基于傅里叶展开图像处理算法的激光打印机具识别
包清1,2, 王世全3, 吕晨1

Recognition of Laser Printer Based on the Image Processing Algorithm by Fourier Expansion
BAO Qing1,2, WANG Shiquan2, LÜ Chen1
遮蔽现象示例图片(左右为不同机具打印的文件灰度曲线)