License plate recognition method based on combination of simplified yolov5 and halcon

The invention discloses a license plate recognition method based on combination of simplified yolov5 and halcon. The license plate recognition method comprises the following steps: image acquisition: acquiring a picture containing a license plate through a camera; license plate positioning: identifying the picture through a simplified yolov5 network, and generating the position of the license plate, namely the coordinate of the license plate; license plate preprocessing: segmenting the license plate picture through the license plate coordinates to obtain an image only containing a license plate, then performing image enhancement, license plate overturning correction and license plate character region approximation, and finally obtaining a region only containing characters and an image; character segmentation: segmenting each character of the license plate; and OCR recognition: performing OCR recognition one by one from left to right according to the characters extracted by the character segmentation module, a