Location:
Search - db10 wavelet
Search list
Description: Matlab环境下利用Daubechies小波族中的db10小波对散斑退化图像进行了压缩数值仿真研究。研究表明：阈值以及分解层次的选取影响着图像压缩的质量。-Matlab environment using Daubechies wavelet tribal db10 wavelet the withdrawal of speckle image compression for the numerical simulation. Research shows : the threshold level of decomposition is influenced by the quality of image compression.
Platform: |
Size: 4264 |
Author: 安 |
Hits:
Description: Matlab环境下利用Daubechies小波族中的db10小波对散斑退化图像进行了压缩数值仿真研究。研究表明：阈值以及分解层次的选取影响着图像压缩的质量。-Matlab environment using Daubechies wavelet tribal db10 wavelet the withdrawal of speckle image compression for the numerical simulation. Research shows : the threshold level of decomposition is influenced by the quality of image compression.
Platform: |
Size: 4096 |
Author: 安 |
Hits:
Description: 小波滤波的MALLAT算法,程序编写的很容易懂,能实现bd1-db10的小波分解和重构,比我前一次发的小波算法更简单易懂-Wavelet filtering MALLAT algorithm, programming is very easy to understand, to achieve bd1-db10 wavelet decomposition and reconstruction, than I made the previous wavelet algorithm is more straightforward
Platform: |
Size: 3072 |
Author: 李维付 |
Hits:
Description: 选择db10 小波和db10 小波两个小波函数实现了小波变换-Choose two db10 wavelet and wavelet db10 wavelet function implementation of wavelet transform
Platform: |
Size: 45056 |
Author: 紫瓶 |
Hits:
Description: 用haar和db10小波分解重构图像，实现阈值消噪-Haar, and db10 wavelet decomposition with the reconstructed image to achieve the threshold de-noising
Platform: |
Size: 1024 |
Author: 冯杰 |
Hits:
Description: haar和db10小波分解重构图像 haar和db10小波分解重构图像-haar and db10 wavelet decomposition of the reconstructed image and db10 haar haar wavelet decomposition of the reconstructed image and db10 wavelet decomposition of the reconstructed image
Platform: |
Size: 1024 |
Author: 刘飞 |
Hits:
Description: 此示意程序用DWT实现二维小波变换
1.调原始图像矩阵load wbarb
2.进行二维小波分解l=wfilters( db10 , l )
3.分解结果显示figure(1) -This indicated procedures used to achieve two-dimensional wavelet transform DWT 1. Emphasized the original image matrix load wbarb 2. For two-dimensional wavelet decomposition l = wfilters (' db10' , ' l' ) 3. Decomposition results figure (1)
Platform: |
Size: 2048 |
Author: zhao long |
Hits:
Description: 采样频率
fs=10000
轴承外环故障信号
fid=fopen( bearingout.dat , r ) 故障
N=1024
xdata=fread(fid,N, int16 )
fclose(fid)
xdata=(xdata-mean(xdata))/std(xdata,1)
时域波形
figure(1)
plot(1:N,xdata)
xlabel( 时间 t/n )
ylabel( 电压 V/v )
db10小波进行4层分解
一维小波分解
[c,l] = wavedec(xdata,4, db10 )
重构第1～4层细节信号
d4 = wrcoef( d ,c,l, db10 ,4)
d3 = wrcoef( d ,c,l, db10 ,3)
d2 = wrcoef( d ,c,l, db10 ,2)
d1 = wrcoef( d ,c,l, db10 ,1)
- Sampling frequency fs = 10000 bearing outer ring fault signal fid = fopen (' bearingout.dat' , ' r' ) failure N = 1024 xdata = fread (fid, N, ' int16' ) fclose (fid ) xdata = (xdata-mean (xdata))/std (xdata, 1) time-domain waveform figure (1) plot (1: N, xdata) xlabel (' Time t/n' ) ylabel ( ' voltage V/v' ) db10 wavelet decomposition 4 layer one-dimensional wavelet decomposition [c, l] = wavedec (xdata, 4, ' db10' ) 1 ~ 4 reconstructed detail signal d4 = wrcoef (' d' , c, l, ' db10' , 4) d3 = wrcoef (' d' , c, l, ' db10' , 3) d2 = wrcoef (' d' , c, l, ' db10' , 2) d1 = wrcoef (' d' , c, l, ' db10' , 1)
Platform: |
Size: 1024 |
Author: 王飞 |
Hits:
Description: 离散小波的MATLAB计算程序,采用db10小波进行水位数据序列的离散化-code for discrete wavelet transform in MATLAB
Platform: |
Size: 1024 |
Author: 余世鹏 |
Hits:
Description: 本程序实现二维张量db10小波的图像基提取，并试图提取试验图像所对应的基-Mr Keelty to take this program to achieve the two-dimensional tensor db10 wavelet image, and tried to extract the test image corresponding to the base
Platform: |
Size: 2048 |
Author: gaoxiangyang |
Hits:
Description: 小波基为db的小波变换，可以提取输入图像的小波特征，低频高频的信息，然后得到特征后用于分类或识别-Wavelet transform is a wavelet transform, which can extract the wavelet features of the input image, low frequency and high frequency information, and then get the feature for classification or recognition
Platform: |
Size: 87040 |
Author: Heny |
Hits: