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Description: 二维FFT(快速傅立叶变换)变换源代码,可编译通过并能正常运行.-2D FFT (Fast Fourier Transform) transform source code, compile and can operate normally.
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Size: 295840 |
Author: 黄钦 |
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Description: 利用蝶形算法类似于FFT，利用先行再列实现二维DCT。速度很快。包含反DCT的代码。-similar to the use of butterfly FFT algorithm, the first re-use of 2D DCT out. Very fast. Contain anti - DCT code.
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Size: 2264 |
Author: yaoli |
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Description: Image Compression
A collection of simple routines for image compression using different techniques.
图象压缩的不同方法
BTCODE:
Image compression Using Block Truncation Coding.
PYRAMID:
Image compression based on Gaussian Pyramids.
DCTCOMPR:
Image compression based on Discrete Cosine Transform.
IMCOMPR:
Image compression based on Singular Value Decomposition.
The given codes can be also used in 2D noise suppression.
Notes:
The function \"conv2fft\" performs a 2D FFT-based convolution.
Type \"help conv2fft\" on Matlab command window for more informations.
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Size: 10228 |
Author: 王云云 |
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Description: 一个二维Fourier变换的程序 适用于256*256的点阵，用于应付一般的数字图像处理需要-a two-dimensional Fourier transform procedures apply to the 256* 256 dot matrix, used to meet the general needs of digital image processing
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Size: 7168 |
Author: 李子刚 |
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Description: 图象FFT——1D变换，快速变换针对2D图象-FFT image-- Transform 1D, 2D against rapidly changing images
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Size: 1024 |
Author: 刘曦 |
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Description:
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Size: 3072 |
Author: 彭怀敏 |
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Description: 将一副256*256的灰度图像分成8*8的小图像块，然后进行dct变换-Will be a 256* 256 gray image is divided into 8* 8 small image blocks, and then proceed to DCT transform
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Size: 389120 |
Author: 笨笨 |
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Description: - conv2fft.m ---> M-file for 2D FFT-based convolution
- convfft.m ---> M-file for 1D FFT-based convolution-- conv2fft.m ---> M-file for 2D FFT-based convolution
- convfft.m ---> M-file for 1D FFT-based convolution
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Size: 3072 |
Author: 邢砚 |
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Description: 图像的傅立叶及反变换演示程序，包括了打开图像，现实幅度谱等功能-code for 2D image FFT and IFFT transforms.
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Size: 88064 |
Author: Simon |
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Description: 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 for image compression using different techniques.
BTCODE:
Image compression Using Block Truncation Coding.
PYRAMID:
Image compression based on Gaussian Pyramids.
DCTCOMPR:
Image compression based on Discrete Cosine Transform.
IMCOMPR:
Image compression based on Singular Value Decomposition.
The given codes can be also used in 2D noise suppression.
Notes:
The function "conv2fft" performs a 2D FFT-based convolution.
Type "help conv2fft" on Matlab command window for more informations.
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Size: 56320 |
Author: 依米 |
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Description: 2维傅立叶变换方法用于分析干涉条纹，相移计算。-2D FFT for fringe annalisys
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Size: 70656 |
Author: Gwe |
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Description: Source code of forward and backward 2D FFT with low or high frequency filter (run with pcx-file as parameter)
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Size: 32768 |
Author: eakalinin |
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Description: Matlab动力系统和时间序列分析工具箱:这个工具箱用来分析动力系统和时间序列，它可以定制为：常微分方程、随机微分方程。所有分析的方法被封装在工具箱中，你可以通过命令行或GUI来调用。包含的功能：
ODE常微分方程, SDE随机微分方程和map integration 分析时间序列，过滤、归一化/均衡化、直方图、2D直方图、ACF, MAI, FFT,最大lyapunov指数计算、模式识别。
动力系统分析：创建Poincare截面、分岔图、计算lyapunov指数。-The kit used to analyze the power systems and time series, it can be customized as: ordinary differential equations, stochastic differential equations. All analysis methods are encapsulated in the toolbox, you can call the command line or GUI. Includes features: ODE ordinary differential equation, SDE Stochastic Differential Equations and map integration analysis of time series, filtering, normalization/equalization, histogram, 2D histogram, ACF, MAI, FFT, the maximum lyapunov index, pattern recognition . Power System Analysis: Creating Poincare section, bifurcation diagrams, calculations lyapunov index.
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Size: 381952 |
Author: 朱凤宇 |
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Description: 2d FFT with DX10 (fastest fft algorithm)-2d FFT with DX10 (fastest fft algorithm)
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Size: 6674432 |
Author: serkant |
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Description: 基于二维2D的FFT卷积分，提供给大家参考，共同学习。-2D FFT-based two-dimensional volume integral, provided for your reference, learning together.
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Size: 2048 |
Author: hh |
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Description: 基于labwindowS cvi软件的，进行二维数组FFT运算-labwindows cvi 2d FFT
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Size: 7168 |
Author: gzz |
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Description: 2010年ICIP最新文章关于图像复原，提出了2D NHA算法，实验证明了该算法的优越性能。-In this study, we develop a technique for image restoration
The proposed method is based on the 2D non-harmonic analy-
sis (2D NHA). The 2D NHA algorithm assigns an initial value
by using the spectrum of the maximum amplitude, which is
obtained by FFT. This value is converged to a global min-
imum by using the steepest descent method and Newton’s
method. And, an image recovery method was proposed by
improving the cost function of 2D NHA as excluding the
missing region. To verify the effi cacy of the proposed method
simulation is carried out using a damaged image. The simula-
tion results show that a high-quality image is obtained when
the missing region is consist of periodicity. In both the ob-
jective and the subjective comparisons, the qualities of the
images recovered using the proposed method are the most fa-
vorable in all cases.
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Size: 140288 |
Author: kongsuhong |
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Description: 2D FFT in matlab. inputs are original data and block size. ex) block size = [8 8]
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Size: 231424 |
Author: nishina |
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Description: 2D FFT and 2D IFFT in matlab. inputs are original data and block size. ex) block size = [8 8]
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Size: 231424 |
Author: nishina |
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Description: 构造一幅黑白二值图像，在128×128的黑色背景中心产生一个4×4的白色方块，利用1DFFT子程序实现2D傅里叶变换.-Construction of a black and white two value image, in a 128 x128black background center generates a 4x 4white box, use 1DFFT to achieve2D subroutine fft
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Size: 1024 |
Author: 韦蕴珊 |
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