Image Retrieval Based on Blockchain

There are two problems in the traditional picture retrieval process: (1) It is difficult to find a specific picture accurately. (2) The index has the risk of being attacked and lost. To solve these two problems, we introduced the blockchain for secure indexing. In the face of traditional text indexing methods, we utilize the blockchain to guarantee the preservation of that index. When facing that precise indexing of pictures, we find the precise pictures by hashing the pictures.