The proposed method is tested on Concordia University CENPARMI handwritten numeral database, and the experimental results indicate that it is more effective than the other K-L expansion methods.

• 我们分别在Concordia University CENPARMI手写体阿拉伯数字数据库和南京理工大学NUST603HW手写汉字样本库上证实了所提出算法的有效性。