[ADD] detecting if hand is in square

src/computervision/HandPresentChecker.cpp

@@ -0,0 +1,18 @@
+#include "HandPresentChecker.h"
+#include <opencv2/imgproc.hpp>
+#include <iostream>
+
+
+namespace computervision
+{
+	bool check_if_hand_present(cv::Mat inputImage)
+	{
+		std::vector<std::vector<cv::Point>> points;
+		cv::Mat imgCont;
+		cv::findContours(inputImage, points, cv::RetrievalModes::RETR_LIST, cv::ContourApproximationModes::CHAIN_APPROX_SIMPLE);
+		bool hand_present = points.size() > 0;
+		std::cout << (hand_present ? "hey a hand!" : "damn no hand") << std::endl;
+		return hand_present;
+	}
+
+}

src/computervision/HandPresentChecker.h

@@ -0,0 +1,7 @@
+#pragma once
+
+#include <opencv2/core.hpp>
+namespace computervision
+{
+	bool check_if_hand_present(cv::Mat inputImage);
+}