You can start to play with something like:

  
    
    
    Near-duplicate image search Show and Tell
  
  
    New example on building a near-duplication image search utility. Comprises of an image classifier, Bit LSH (Locality Sensitive Hashing), random projection, and TensorRT optimized inference to drastically reduce the query time. LSH and random projection have been shown with from-scratch implementations for readers to better understand them.
  


Check also this thread:
  
    
    
    Tutorials/materials for fast image retrieval tasks General Discussion
  
  
    Hi all. 
Looking for resources/materials that build on TensorFlow/Keras (preferably) for doing scalable image similarity searches.