O'Reilly logo

OpenCV with Python Blueprints by Michael Beyeler

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

Chapter 7. Learning to Recognize Emotions on Faces

We previously familiarized ourselves with the concepts of object detection and object recognition, but we never combined them to develop an app that can do both end-to-end. For the final chapter in this book, we will do exactly that.

The goal of this chapter is to develop an app that combines both face detection and face recognition, with a focus on recognizing emotional expressions in the detected face.

For this, we will touch upon two other classic algorithms that come bundled with OpenCV: Haar Cascade Classifiers and multi-layer peceptrons (MLPs). While the former can be used to rapidly detect (or locate, answering the question: where?) objects of various sizes and orientations in an image, ...

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