AI Reverse Image Search - A better way to find similar images
CCV - CCV is a open source/cross-platform solution for blob tracking with computer vision.
Immerse Reverse Image Search - With a deep understanding of artificial intelligence, immerse.zone provides a reverse image search engine for hundreds of millions of image libraries, including stock photos, vectors, videos, GIF, etc.
PCV - PCV is an open source Python module for computer vision.
Popsync - Find that perfect picture faster with image metasearch
Sirv - Dynamic image processing, hosting and rich-media for retailers and eCommerce.