指纹图像分割是自动指纹识别系统预处理中最关键的技术之一. 精确、可靠地将指纹图像从背景中分割出来,能够加快后续工作的处理速度,提高识别算法的准确性-Fingerprint image segmentation is one of the Automatic Fingerprint Identification System Pretreatment most critical technology accurate and reliable fingerprint image segmentation　the background, can speed up the process of follow-up work to improve the accuracy of recognition algorithms