O'Reilly logo

OpenCV By Example by Vinícius Godoy, David Millán Escrivá, Prateek Joshi

Stay ahead with the world's most comprehensive technology and business learning platform.

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, tutorials, and more.

Start Free Trial

No credit card required

Overlaying a facemask in a live video

OpenCV provides a nice face detection framework. We just need to load the cascade file and use it to detect the faces in an image. When we capture a video stream from the webcam, we can overlay funny masks on top of our faces. It will look something like this:

Overlaying a facemask in a live video

Let's take a look at the main parts of the code to see how to overlay the preceding mask on top of the face in the input video stream. The complete code is available in the downloadable code bundle provided along with this book:

int main(int argc, char* argv[]) { string faceCascadeName = argv[1]; // Variable declarations and initializations // Iterate until ...

With Safari, you learn the way you learn best. Get unlimited access to videos, live online training, learning paths, books, interactive tutorials, and more.

Start Free Trial

No credit card required