opencvはHomebrewで入れる際にffmpgオプションをenableしておく
あとcudaオプションも入れといた→cudaは自分のMBPで使えないから要らない
main.cpp
#include <opencv2/core/core.hpp> #include <opencv2/highgui/highgui.hpp> #include <opencv2/imgproc/imgproc.hpp> #include <iostream> using namespace cv; using namespace std; int main(int argc, char* argv[]) { VideoCapture cap; // cap.open("http://192.168.1.130:8080/?action=stream&ignored.mjpg"); if (!cap.isOpened()) // if not success, exit program { cout << "Cannot open the video cam" << endl; return -1; } double dWidth = cap.get(CV_CAP_PROP_FRAME_WIDTH); //get the width of frames of the video double dHeight = cap.get(CV_CAP_PROP_FRAME_HEIGHT); //get the height of frames of the video cout << "Frame size : " << dWidth << " x " << dHeight << endl; namedWindow("MyVideo",CV_WINDOW_AUTOSIZE); //create a window called "MyVideo" namedWindow("MyNegativeVideo",CV_WINDOW_AUTOSIZE); while (1) { Mat frame; Mat contours; bool bSuccess = cap.read(frame); // read a new frame from video if (!bSuccess) //if not success, break loop { cout << "Cannot read a frame from video stream" << endl; break; } flip(frame, frame, 1); imshow("MyVideo", frame); //show the frame in "MyVideo" window Canny(frame, contours, 500, 1000, 5, true); imshow("MyNegativeVideo", contours); if (waitKey(30) == 27) //wait for 'esc' key press for 30ms. If 'esc' key is pressed, break loop { cout << "esc key is pressed by user" << endl; break; } } return 0; }
CC = g++ FLAGS = `pkg-config opencv --cflags --libs` all: $(CC) $(FLAGS) main.cpp