Yin and yang contract detection system based on image identification and positioning

The invention relates to a yin-yang contract detection system based on image recognition and positioning, and the system comprises a data layer which records and stores the use data of a contract, a seal use record, a machine tool, and a seal; the algorithm layer is called by the upper application layer and is provided with an image processing algorithm, an image recognition algorithm, a text comparison algorithm and a labeling algorithm; the application layer is used for contract management, contract seal record management and machine tool management; the interface layer comprises a machine tool driving interface for driving hardware machine tools and a contract interface for acquiring external contract information; and the application layer calls an image recognition algorithm and a labeling algorithm of the algorithm layer, converts the contract image into text content, and sets positioning information for each recognized text. Compared with the prior art, the method has the advantages that a seal user is