用db4 小波对一幅图像进行二维2 尺度分解后􀈆 在不同方向上获得其重构图像。-The image is reconstructed in two directions by using db4 wavelet to decompose an image in two directions.

ica matlab code which written recently.ICA is a statistical method, the goal of which is to decompose given multivariate data into a linear sum of statistically independent components