License plate recognition method and device

The invention provides a license plate recognition method and device, and the method comprises the steps: obtaining a to-be-recognized image, obtaining a color feature map through a color feature extraction mode, carrying out the preliminary positioning of a license plate region in the to-be-recognized image, obtaining a first image, carrying out the preprocessing, obtaining a second image, and carrying out the edge detection, thereby determining a license plate image. And then carrying out character segmentation on the license plate image to obtain a character image of each character, carrying out recognition, and determining a license plate number. In this way, the area where the license plate exists can be rapidly detected through the color features, preliminary area demarcation is conducted, then the edge detection technology is used for conducting accurate detection on the license plate image, the license plate area is accurately determined, accurate positioning of the license plate can be conveniently a