Merge branch 'develop' into main

README.md

@@ -1,3 +1,5 @@
 # Lab1_PhotoPlethysmoGraphy
 
 The best implementation of PPG
+
+To note: the first push were made under the wrong username

makefile

@@ -1,7 +1,7 @@
 all: ppg
-	g++ ppg.o -o ppg.exe
+	g++ ppg.o -o ppg.exe -L/usr/lib/x86_64-linux-gnu/ -lopencv_stitching -lopencv_aruco -lopencv_bgsegm -lopencv_bioinspired -lopencv_ccalib -lopencv_dnn_objdetect -lopencv_dnn_superres -lopencv_dpm -lopencv_highgui -lopencv_face -lopencv_freetype -lopencv_fuzzy -lopencv_hdf -lopencv_hfs -lopencv_img_hash -lopencv_line_descriptor -lopencv_quality -lopencv_reg -lopencv_rgbd -lopencv_saliency -lopencv_shape -lopencv_stereo -lopencv_structured_light -lopencv_phase_unwrapping -lopencv_superres -lopencv_optflow -lopencv_surface_matching -lopencv_tracking -lopencv_datasets -lopencv_text -lopencv_dnn -lopencv_plot -lopencv_ml -lopencv_videostab -lopencv_videoio -lopencv_viz -lopencv_ximgproc -lopencv_video -lopencv_xobjdetect -lopencv_objdetect -lopencv_calib3d -lopencv_imgcodecs -lopencv_features2d -lopencv_flann -lopencv_xphoto -lopencv_photo -lopencv_imgproc -lopencv_core
 ppg: ppg.cpp
-	g++ -c ppg.cpp
+	g++ -c ppg.cpp -I/usr/include/opencv4/opencv -I/usr/include/opencv4
 clean:
 	rm *.o
 	rm *.exe

ppg.cpp

@@ -1,7 +1,66 @@
-#include <iostream>
-using namespace std;
+#include "opencv2/opencv.hpp"
+#include "opencv2/videoio.hpp"
+#include "opencv2/highgui.hpp"
 
-int main() {
-  cout << "Hello World!";
-  return 0;
+#include <iostream>
+
+const int FPS = 30;
+bool isDiscardData = true;
+int countDiscard = 0;
+const int DISCARD_DURATION = 5;
+
+int main() 
+{ 
+  cv::VideoCapture cap;
+  cap.open(0);
+  if (!cap.isOpened())
+  {
+    std::cerr << "[ERROR] Unable to open camera!" << std::endl;
+    return -2;
+  }
+  //If Haard Cascade not found: error
+  cv::CascadeClassifier faceDetector;
+	if( !faceDetector.load("./haarcascade_frontalface_alt.xml"))
+	{
+	std::cerr << "[ERROR] Unable to load face cascade" << std::endl;
+	return -1;
+	};
+  
+  while (true)
+	{
+		if (isDiscardData)
+		{
+			countDiscard++;
+			if (countDiscard == DISCARD_DURATION*FPS)
+				isDiscardData = false;
+		}
+		else
+		{
+			// create a matrix to store the image from the cam
+			cv::Mat frame;
+			// wait for a new frame from camera and store it into 'frame'
+			cap.read(frame);
+			// check if we succeeded
+			if (frame.empty())
+			{
+				std::cerr << "[ERROR] blank frame grabbed" << std::endl;
+				break;
+			}
+						
+			//Draw Rectangle around the face
+			std::vector<cv::Rect> faceRectangles;
+			faceDetector.detectMultiScale(frame, faceRectangles, 1.1, 3, 0,
+			cv::Size(20, 20));
+			cv::rectangle(frame, faceRectangles[0], cv::Scalar(0, 0, 255), 1, 1, 0);
+			//Reduce to ROI
+			cv::Rect foreheadROI;
+			foreheadROI = faceRectangles[0];
+			foreheadROI.height *= 0.5;
+			
+			cv::imshow("Your Face PLS", frame);
+			if (cv::waitKey(1000.0/FPS) >= 0)
+			break;
+		}
+	}
+	return 0;
 }