MiniCamCap (also known as Mini Cam Cap) is a program that allows you to monitor and record the activity that occurs before your webcam. It has automatic detection of movements in the face; In this way, you will only start recording when changes occur in the person you are focusing on.
In addition, MiniCamCap allows you to capture images (in JPG) of the webcam that can be sent automatically by email. It has utilities to compress the resulting video so that it weighs as little as possible.
Some other MiniCamCap options are the following: it allows recording with or without sound, programming it only for a period of time, working with multiple different webcams, and so on.
You can free download MiniCamCap 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.