clean up main.cpp

CMakeLists.txt

@@ -9,6 +9,6 @@ find_package( glm REQUIRED )
 find_package( FreeGLUT REQUIRED )
 include_directories( ${OpenCV_INCLUDE_DIRS} )
 include_directories( ${PROJECT_SOURCE_DIR}/src )
-add_executable( fc2d src/main.cpp src/graphics.cpp src/modelpart.cpp )
+add_executable( fc2d src/main.cpp src/graphics.cpp src/modelpart.cpp src/cv.cpp )
 target_link_libraries( fc2d ${OpenCV_LIBS} -lOpenGL -lglut -lGLEW )
 set( CMAKE_BUILD_TYPE Debug )

src/cv.cpp

@@ -0,0 +1,83 @@
+#include <opencv2/opencv.hpp>
+#include <opencv2/face.hpp>
+
+#include <graphics.hpp>
+
+cv::Ptr<cv::face::Facemark> facemark;
+cv::CascadeClassifier faceDetector;
+cv::VideoCapture vid;
+cv::Mat frame, gray, small;
+
+void initCV() {
+	//TODO: switch to DNN face detection
+	faceDetector = cv::CascadeClassifier ("haarcascade_frontalface_alt2.xml");
+
+	facemark = cv::face::FacemarkLBF::create();
+	facemark->loadModel ("lbfmodel.yaml");
+
+	vid = cv::VideoCapture (0);
+}
+
+//process image and send controls to graphics
+void cvFrame() {
+	vid.read(frame);
+
+	cv::cvtColor (frame, gray, cv::COLOR_BGR2GRAY);
+	//downsample image for face detection, works too slow on full res
+	cv::pyrDown (gray, small);
+	cv::pyrDown (small, small);
+
+	std::vector<cv::Rect> faces;
+	faceDetector.detectMultiScale(small, faces);
+
+	//get biggest face
+	int biggestFace = 0;
+	int biggestArea = 0;
+	for (int i = 0; i < faces.size(); i++) {
+		//convert face region to full res, because we perform facemark on full res
+		faces[i] = cv::Rect (faces[i].x * 4, faces[i].y * 4, faces[i].width * 4, faces[i].height * 4);
+
+		int iArea = faces[i].area();
+		if (iArea > biggestArea) {
+			biggestFace = i;
+			biggestArea = iArea;
+		}
+
+		cv::rectangle (frame, faces[i], cv::Scalar (255, 255, 0));
+	}
+
+	std::vector<std::vector<cv::Point2f>> landmarks;
+
+	if (facemark->fit (frame, faces, landmarks)) {
+		//for (int i = 0; i < landmarks[biggestFace].size(); i++) {
+		//	cv::circle (frame, landmarks[biggestFace][i], 2, cv::Scalar (255, 255, 255));
+		//}
+		cv::circle(frame, cv::Point2f(
+			(landmarks[biggestFace][2].x + landmarks[biggestFace][14].x) / 2,
+			(landmarks[biggestFace][2].y + landmarks[biggestFace][14].y) / 2
+					), 6, cv::Scalar(0, 0, 255));
+		cv::circle (frame, landmarks[biggestFace][30], 6, cv::Scalar (0, 255, 255));
+		cv::circle (frame, landmarks[biggestFace][66], 3, cv::Scalar (0, 255, 0));
+		cv::circle (frame, landmarks[biggestFace][62], 3, cv::Scalar (0, 255, 0));
+
+		//send control information to graphics
+		float faceSize = landmarks[biggestFace][14].x - landmarks[biggestFace][2].x;
+		updateModel(glm::vec2(
+			(landmarks[biggestFace][2].x + landmarks[biggestFace][14].x) / 2
+				* 2 / (float)frame.cols - 1,
+			(landmarks[biggestFace][2].y + landmarks[biggestFace][14].y) / 2
+				* 2 / (float)frame.rows - 1
+			),
+			glm::vec2(
+			landmarks[biggestFace][30].x * 2 / (float)frame.cols - 1,
+			landmarks[biggestFace][30].y * 2 / (float)frame.rows - 1
+			),
+			faceSize * 6 / (float)frame.cols,
+			(landmarks[biggestFace][66].y - landmarks[biggestFace][62].y) / faceSize > 0.04f);
+	}
+}
+
+void cvShowFrame() {
+	cv::imshow("Video Input", frame);
+	cv::waitKey(32);
+}

src/cv.hpp

@@ -0,0 +1,10 @@
+#ifndef CV_HPP
+#define CV_HPP
+
+void initCV();
+
+void cvFrame();
+
+void cvShowFrame();
+
+#endif

src/main.cpp

@@ -1,81 +1,17 @@
-#include <opencv2/opencv.hpp>
-#include <opencv2/face.hpp>
-
 #include <graphics.hpp>
+#include <cv.hpp>
 
 #include <iostream>
 
 int main () {
 	initGraphics();
+	initCV();
 
-	//TODO: switch to DNN face detection
+	while (true) {
-	cv::CascadeClassifier faceDetector ("haarcascade_frontalface_alt2.xml");
+		cvFrame();
-
-	cv::Ptr<cv::face::Facemark> facemark = cv::face::FacemarkLBF::create();
-	facemark->loadModel ("lbfmodel.yaml");
-
-	cv::VideoCapture vid (0);
-	
-	cv::Mat frame, gray, small;
-
-	while (vid.read(frame)) {
-		cv::cvtColor (frame, gray, cv::COLOR_BGR2GRAY);
-		//downsample image for face detection, works too slow on full res
-		cv::pyrDown (gray, small);
-		cv::pyrDown (small, small);
-
-		std::vector<cv::Rect> faces;
-		faceDetector.detectMultiScale(small, faces);
-
-		//get biggest face
-		int biggestFace = 0;
-		int biggestArea = 0;
-		for (int i = 0; i < faces.size(); i++) {
-			//convert face region to full res, because we perform facemark on full res
-			faces[i] = cv::Rect (faces[i].x * 4, faces[i].y * 4, faces[i].width * 4, faces[i].height * 4);
-
-			int iArea = faces[i].area();
-			if (iArea > biggestArea) {
-				biggestFace = i;
-				biggestArea = iArea;
-			}
-
-			cv::rectangle (frame, faces[i], cv::Scalar (255, 255, 0));
-		}
-
-		std::vector<std::vector<cv::Point2f>> landmarks;
-
-		if (facemark->fit (frame, faces, landmarks)) {
-			//for (int i = 0; i < landmarks[biggestFace].size(); i++) {
-			//	cv::circle (frame, landmarks[biggestFace][i], 2, cv::Scalar (255, 255, 255));
-			//}
-			cv::circle(frame, cv::Point2f(
-				(landmarks[biggestFace][2].x + landmarks[biggestFace][14].x) / 2,
-				(landmarks[biggestFace][2].y + landmarks[biggestFace][14].y) / 2
-						), 6, cv::Scalar(0, 0, 255));
-			cv::circle (frame, landmarks[biggestFace][30], 6, cv::Scalar (0, 255, 255));
-			cv::circle (frame, landmarks[biggestFace][66], 3, cv::Scalar (0, 255, 0));
-			cv::circle (frame, landmarks[biggestFace][62], 3, cv::Scalar (0, 255, 0));
-
-			//send control information to graphics
-			float faceSize = landmarks[biggestFace][14].x - landmarks[biggestFace][2].x;
-			updateModel(glm::vec2(
-				(landmarks[biggestFace][2].x + landmarks[biggestFace][14].x) / 2
-					* 2 / (float)frame.cols - 1,
-				(landmarks[biggestFace][2].y + landmarks[biggestFace][14].y) / 2
-					* 2 / (float)frame.rows - 1
-				),
-				glm::vec2(
-				landmarks[biggestFace][30].x * 2 / (float)frame.cols - 1,
-				landmarks[biggestFace][30].y * 2 / (float)frame.rows - 1
-				),
-				faceSize * 6 / (float)frame.cols,
-				(landmarks[biggestFace][66].y - landmarks[biggestFace][62].y) / faceSize > 0.04f);
-		}
 
 		graphicsFrame();
 
-		cv::imshow ("Video Input", frame);
+		cvShowFrame();
-		cv::waitKey (33);
 	}
 }