According to the characters of the equipment switch, brings forward a new detection method of grayness mutation line; according to the characters of the broken switch, brings forward a new detection method of the outline slope 研究并分析了幾種常用的圖像識別方法,針對設(shè)備開關(guān)的識別,提出了灰度突變線檢測法;針對斷電器開關(guān)的特點,提出了邊緣斜率檢測法。