#acl All:read marco:admin,read,write,revert,delete aguilarf:admin,read,write,revert,delete cabellos:admin,read,write,revert,delete frasanz:admin,read,write,revert,delete lostale:admin,read,write,revert,delete

= Image recognition =

== Current Solutions ==
=== Pastec ===
Pastec is an open source index and search engine for image recognition based on OpenCV. It can recognize flat objects such as covers, packaged goods or artworks.

It is sell as a remote service, or we can get the engine an install in our own servers.

Basically work like:
 * During the index creation detecting features on the images using ORB (oriented BRIEF) keypoint detector in the images of the catalog.
 * During the searching, 
  * it uses the same algorithm to detect the same ORB features in the searched image. 
  * Then using knn (k-nearest neighbors) with the ORB features on the catalog, it get the N most similar images.
  * Then creates a homomorphy matrix that translates the search image to the same space for each of these N images. And rank the images comparing (???) with the searched image.
  * Returns the k better ranked images on the search.

== Links ==
 * [[http://pastec.io/]]
 * [[https://www.inaturalist.org/]]