Most of the images you see in our database could not be processed by the software, so the size and the position of their facial features had to be entered or adjusted manually. This means that if you run a scan on one of those images, you won't always see the image itself among the top results.
The most important parts of the algorithm were made with OpenCV, an open source library that can help with anything from simple drawing softwares to machine vision.
For some great and free website-building tutorials go to w3schools.com. Their tutorials helped so much in making this website, they deserve to be mentioned.