Viscovery is an image recognition and matching service. Their API can be integrated into mobile environments to cross compare an uploaded image with a library of images. Hosted through Mashape, their service is scalable, allowing hosting for millions of uploaded images.
The following is a list of SDKs from our SDK directory that matched your search term. Though your definition of an SDK may differ, in our world, we define SDKs as platform- specific tools for consuming existing APIs of the sort we list in our API directory. For example, the Ruby SDK for consuming the Twitter Ads API. If you think an SDK, API, or other asset is missing from our directory, be sure to check our guidelines for making contributions to ProgrammableWeb.