计算机应用 ›› 2010, Vol. 30 ›› Issue (2): 437-440.

• 模式识别 • 上一篇    下一篇

基于数学形态学的套印偏差自动检测算法

高娟1,段中兴2   

  1. 1. 西安建筑科技大学信息与控制学院
    2. 西安建筑科大学
  • 收稿日期:2009-08-30 修回日期:2009-09-14 发布日期:2010-02-10 出版日期:2010-02-01
  • 通讯作者: 高娟
  • 基金资助:
    陕西省自然基金项目;国家自然科学基金资助项目

Overprint error detection algorithm based on mathematical morphology

  • Received:2009-08-30 Revised:2009-09-14 Online:2010-02-10 Published:2010-02-01
  • Contact: gao juan

摘要: 为了精确检测套印偏差,提出一种基于数学形态学的偏差自动检测算法。首先,对新形式色标采用多结构元素多尺度形态学边缘检测算法提取色标边缘;然后采用最小二乘拟合算法对其边缘进行拟合,得到套印色标圆的亚像素圆心坐标;最后经偏差计算公式获得准确的套印偏差数据。实验及实际测试结果表明,该算法且具有较强的抗扰性,能够满足高精度、实时的套印偏差检测要求。

关键词: 套印偏差, 数学形态学, 亚像素定位, 最小二乘法

Abstract: In order to get the precise Overprint error, a new Algorithm of the detection based on mathematical morphology is proposed. Firstly, the method of edge detection based on mathematical morphology is adopted to extract the edges of the mark .Then the sub-pixel position of the target center is obtained using the least –mean square circle fitting algorithm, and lastly, the result is worked out with the formula using the data obtained above. The experimental and factual testing results show that the proposed algorithm can filter the noise successfully and can meet the demands of high-quality and real-time of overprint. error detection

Key words: overprint error, mathematical morphology, sub-pixel positioning, least-square method