利用ImageXpress系统灰度特征区分激光打印复印一体机的打印及复印文件初探
梁政
1
, 韩星周
1,
2
, 郝红光
2
Distinguishing between laser-printed and copied documents by using imageXpress
LIANG Zheng
, HAN Xing-zhou, HAO Hong-guang