Composite Insulator Hydrophobicity Image Detection Method Based on Morphology
Mei Xi · 2013
In order to test the hydrophobic grades of insulators rapidly and accurately,we proposed a morphologybased image processing method.The method is for using in analysis of visible light images.The method includes optimizing the surface overlying water drops image of a composite insulator through morphological methods firstly and then determining the insulator's hydrophobic grade by using an improved shape factor method.Experimental results show that using this de-noising processing method can fill the holes in bead image,remove burrs on the edge of water,and eliminate the influence from background lights on visible-light-captured images which helps to accurately measure the grades of hydrophobic composite insulator within HC1~3and 6~7.It is concluded that using the method can improve the accuracy of hydrophobic-level detection of composite insulators and enhance the effect of analyzing the composite insulator hydrophobicity images.