登录
首页 » matlab » wavelet

wavelet

于 2013-07-22 发布 文件大小:2KB
0 271
下载积分: 1 下载次数: 27

代码说明:

  利用matlab中的小波变换函数,对图像进行小波降噪,并分析降噪效果。(The wavelet transform using matlab function, the image wavelet noise reduction, and analyze the noise reduction effect.)

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • JPEG2000
    说明:  小波变化代码,是比较好的测试向量,包括位平面编码和MQ(Wavelet transform code, is a better test vectors, including the bit plane coding and MQ)
    2020-12-06 09:39:24下载
    积分:1
  • gaga
    基于小波变换的ECG信号去噪系统设计,在信号采集时,身体的任一微小运动都会产生“基线漂移”,这是一种低频干扰,同时,由于肌电的存在又产生了高频的肌电噪声,由于空间电磁场的存在又使心电信号中混有50Hz的工频干扰。这些噪声不去除,就会影响下一步的信号处理。 综合运用数字信号处理的理论知识进行生物医学信号增强系统设计,实现ECG信号的去噪,从而加深对小波变换及其应用的理解,建立概念多分辨分析的概念,加深理解信号增强的原理、方法和步骤。本设计的主要内容是设计一个基于小波变换的ECG信号去噪系统,实现ECG信号的去噪。 (ECG signal denoising based on wavelet transform system design, signal acquisition, any small movement of the body will have a " baseline drift" , which is a low-frequency interference, while the high frequency due to the existence of the EMG muscle electrical noise due to the presence of electromagnetic field and the ECG signal mixed with a 50Hz power frequency interference. The noise is not removed, it will affect the next step in the signal processing. Use the theoretical knowledge of digital signal processing for biomedical signal enhancement system design to achieve the de-noising of ECG signal, so as to deepen understanding of the wavelet transform and its applications, to establish the concept of multi-resolution analysis of the concept, deepen the understanding of signal enhancement of the principle, the method and steps. The main elements of this design is the design of an ECG signal denoising based on wavelet transform denoising the ECG signals.)
    2012-07-07 16:25:58下载
    积分:1
  • feichouyangswt
    非抽样小波变换的程序,可以自己更改使用,去噪效果较好( UWT s program, you can change the use of their own, better de-noising)
    2015-01-26 10:39:24下载
    积分:1
  • wave
    Harr小波具有紧支撑、零调和性和优良的正交性等优点,因此选择它作为小波变换的基函数。对采样数据进行4层小波包变换得到16维的特征样本。(Harr wavelet has compact support, zero reconcile and excellent orthogonality, etc., so choose it as the base function of wavelet transform. 4 layers of sampled data wavelet packet transform feature samples 16 dimensions.)
    2014-09-17 16:25:07下载
    积分:1
  • JZBWav_4_29
    基于小波变换的语音识别,内含毕业论文和摘要以及可执行源程序(Speech recognition based on wavelet transform, containing thesis and summary of executable source code)
    2021-03-03 14:49:33下载
    积分:1
  • WaveCluster
    一个基于小波变换的数据聚类样例 Matlab实现(A sample Matlab based on wavelet transform data clustering)
    2020-12-28 19:49:02下载
    积分:1
  • Imattlabcoodem
    图象增强小波变换将一幅图象分解为大小、位置与方向都不同的分量。在做逆变换之前能改变小波变换域中某些系数的大小,,这样就能够洋选择的放大所感兴趣的分量而减小不需要的分量。给定一个图象信号,用二维小波分析析对图象进行增强处理。 (Image enhancement wavelet transform decomposition size, location and direction of the different components of an image. Wavelet transform domain, some the size of the coefficient can change before doing the inverse transformation, so can the component of interest to the amplification of the ocean choose to reduce the unwanted weight. Given an image signal, the analysis of two-dimensional wavelet analysis of image enhancement processing.)
    2012-07-27 21:23:36下载
    积分:1
  • dft
    说明:  基于dft的水印代码,水印注入、提取、防攻击测试(DFT-based watermarking code, watermark injection, extraction, anti-attack test)
    2008-09-22 17:45:44下载
    积分:1
  • 13-8
    波的合成及拍频现象实例,输入两正弦波的振幅、初相位及频率观察波的合成及拍频现象(Synthesis and beat frequency wave phenomena instance, enter the two sine wave amplitude, initial phase and frequency of observation of waves synthesis and beat frequency phenomenon)
    2009-09-30 08:41:52下载
    积分:1
  • synsq_toolbox_v1
    同步压缩小波变换(synchrosqueezing wavelet transform)工具箱,用于信号处理时频分析(synchrosqueezing wavelet transform toolbox for time-frequency analysis in signal processing )
    2012-04-23 15:51:10下载
    积分:1
  • 696518资源总数
  • 106208会员总数
  • 21今日下载