Nowdays, in domestic power station boilers and large industrial boilers, the monitoring of the flame plays an increasingly important role in tht Steel material's production quality, meanwhile, considering the frequent replacement of the sensor in the boilers in recent years, the reliability of the flame of artificial observation and the intelligent management of industrial production etc, this paper makes flame image as the research object, and extracts flame image's six features, which are average brightness,average contrasts, smooth the thi...