Have you tried this demo? Take a look at Ditto Labs deep learning image recognition API (metadata about public photos that Ditto pulled from Twitter and Tumblr).
API Demo | Ditto
Ditto offers a proprietary, logo-recognition service that scours photos and delivers metadata about the presence and position of a branded logo from a catalog of trained brands. For the scope of this Agreement and related Order Forms, Ditto will operate a remotely hosted service which, via an API, ingests a set of URLs to content identified by Client.
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