Credible fruit traceability method and device based on fruit texture atlas and blockchain

Abstract

The present invention discloses a credible fruit traceability method and device based on fruit texture atlas and blockchain. According to the present invention, images of fruit pedicel part and fruit navel part of a single fruit are obtained, and the images are grayed and normalized to be converted into rectangular images; features are extracted from the rectangular images, respectively, and are encoded to obtain a fruit pedicle feature code table and a fruit navel feature code table; the two feature code tables are subjected to a merging operation to obtain a combined bidirectional feature code table, thus forming a unique fruit texture atlas. By processing the fruit texture atlas, the fruit texture atlas information and related information are stored on the blockchain. The user uses the same algorithm to obtain a fruit texture atlas of a fruit to be inspected through a smart terminal, the fruit texture atlas is processed and then is compared with the information on the blockchain for verification, so as to achieve the purpose of credible traceability. The present invention realizes the uniqueness and convenience of fruit identification, solves the problem of information tampering by evidence storage on the blockchain, and achieves the purpose of credible traceability.