I have a fingerprint image stored in IPFS and I want to compare with another fingerprint image, because i need to know if is the same fingerprint ,is there some way, some lib that i can compare this images using solidity language?

  • 2
    You wouldn't want to compare actual fingerprints but hashes of said fingerprints which must align. However, I'm not certain how this is done. I think you would need some way of fuzzy hashing and comparing to see if these fingerprints match for a certain percentage. – Gabe May 14 '19 at 13:37
  • For comparing strings: ethereum.stackexchange.com/questions/30912/… – Lauri Peltonen May 14 '19 at 18:33

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.