I'm developing a mobile app and I want to know if you know any JavaScript library or similar to compare two images.
I need to apply a search for similar images after the user takes an image with the cell phone.
For example I have a wine label stored in my DB and I need that after the user takes a photo with the device a search is performed and look if the image taken by the user is similar to one in the DB.
The purpose of this is to search if the label exists and if exists print the product information.