搜索资源列表
FFT2
- 实现快速傅立叶变换算法,provides test framwork for FFT testing
CGHwatermarkmatlabcode
- 关于半色调编码计算全息图的信息隐藏Matlab程序的说明： 算法实现主程序为CGHwatermark； 位相恢复函数为phaseSL； 用计算全息记录已知振幅和位相的复波前函数为Hologen； 半色调编码函数为AMhalftone； 嵌入信息的提取直接调用Matlab自带的FFT2函数； 主程序的函数调用关系如下 读入宿主信息和水印信息-----------phaseSL--->Hologen--->AMhalftone(
FFT2
- 用matlab实现FFT，不是用matlab自带的函数fft，而是自己重新编程-Matlab implementation with FFT, not the native function with matlab fft, but his re-programming
fft2
- ADC转换器的 fft测试，包括几个MATLAB程序-ADC converter fft test, including several MATLAB programs
FFT2IFFT2
- FFT2 & IFFT2\Untitle.rar with matlab
chap04
- matlab实例clearN=100f=zeros(50,50) f(15:35,23:28)=1 figure(1)imshow(f, notruesize )F=fft2(f,N,N) F2=fftshift(abs(F)) figure(2)x=1:N y=1:N mesh(x,y,F2(x,y)) colormap(gray) colorbar-matlab
FFT_IFFT
- 自己编的程序，实现快速傅里叶变化，结果和matlab自带的fft2一样。-Own series of programs, fast Fourier transform, results and matlab native fft2 the same.
BPF_Image
- This function is a very simple application of FFT2 for an image to simulate the effect of bandpass filter with two cut off frequencies. One can easily modify the programme to do the processes for different images, and even implement highpass
matlab-work
- f=zeros(30,30) f(5:24,13:17)=1 imshow(f, notruesize ) F=fft2(f,256,256) F2=fftshift(F) figure,imshow(log(abs(F2)),[-1 5], notruesize ) -f=zeros(30,30) f(5:24,13:17)=1 imshow(f, notruesize ) F=fft2(f,256,256) F2=fftshift
analyse_fringes
- reconstruct image with an input image with interference fringe (use fft2, ifft2, angle)
fft2
- 图像的二维傅里叶变换，matlab编程，很好用。-Two-dimensional Fourier transform image, matlab programming
FFT2
- fft2 and dct algorithm in image compression JPEG
New-Folder
- fft2-antropy-convolve -covariance
myDFT
- This function is equivalent to matlab fft2 function, but without using for loops, instead this function is implemented using matrix multiplication.
wp_fft2
- 扩充后的fft2源代码。经典蝴蝶算法。数字图像处理，应用于图像。-Expanded the source fft2 code. Butterfly algorithm
fft2
- 能够实现基二的fft的实现，很好用，亲自试用-Base fft implementation, useful, and personally trial
fft2
- 快速傅立叶变换（时域抽取基二fft）matlab程序源码-Fast Fourier Transform (time-domain samples di fft) matlab program source code
PasaBajosIdeal.m
- Low pass filter for images, to filter the image its necessary to use a Laplace transform using the fft2 command.-Low pass filter for images, to filter the image its necessary to use a Laplace transform using the fft2 command.
DFT-FFT2
- 快速傅里叶变 (Fast Fourier Tranformation，FFT)是将一个大点数N的DFT分解为若干小点的D F T的组合。将用运算工作量明显降低， 从而大大提高离散傅里叶变换(D F T) 的计算速度。因各个科学技术领域广泛的使用了FFT 技术它大大推动了信号处理技术的进步， 现已成为数字信号处理强有力的工具-Fast Fourier Transform (Fast Fourier Tranformation, FFT) is a large number N of DFT i
Report
- fft2 without using fft2 code by matlab.