easypr 调用提示 需要训练 求助大神 教我下

[厌空筝]

OpenCV Error: Bad argument (The SVM should be trained first) in CvSVM::predict, file ..\..\..\..\opencv\modules\ml\src\svm.cpp, line 2131




public String getNumber(String path){
System.out.println(System.getProperty("java.library.path"));
org.bytedeco.javacpp.Loader t;
String result = null;
String imgPath = path;
System.out.println(imgPath);
Mat src = imread(imgPath);
PlateDetect plateDetect = new PlateDetect();
plateDetect.setPDLifemode(true);
Vector<Mat> matVector = new Vector<Mat>();
int recoginzeResult=plateDetect.plateDetect(src, matVector);
if (0 == recoginzeResult) {
CharsRecognise cr = new CharsRecognise();
for (int i = 0; i < matVector.size(); ++i) {
result = cr.charsRecognise(matVector.get(i));
System.out.println("Chars Recognised: " + result);
}
}else{
System.out.println(recoginzeResult);
}
return result;
}