Java: Data Science Made Easy

Using OpenCV to detect faces

The example that follows was adapted from http://docs.opencv.org/trunk/d9/d52/tutorial_java_dev_intro.html. Start by loading the native libraries added to your system when OpenCV was installed. On Windows, this requires that appropriate DLL files are available:

System.loadLibrary(Core.NATIVE_LIBRARY_NAME); 

We used a base string to specify the location of needed OpenCV files. Using an absolute path works better with many methods:

String base = "PathToResources"; 

The CascadeClassifier class is used for object classification. In this case, we will use it for face detection. An XML file is used to initialize the class. In the following code, we use the lbpcascade_frontalface.xml file, which provides information ...