Wikipedia
Corrigon is a visual search company that was founded in 2007 by Einav Itamar and Avinoam Omer. Corrigon's main business is in the field of copyright monitoring: Corrigon provides an image monitoring solution that identifies how and where images are being used in the internet and in print.
Corrigon's Image identifier uses Content-based image retrieval algorithms to identify images even when they have been colorized, cropped, or otherwise modified. The user’s interface is web-based - only a browser is required for loading the images and start using the service. The system identifies all the images that were found on the web which look similar to the input images, and generates a periodic usage report for Corrigon's customers