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PSNR
This is a MATLAB code used to calculate the PSNR of a function.
- 2018-01-29 14:06:58下载
- 积分:1
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应用Matlab对语音信号进行频谱分析及滤波完整代码
用MATLAB编程实现实现滤波,与数字信号处理相关(Implementing filtering)
- 2020-06-24 18:00:02下载
- 积分:1
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wavelet1111111111111
计算小波时间熵的源程序,内容详尽,调试正确,非常有用。计算小波时间熵的源程序,内容详尽,调试正确,非常有用。(Calculate the entropy of the source wavelet time, detailed, debugging is correct, very useful. Calculate the entropy of the source wavelet time, detailed, debugging is correct, very useful.)
- 2011-07-06 09:42:30下载
- 积分:1
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二维S变换
能够实现二维S变换的MATLAB程序,与Stockwell的经典程序不同(the code which can implements the 2D S-transform)
- 2018-05-09 14:32:07下载
- 积分:1
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Image-fusion-
实现了基于小波变化的图像融合,并将融合结果显示出来(It realize the Image fusion based on wavelet transform and show the tesult)
- 2011-04-30 10:56:39下载
- 积分:1
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小波变换
图像小波变换,小波变换(wavelet transform,WT)是一种新的变换分析方法,它继承和发展了短时傅立叶变换局部化的思想,同时又克服了窗口大小不随频率变化等缺点,能够提供一个随频率改变的“时间-频率”窗口,是进行信号时频分析和处理的理想工具。它的主要特点是通过变换能够充分突出问题某些方面的特征,能对时间(空间)频率的局部化分析,通过伸缩平移运算对信号(函数)逐步进行多尺度细化,最终达到高频处时间细分,低频处频率细分,能自动适应时频信号分析的要求,从而可聚焦到信号的任意细节,解决了Fourier变换的困难问题,成为继Fourier变换以来在科学方法上的重大突破。(Image Wavelet Transform)
- 2020-06-18 04:40:01下载
- 积分:1
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Ship-detection
复杂杂波背景下,海面红外图像中舰船目标检测的关键是如何降低虚警、检测出真正的
目标。为了实现这个目标,首先利用Haar小波函数进行小波变换,对图像进行预处理;然后进行恒
虚警检测(CFAR);第三步采用行程法对检测的目标进行标记;最后采用管道滤波法剔出虚假目标,
检测出真正的目标。经仿真实验证明,此方法能有效地降低虚警,在复杂杂波背景中检测出目标。
(The key of ship detection in sea infrared image with complex clutter background is how to
reduce false alarms and detect true targets.In order to achieve this aim,a novel algorithm is proposed.
First,Haar wavelet transform technology is used as preprocessing,then constant false alarm rate(CFAR)
detetion,then run-length label to mark objects detected by the above step,finally pipeline filter to reduce
false alarms and detect true targets.Experiment results indicate that this method can effectively reduce false alarms and detect true targets in complicated sea background.
)
- 2012-03-12 14:14:55下载
- 积分:1
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MatlabPWavelet-packetP-harmonics
应用Matlab进行小波包对时变谐波分析的代码(Matlab Applications for wavelet packet on time-varying harmonic analysis)
- 2013-08-12 21:20:49下载
- 积分:1
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97wavelettansform
9/7 二维整数小波变换,可以实现图像的无损恢复。(9/7 two-dimensional integer wavelet transform, you can realize non-destructive restoration of images.)
- 2008-07-27 17:57:49下载
- 积分:1
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02
2.1 傅里叶变换
2.1.1 经典傅里叶变换
2.1.2 傅里叶变换的基本性质
2.1.3 快速傅里叶变换
2.1.4 短时傅里叶变换
2.2 小波分析与多分辨率分析的历史
2.3 小波分析与傅里叶变换的对比
2.4 小波变换
2.4.1 连续小波变换
2.4.2 离散小波变换
2.4.3 高维小波连续变换
2.5 常用小波基函数
2.5.1 小波函数
2.5.2 小波函数系
2.5.3 复数小波
2.6 构造紧支撑正常小波基
2.7 多分辨率分析与小波构造
2.8 分析小波包
2.8.1 小波包的定义及性质
2.8.2 分解小波包的空间
2.8.3 小波包算法(2.1 Fourier transform
2.1.1 classical Fourier transform
2.1.2 The basic properties of the Fourier transform
2.1.3 Fast Fourier Transform
2.1.4 short time Fourier transform
2.2 wavelet analysis and multi-resolution analysis of the history of
2.3 Wavelet Analysis and comparison of the Fourier transform
2.4 Wavelet Transform
2.4.1 Continuous Wavelet Transform
2.4.2 Discrete Wavelet Transform
2.4.3 Continuous high-dimensional wavelet transform
2.5 Common wavelet basis function
2.5.1 wavelet function
2.5.2 Department of wavelet function
2.5.3 Complex Wavelet
2.6 Construction of compactly supported wavelets normal
More than 2.7 resolution analysis and wavelet construction
2.8 Analysis of Wavelet Packet
2.8.1 Definition and properties of wavelet packet
2.8.2 wavelet packet decomposition space
2.8.3 Wavelet Packet Algorithm)
- 2013-10-19 16:34:13下载
- 积分:1