Invoice identification method and system based on image segmentation

The invention relates to the technical field of invoice information identification, in particular to an invoice identification system based on image segmentation, which comprises the following steps of: S1, acquiring a black and white invoice image; s2, detecting the gray value of the invoice image by a gray scanning component, and judging the validity of the acquired invoice image by a central control module; s3, the central control module adjusts the inclination angle of the image acquisition assembly, or performs secondary judgment on the definition of the invoice image according to the noisy point area proportion of the invoice image; s4, after the secondary judgment, the central control module adjusts the sensitivity of the image acquisition assembly, or adjusts the training frequency of the data training system according to the invoice image edge missing area; and S5, the central control module adjusts the single block segmentation area of the invoice image according to the extraction duration of the in