硅橡胶复合绝缘子憎水性图像分割算法

绝缘表面的憎水性是衡量绝缘材料电性能的一个重要指标。用喷水分级法测量绝缘子的憎水性,关键是准确地分割出水珠(或水迹)区域。本文根据水珠图像和水迹图像特征的不同,采用不同的滤波过程,然后用基于熵自动阈值分割法对水珠图像和水迹图像进行分割,最后用二值形态重构开运算提取主要区域。实验表明,该方法简单有效地实现了憎水性图像的分割。

Segmentation Algorithm of Hydrophobic Image of Polysilicone Composite Insulator

Hydrophobic of insulator surfaces is an important indicators of electrical property of insulating material.The key problem of measuring hydrophobic based on spray water method is to detect the accurate water drops(or watermarks) regions.In this paper,different filters are applied to water drops and watermarks images according to their different characteristics,then use automatic entropy threshold segmentation to get water drops(or watermarks) regions,and finally the main areas are extracted using binary opening-by-reconstruction.Experiments show that this method is quite accurate and universal for hydrophobic image segmentation.