Online quality monitoring method for traditional Chinese medicine decoction pieces

The invention belongs to the technical field of quality monitoring of traditional Chinese medicine decoction pieces, and discloses an online quality monitoring method for traditional Chinese medicine decoction pieces, which comprises the following steps: acquiring images of the traditional Chinese medicine decoction pieces; carrying out graying and Gaussian filtering processing on the acquired image; performing full-threshold segmentation on the processed image to obtain a foreground part and a background part of the image; performing gridding processing on the foreground part of the image, and constructing a two-dimensional coordinate system of an area where a grid is located; calculating the distance between one vertex and other vertexes in the same grid; performing preliminary screening according to the grid vertex distance; and carrying out secondary screening on the traditional Chinese medicine decoction pieces according to the area threshold. According to the method, in order to avoid errors of the firs