针对EMD方法的不足,借鉴了主成分分析算法（PCA），调试通过可以使用，通过反复训练模板能有较高的识别率，用于建立主成分分析模型，在matlab环境中自动识别连通区域的大小。

- For lack of EMD, It draws on principal component analysis algorithm (PCA), Debugging can be used, Through repeated training CmsSUTmlate have higher recognition rate, Principal component analysis model for establishing, Automatic identification in the matlab environment the size of the connected area.