Nope, the idea is to store the actual data on a cloud database like Amazon Cloud or Google Cloud and just put on the blockchain the "signtaure " ( = hash) of the data. This way we don't put in a very expensive place ( blockchain) from computational point of view the data. But we do ensure that nobody messed up with the data as the data signature is on the blockchain and everybody can see it and if you modify it the signatures don't match anymore. It will be 1 signature (hash ) per "image".
Instead of using one of the big boys like Amazon or Google, why not put data in decentralized storage that is much cheaper, like Siacoin is doing? Cryptos helping cryptos.
Yes, great question. I would love to know the answer.