Machine Learning for OpenCV 4 - Second Edition

Writing your own OpenCV-based classifier in C++

Since OpenCV is one of those Python libraries that does not contain a single line of Python code under the hood (I'm kidding, but it's close), you will have to implement your custom estimator in C++. This can be done in four steps:

1. Implement a C++ source file that contains the main source code. You need to include two header files, one that contains all the core functionality of OpenCV (opencv.hpp) and another that contains the machine learning module (ml.hpp):

#include <opencv2/opencv.hpp>#include <opencv2/ml/ml.hpp>#include <stdio.h>

Then, an estimator class can be created by inheriting from the StatModel class:

class MyClass : public cv::ml::StatModel{    public:

Next, you define constructor ...