABCD系统的衍射场振幅图像-D- FFT Computation of Collins Formula
FFT-_CZT
- fft czt的区别 用MATLAb打开 编写 有图像仿真-Fft czt u7684 u533A u522B u7528MATLAb u6253 u5F00 u7F16 u5199 u6709 u56FE u50CF u4EFF u771F
FFT
- 图像的二维傅里叶变换及变换域滤波，同态滤波(FFT and Wave filtering)
matlab
- 由两组已知的振动波形数据（excel表格形式），运用matlab生成对应的波形，利用FFT生成频谱图。要求将所有图像生成在一个图框下。包含设计文档和代码(Two groups of known vibration waveform data (excel form), using MATLAB to generate the corresponding waveform, using FFT to generate spectrum. Contains document reports and