Traditional Chinese medicine decoction piece quality inspection and grading method based on image recognition

The invention discloses a traditional Chinese medicine decoction piece quality inspection and grading method based on image recognition, and belongs to the technical field of traditional Chinese medicine quality inspection. The method comprises a transmission module for conveying decoction pieces, an image acquisition module, an image recognition module for extracting characteristic parameters of the decoction pieces, and an automatic grading module for determining quality grades of the decoction pieces. The method further comprises the following steps: 1) manually selecting decoction piece samples, and manually grading the samples into superior products, medium products and inferior products; 2) build an automatic grading model; and 3) automatically classifying the decoction pieces in batches according to the built grading model. The characteristic parameters of the traditional Chinese medicine decoction pieces are extracted, the naive Bayes classification model is utilized, the decoction pieces are automati