Image retrieval and classification method and system, terminal and storage medium

The invention discloses an image retrieval and classification method and system, a terminal and a storage medium. The method comprises the steps of obtaining a to-be-queried image; inputting the to-be-queried image into a target Hash classification network to obtain a predicted Hash code and a predicted image category corresponding to the to-be-queried image; and obtaining a target database Hash code, and determining a target image set corresponding to the to-be-queried image according to the target database Hash code and the prediction Hash code. The image category of the to-be-queried image and a group of similar images corresponding to the to-be-queried image are determined in a Hash code mode, the problem that the scene category of an image cannot be obtained by an existing image retrieval method based on content is solved, and further analysis and processing of the image are facilitated. 本发明公开了一种图像检索与分类方法、系统、终端及存储介质，所述方法包括：获取待查询图像；将所述待查询图像输入目标哈希分类网络，得到所述待查询图像对应的预测哈希码和预测图像类别；获取目标数据库哈希码，根据所述目标数据库哈希码和所述预测哈希