Having a safe is a great way to store your valuables. Now, you can lock them away in a DIY, face-recognising setup with a some free software, a Raspberry Pi and a Pi camera.
Tony DiCola and David Scheltema at Make put together a step-by-step guide for installing and configuring the software, connecting the components and mounting the Pi on the safe door. The free software is based on OpenCV, a small program that runs well on a Raspberry Pi, and the camera is just a proper Pi camera module.
Once everything is all set up, you train the installed software to recognise your face and hide your prized possessions away. If you're concerned with thieves printing out a picture of your face, fear not: First of all, they would have to know it's a face-recognising safe. Secondly, you can adjust the sensitivity to make the software much stricter. For the complete build guide, check out the link below.