登录
首页 » matlab » compression

compression

于 2010-01-29 发布 文件大小:2KB
0 264
下载积分: 1 下载次数: 236

代码说明:

  主要用于图像经小波变换压缩图像,并计算压缩后的图像压缩性能即压缩比和信噪比(Mainly used for image compression by wavelet transform image, and calculate the compressed image compression performance that the compression ratio and signal to noise ratio)

文件列表:

Compression.m
SNR.m
thresholds.m
wave.m
wp.m

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

  • shapelet
    用于图像的多尺度分析,shapelet变换用matlab 编程实现(shapelet code)
    2021-04-15 19:48:54下载
    积分:1
  • WAVELET_JX
    单分量仿真信号进行小波变换后,小波脊线的提取(After the simulation of a single component signal wavelet transform, wavelet ridge extraction)
    2021-04-15 16:58:54下载
    积分:1
  • FK_Transform 实现f-k
    说明:  实现f-k变换,功能强大,各种滤波处理,地震波等都能用(wavelet transformF -k transform, powerful, a variety of filtering, seismic waves can be used)
    2019-03-20 15:44:28下载
    积分:1
  • CS-OMP-wavelet-reconstruction
    基于小波变换的图像压缩感知 并且进行OMP重建 对压缩感知的性能与采样点数进行性能分析与比较(Image compression based on wavelet transform perception and the OMP reconstruction performance of compressed sensing and sample analysis and comparison of performance points)
    2011-04-22 09:19:59下载
    积分:1
  • 包分析
    说明:  关于小波包分析的图像绘制,小波分析,三次分解,单支重构 故障信号(Image registration algorithms based on piecewise linear interpolators (spatiotemporal gradients or block matching) are analyzed to determine subpixel registration accuracy.)
    2020-04-20 15:44:46下载
    积分:1
  • wavelet
    基于DB4 的小波变换,实现了小波的分解与重构,可根据实际需要修改阈值的选取方法(Based DB4 wavelet transform to achieve wavelet decomposition and reconstruction, according to the actual need to modify the threshold selection method)
    2021-03-15 14:59:22下载
    积分:1
  • 功率谱
    说明:  利用此代码绘制声信号的功率谱,显示功率谱线。普通音频文件均可实现(Drawing power spectrum)
    2021-01-22 14:32:24下载
    积分:1
  • createDictionary
    图像的压缩感知进行稀疏化时,首先需要进行创建字典,本程序就可以创建gabor字典(to create the gabor dicitionary)
    2011-11-22 13:49:55下载
    积分:1
  • matlab3
    相关性小波去噪的程序实现,相关性去噪的程序实现(Wavelet denoising procedures related implementation procedures related to implementation of denoising)
    2010-05-21 09:23:17下载
    积分:1
  • Matlab 梳状滤器程序
    心电图(ECG)是临床上诊断心血管疾病的重要方法。 数字滤波作为数字信号处理技术的重要组成部分,广泛应用于诸如信号分离、恢复、整形等多种场合中。为了使信号不失真及在可编程逻辑器件中容易实现,采用具有严格线性相位特性的FIR滤波器进行低通滤波(0-150Hz),用整系数梳状滤波器来去工频干扰及基线漂移,从而达到对心电信号进行预处理的目的。(Electrocardiogram (ECG) is an important method for clinical diagnosis of cardiovascular diseases. As an important part of digital signal processing technology, digital filtering is widely applied to many occasions, such as signal separation, recovery, shaping and so on. In order to make the signal undistorted and easy to be realized in programmable logic device, the FIR filter with strict linear phase characteristics is used for low pass filtering (0-150Hz), and the entire coefficient comb filter is used to get the interference of the power frequency and the baseline drift, thus the purpose of preprocessing the ECG signal is achieved.)
    2018-04-06 19:05:57下载
    积分:1
  • 696518资源总数
  • 106245会员总数
  • 18今日下载