Request for offchain couchdb tutorial for image data storage



I wanted to ask if there is any HLF off-chain CouchDB data maintenance for storing image tutorials available.  I want to navigate the incoming image to off-chain DB rather than going to onchain CouchDB(for Hyperledger2.2). Basically for any invoked transaction scenario if the end-user wants to add information to the ledger that single transaction text is logged to the ledger along with the hashed reference to the image stored in off-chain CouchDB local instance. 
To set the context for question I have following links: