Research on Histogram Algorithm for Low Voltage Electrical Apparatus Switching Arc´s Image Enhancement

It´s difficult to find contact from the image that was photographed by high-speed image sampling system because of the light reflection characteristic of switching arc, contact and interrupter. It do enhancement process to arc image by image enhancement algorithm of histogram and local histogram. In order to find the arc image and on the same time can find contact and the interrupupter´s detail in the arcing process. The simulation result shows that the contace and arc´s relative position can be observed clearly by this method.