Face detection with Raspberry Pi

One nice thing that can be done with the latest technology is a really powerful image analysis. Also using a small unit like a Raspberry Pi can be enough to create tasks such as face detection and recognition.

These two tasks are quite similar. Detection is just the task of finding a face in an image (could be static image or a frame from a video stream). Recognition is finding a known face in a picture. 

For this post I will show you how to configure a small face detection system using a RPi and a PiCamera.

Send vocal message using TTS and Yowsup

Last time we saw how to install PicoTTS to make our Raspberry Pi speak. Using PicoTTS (or any other Text To Speech engine you like) and the Yowsup class to send media files that we already used for pictures, we will be able to send vocal messages from the RPi, instead of just text answers.

In the future, if Whatsapp will really enable audio calls (and Yowsup will support them), it would be possible to integrate also a vocal recognition module, so we could ask something to the RPi directly, with just a call and hear the answer.

What a wonderful task from such a small device!