Light-emitting diode detection method by utilizing digital image

The invention relates to a light-emitting diode detection method by utilizing a digital image. The light-emitting diode detection method by utilizing the digital image is used for checking whether each light-emitting diode in a computer panel is abnormal or not. A device monitoring method comprises the following steps of: loading ambient brightness information into monitoring equipment; adjusting shooting parameters of an image acquisition unit according to ambient brightness information by the monitoring equipment; shooting a lamp signal image by the image acquisition unit, so as to obtain lamp signal position information of all the light-emitting diodes; comparing to determine whether the lamp signal position information about the light-emitting diodes is consistent with preset position information according to the preset position information by the monitoring equipment; and if the lamp signal position information is not consistent with the preset position information, outputting error information by the mo