What is Face Detection?
It has the objective of finding the faces (location and size) in an image and possibly extract them to be used by the face recognition algorithm.
Algorithms
There are two algorithms
- Cascade Classifier
- Trains positive and negative images to quickly and accurately detect face regions.
- More details can be found in the Cascade Classifier post.
- Trains positive and negative images to quickly and accurately detect face regions.
- HOG(Histograms of Oriented Gradients)
- A method of extracting a histogram-type feature by considering the angle and size of the pixel variation
- More details can be found in the HOG (Histograms of Oriented Gradients) post.
- A method of extracting a histogram-type feature by considering the angle and size of the pixel variation