在工程图纸计算机处理过程中，分割字符与图形是非常重要的步骤，但字符与图形粘连的问题很难处理。本文在分析了几种字符与图形分割技术的原理和实现方法的基础上，提出一种分割与图形粘连字符的方法—图元屏蔽技术。试验结果表明，这种方法对于分割与正交方向线段粘连的字符十分有效，特别适用于处理字符串中全部与图形粘连或多个粘连的现象。

The segmentation of character and graphics is a fundamental step when processing engineering drawings using a computer. However, it is hard to deal when the character to uches the graphics. This paper focus on this problem and gives a solving method. The method is called "the technique by shield" . It shields lines in a graphics before segmentation. Some tests have shown good results of segmentation compared to which does not use this method in a graphics with a lot of touching points between the characters and graphics contours.