Method and device for detecting circulation consistency of cultural relics and artworks based on digital images

The invention provides a cultural relic and artwork circulation consistency detection method and device based on a digital image, and belongs to the technical field of image processing, and the method comprises the steps: obtaining at least two digital images of a cultural relic and artwork in at least two circulation stages; inputting each digital image into a salient target detection model to obtain an entity image corresponding to each digital image; inputting the first entity image and the second entity image in the entity images into a similarity calculation model to obtain the similarity between the first entity image and the second entity image; the similarity calculation model is obtained by performing joint training on the image feature extraction model and the high-dimension mapping model based on an image contrast learning method; and based on the similarity, determining whether the circulation stage corresponding to the first entity image of the cultural relic artwork is consistent with the circul