The automatic cutting algorithm of the plastic film based on image processing

Daode Zhang, Yanli Li

School of Mechanical Engineering, Hubei University of Technology,Wuhan,China

This paper proposes an algorithm based on image processing to solve the dislocation problem when cutting the edge, which is in the light of the uneven edge and the wrong side phenomenon. First of all, the images of the plastic bag edge captured by the camera are pre-treated; then the image is enhanced by fuzzy contrast enhancement algorithm, which is aim to extract the creases contour; finally the edge of the image is detected used by the Canny operator to get the crease on the edge of plastic bag, the cutter position can be obtained by offset some distance from the creases. The research results show that this algorithm is very effective to solve the dislocation problem when cutting the plastic bag edge automatically.