Using the Viola-Jones Framework
Training a Viola-Jones classifier from scratch can take a long time. Fortunately, a pre-trained Viola-Jones classifier comes out-of-the-box with OpenCV! You will use that one to see the algorithm in action. If you really want to train the classifier yourself,
scikit-image offers a tutorial with the accompanying code on their website.
To follow the exercise in this lesson, you’re going to need to dowload the following image:
You’ll also need to go to the OpenCV GitHub repo.
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