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采用小波进行图像消噪
- 数字图像在产生过程中经常会受到噪音污染。因此,对于数字图像应该对其进行去噪音处理。在传统的基于傅里叶变换的信号去噪音方法中,可以使得信号和噪音的频带重叠部分尽可能的小,这样就可以在频域通过时,不需改变滤波方法而将信号和噪音分隔开来。但是,如果信号和噪音的频域重合时,用该方法进行噪音处理的效果就比较差。-digital image in the selection process will be subject to regular noise pollution. Therefore, the
TestDft
- 普通的离散图像信号的傅里叶变换和逆变换。
fft
- 对图像进行快速傅里叶变换,在频率域去除高频信息再逆变换到空间域,完成图像栅格信息的消除。-Fast Fourier transform of the image, in the frequency domain to remove high-frequency information and the inverse transform to the spatial domain, to complete the elimination of the image grid of informati
DFT_matlab
- 是基于傅里叶变换的数字图像水印的matlab源代码-Is based on the Fourier transform of digital image watermarking matlab source code
fuliyebianhuan
- 256色图像的傅里叶变换的源代码,需要的就下吧,-256 color images of the Fourier transform of the source code, you need the next,! !
onefrft
- 一维分数福利叶变换的程序及其调用程序,可以应用于二维变换,实现图像的分数傅里叶变换。-Scores of well-being of one-dimensional Fourier transform of the procedures and called procedures, can be applied to two-dimensional transformation, to achieve the image of the fractional Fourier transform.
MATLABsheji
- matlab电子信息工程程序设计 图像的傅里叶变换及其应用-Electronic and Information Engineering program design matlab image Fourier Transform and Its Applications
restruct
- 用MATLAB实现数字图像的傅里叶变换,显示图像频谱-Digital images using MATLAB Fourier transform, display the image spectrum
filt
- 关于图像滤波的一个实例应用,教会你如何通过傅里叶变换滤除单频噪声-An example of image filtering applications, teach you how to filter out single-frequency noise in Fourier transform
fft2
- 图像的二维傅里叶变换,matlab编程,很好用。-Two-dimensional Fourier transform image, matlab programming
watermarking-algorithm
- 基于傅里叶变换的数字水印算法,实现了图像里的水印的嵌入和提取。Matlab代码。-Fourier transform-based digital watermarking algorithm to achieve the image in the watermark embedding and extraction. Matlab code.
a-dft-watermark
- 基于傅里叶变换的数字水印算法,在原始图像的傅里叶变换域中对称的嵌入数字水印信息-Fourier transform-based digital watermarking algorithm, the original image of the Fourier transform domain, the embedded digital watermark information symmetry
fuliye
- matlab 傅里叶变换 图像的傅里叶变换,利用快速傅里叶进行图像的频率分析然后画出图形-Matlab Fourier transform The Fourier transform of the image and of the image by using the fast Fourier frequency analysis and then draw the graphics
计算傅里叶变换全息
- 傅里叶变换全息( Fourier transform hologram)的代码。用于数字图像水印,图像加密等技术。
FFT
- 主要实现傅里叶变换的Matlab程序,程序带有输出波形图像(The main realization of the Fourier transform Matlab procedures)
STFFTtool3
- 对非平稳信号进行分段、截取,再对处理过后的短时信号做短时傅里叶变换,分析其频谱特性,并找到各个时间节点的频率特性,以便分析不同事件段内的声音特征,一图像的形式表达出,最终达到区分不同声音的目的。(The nonstationary signals are segmented, and then the interception, the short-time signal after processing the short-time Fourier transform, the analysi
keypoint
- 对非平稳信号进行分段、截取,再对处理过后的短时信号做短时傅里叶变换,分析其频谱特性,并找到各个时间节点的频率特性,以便分析不同事件段内的声音特征,以图像的形式表达出,最终达到区分不同声音的目的。(The nonstationary signals are segmented, and then the interception, the short-time signal after processing the short-time Fourier transform, the analysi
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)
Character E in the MATLAB
- 使用matlab二元傅里叶变换全息图,字符“E”的MATLAB模拟计算全息图,字符“E”的MATLAB模拟计算全息图的再现图像(Character "E" in the MATLAB simulation of the reproduced image of the hologram)
分数阶傅里叶变换
- 一种基于分数阶理论的傅里叶变换。可以用在信号特征提取;信号去噪方向;利用二维分数阶傅里叶变换可以实现图像处理,例如图像去噪,加密操作等;FRFT压缩包:frft源程序;以及相应数据处理子函数;两个心电图振动信号可供分析;