摘要： 随着电子病例技术的发展，牙科X 光图片的数字化分析在牙科疾病的诊断治疗中越来越重要。该文讨论了一种适用于电子病例的牙科X 光图像处理、测量系统。针对用户的感兴趣区域(ROI )，实现放大镜功能，并调整感兴趣区域的亮度、对比度。运用种子填充算法对用户选取的封闭区域填充颜色，可以较为精确地测量封闭牙齿病变区域的面积。

关键词: 电子病例；感兴趣区域；种子填充；面积测量

Abstract: With the developing of EPR, digital analysis of dentistical X-ray images is becoming more and more important in dentistical disease diagnosis and treatment. This paper proposes an EPR-suitable dentistical X-ray image processing and measuring system. The system provides a function of adjusting contrast and brightness of ROI, which is a special part selected by user from a dentistical X-ray image. It can also zoom in the ROI as a magnifier. Furthermore, a method using “flood-fill” function is proposed, which can measure the section area in a precise way

Key words: EPR; ROI; Flood-fill; Area measuring