摘要
小波分析能有效地从信号中提取信息,具有多尺度特性。利用Matlab小波工具箱,对数字图像进行分解,再分别由低频分量和高频分量在水平方向、垂直方向和对角方向进行多尺度重构。最后对采用不同小波基函数的重构图像进行了比较分析,并得出了对比结论。
The wavelet analysis can effectively extract information from a signal, which has a multi-scale characteristic. The digital image is decomposed by Matlab wavelet toolbox. And the multi-scale reconstruction is performed by the low-frequency and the high-frequency component in the horizontal, vertical and the diagonal direction. Finally, a comparative analysis of the reconstructed images using different wavelet base functions is made and the conclusion is drawn.
作者
张祥
张达永
张刘辉
潘栋
Zhang Xiang Zhang Dayong Zhang Liuhui Pan Dong(No. 94995 Unit ,Rugao 226500 No. 739Ii Unit ,Nanjing 210012)
出处
《气象水文海洋仪器》
2016年第4期38-41,45,共5页
Meteorological,Hydrological and Marine Instruments
