Introduction - If you have any usage issues, please Google them yourself
myJNIOpenCV = new JNIOpenCV()
String filename = "lena.jpg" //OpenCV的官方测试图片(人脸识别)
String cascade = "haarcascade_frontalface_alt.xml"
int[] detectedFaces = myJNIOpenCV.detectFace(40, 40, cascade, filename)
int numFaces = detectedFaces.length/4