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Description: fft源代码，在delphi环境下开发的。没有密码，随意下。-FFT source code, developed in Delphi. No password, you can use it freely.
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Size: 24576 |
Author: wwz |
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Description: This document introduces the techniques of fast Fourier transform and gives a source code in C for computing 2D FFT on image data.
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Size: 30720 |
Author: 冰城 |
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Description: 基2基4的2d、3d的fft快速算法，代码写的很规范，效率很高。-Radix-2-4 of the 2d, 3d of fft fast algorithm, code written in a very standardized, high efficiency.
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Size: 61440 |
Author: 张强 |
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Description: 采用FFT和IFFT的快速卷积的C程序实现源代码。-FFT and IFFT fast convolution C program source code.
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Size: 2048 |
Author: minytian |
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Description: 二维情况下实现快速傅立叶变换，利用一维情况下的FFT实现-under 2D of the fast Fourier transform, using a dimension of the FFT
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Size: 2048 |
Author: 江边漫步 |
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Description: 由上述实验过程的图像变化可知，经过傅立叶变换和反变换及DCT离散余弦变换和反变换后，图像都发生了很大的变化，首先是经过2-D傅立叶变换后，图像数据频域出现高频数据集中，低频数据在四周的现象，然后再经过2-D傅立叶变换反变换后，图像再次恢复原始图。而2-D离散余弦变换对图像的影响也是如此。-From the above experiment, we can see the image change, after Fourier transform and inverse transform and DCT discrete cosine transform and inverse transform, the images have changed a lot, first of all, is a 2-D Fourier transform, the image data emergence of high-frequency frequency-domain data, low-frequency data in the four weeks of the phenomenon, and then after a 2-D Fourier transform inverse transform, the image again to restore the original map. And 2-D discrete cosine transform on the impact of images is also true.
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Size: 475136 |
Author: |
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Description: 2维fft程序，包括fortran和c语言-2-D fft procedures, including the fortran and c language
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Size: 61440 |
Author: muyou |
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Description: implement 1D and 2D FFT and Inverse 2D FFT ,obtain the power spectrum from a set of FFT coefficients and achieve the Butterworth Lowpass Filter
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Size: 2048 |
Author: lu jie |
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Description: 1维和2维快速傅里叶变换，网上广为流传的英文版本-1-D and 2-D Fast Fourier Transform， Perform a 2D FFT inplace given a complex 2D array
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Size: 1024 |
Author: yang xulei |
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Description: A good resource for 2D FFT and DCT
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Size: 29696 |
Author: slaco |
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Description: 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 FFT package so that it can be applied to a number of follow-up experiment. This process needs to be done is to factor the function (-1) ^ (x+ y) multiplied by the input image to achieve the center of filter change, and also requires a real matrix multiplied by a complex matrix by calling the two images of the multiplication process to achieve multiplication of the corresponding elements, calculating the anti-Fourier transform at the same time, the result multiplied by (-1) ^ (x+ y) and check the final calculation of the Department of the spectrum in fact. Fourier transform experiment used the basic formula, we can experiment more profound understanding of the basis of frequency domain filtering.
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Size: 142336 |
Author: jhm |
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Description: 基于fft的2d旋转
FFT-based 2D
convolution-FFT-based 2D
convolution
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Size: 323584 |
Author: xiangxingbin |
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Description: 二维快速傅里叶变换及其逆变换，用于图像处理等领域-two dimensional fast fourier transform and its inverse fast fourier transform
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Size: 196608 |
Author: zhang bo |
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Description: mathlab for image processing 2D, DFT, FFT etc.
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Size: 25600 |
Author: Canggih Adiyasa |
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Description: This is the processing of images to be converted into 2D. from the original picture, it will be first converted to grayscale in the form, then do 2 Dimensional FFT on the image, then the image is done in 2D FFT on the result of changes filter.seluruh images displayed.
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Size: 1024 |
Author: azmi |
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Description: 包括了大规模矩阵转置 2D-FFT运算 生成FFT排序表 生成FFT数据文件-Includes a large-scale matrix transpose operation generated 2D-FFT FFT FFT sort table data file generated
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Size: 2048 |
Author: 陆琨 |
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Description: 2D FFT的源代码，图形显示变换结果，关键代码有详细注释-2D FFT source code
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Size: 1024 |
Author: 桂树 |
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Description: C实现 快速傅立叶变换FFT FFT-1D FFT-2D 源代码 第一部分-C to achieve the first part of the Fast Fourier Transform FFT FFT-1D FFT-2D source code
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Size: 19456 |
Author: wx |
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Description: FFT Fast Transformation FFT FFT FFT FFT
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Size: 430080 |
Author: Ry |
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Description: 标准C语言实现的一维和二维快速傅里叶变换代码，代码运行时不需要额外占用多余的内存空间，简单易用，具体可见代码说明。(FFT and 2 dimension FFT algorithm acommplished with ANSI C.It occupies the least memory space while running after embeded into you project.The source code is easy and brief,you can check the text file for more information.)
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Size: 3072 |
Author: 邓中洋 |
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