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利用小波变换系数重构图像,实现图像降噪地方法

于 2020-07-04 发布 文件大小:507KB
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代码说明:

  根据小波变换和噪声信号地能量分布特性,提出了一种先用小波变换对含噪图像进行多尺度分解,求出各尺度小波变换高频系数地噪声方差和阈值,利用各尺度地阈值对高频系数进行处理,然后利用小波变换系数重构图像,实现图像降噪地方法。(According to wavelet transform and noise signal and energy distribution characteristics, a first wavelet transform of the noisy image multiscale decomposition, obtained the high-frequency-scale wavelet transform coefficients and noise variance and thresholds, using the scale to the threshold value of the deal with high-frequency coefficients, and then the use of wavelet transform coefficients reconstructed image, to realize image denoising methods.)

文件列表:

基于小波变换的图像降噪.pdf

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  • wave_denoise
    此程序仿真了一个被污染了的信号源,然后通过小波去噪,成功取出了信号中的杂波(This procedure simulation has polluted the supply oscillator, then through the wavelet denoising, the success took out in the signal clutter )
    2012-04-09 09:52:31下载
    积分:1
  • Cosine_Transform
    余弦变换-DCT。好用的小波变换方法程序。(Cosine transform-DCT. Use of wavelet transform.)
    2009-06-20 17:31:55下载
    积分:1
  • Pisarenko_music_esprit
    分别用Pisarenko谐波估计法、MUSIC算法和ESPRIT算法对三正弦叠加高斯白噪声信号源进行频率估计,附件中有代码说明,编译环境为matlab。(Respectively Pisarenko harmonic estimation, MUSIC algorithm and the ESPRIT algorithm superimposed on the three sine Gaussian white noise signal source for frequency estimation, in the annex to the code description, the compiler environment matlab.)
    2021-03-24 15:09:14下载
    积分:1
  • chengxu
    基于小波变换的异步电机的故障诊断,本文采用三层小波包分析,诊断效果较好(Wavelet-based fault diagnosis of induction motors, this paper, three wavelet packet analysis, diagnosis, better)
    2011-05-29 09:44:55下载
    积分:1
  • wave-move
    描述电磁波(电场或磁场)在自由空间传播的Matlab程序。(Description of electromagnetic waves (electric or magnetic) in free-space propagation of Matlab procedures.)
    2020-11-03 09:39:52下载
    积分:1
  • xiaobo
    关于小波变换的降噪处理,包括强制降噪,给定阈值降噪,默认阈值降噪等,并给出了对比图(Noise reduction processing on the wavelet transform, including mandatory noise reduction, noise reduction given threshold, default threshold noise reduction, and gives comparison chart)
    2021-05-14 11:30:03下载
    积分:1
  • ChirpLab
    线调频小波路径追踪算法的程序,对研究瞬时频率估计有很大的参考价值。(Chirplet path tracing algorithm of the program, the study of instantaneous frequency is estimated that there is a great reference value.)
    2012-04-16 16:43:37下载
    积分:1
  • OouraFFT-master
    说明:  快速傅里叶变换,fft,ourrafft master(Fast Fourier Transform Algorithm)
    2020-11-13 22:29:42下载
    积分:1
  • Wavelet_denoising
    小波变换的MATLAB源程序,使用语语音增强,去除噪声效果好,算法实现简单,清晰(MATLAB source wavelet transform, using language speech enhancement, noise removal effect, algorithm is simple and clear)
    2010-06-01 14:47:30下载
    积分:1
  • wavetest0
    morlet小波变换的周期性分析程序,分析长时间序列的周期性(morlet periodic wavelet analysis program, analysis of long time series of the periodic)
    2011-07-29 09:47:00下载
    积分:1
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