中文说明：基于小波特征提取的图像匹配matlab程序，将图像进行二维小波变换，提取概貌系数，并去掉对特征影响不大的系数
English Description：
Image matching matlab program based on wavelet feature extraction, the image is transformed by two-dimensional wavelet transform, the profile coefficient is extracted, and the coefficient which has little effect on the feature is removed