Some conventional detection operators are analysed in detail, such as Roberts operator, Sobel operator and Laplacian operator, and also apply this operators to the arc image to test their detection results.

• 对一些传统的边缘检测算子，如：Roberts算子、Sobel算子、拉普拉斯算子等等进行了原理分析，并将这些算子应用于电弧图像，测试其边缘检测的效果。