Method and system for detecting tobacco shreds running during shredding

The invention belongs to the technical field of cigarette product detection, and particularly relates to a method and a system for detecting tobacco shreds running during shredding. According to the method, the roundness and the width are selected as judgment parameters, judgment conditions are correspondingly set to judge the cut tobacco deviating from the cut tobacco, the detection process is simple, and the detection cost can be effectively reduced; according to the judgment condition, the circularity and width of each tobacco shred sample which is subjected to shred cutting and sheet running are obtained according to the image obtained by processing the corresponding image data, so that the judgment condition can adapt to the actual shred cutting and sheet running condition, and the reliability of the judgment condition and the accuracy of a detection result are ensured; moreover, the cut tobacco deviating from the tobacco shreds is judged by respectively setting judgment conditions corresponding to the c