METHOD FOR CHECKING ERROR OF SLAB ADMINISTRATION NUMBER MARKING DEVICE BY USING DIGITAL IMAGE PROCESSING

摘要

A method for determining the abnormal state of a slab management number marking device by using the digital image processing technique is provided to grasp the abnormal state of a nozzle of the slab management number marking device and the remaining amount of paint and inform a user of the grasped result. Paint is embedded inside a marking device(110). Through an outlet of a marking device nozzel(115), the paint is spouted on front one-side of a hot slab(120). The spouted paint marks a slab management number(125). If the marking device marks the slab management number on a slab and then moves to the next, a camera(130) obtains the whole slab image by capturing the slab.