从而让机器人在纸上画出肖像漫画,首先必须由计算机自动生成人脸的线条画。 因此,需要采用基于机器视觉的方法,结合人脸检测和人脸特征提取等技术-geneous，Inhomogeneous M arkov Random Field Model is employed as the statistical model，and a non—parametric sampling schem e is used to capture the complex statistical character