Created
September 18, 2017 10:49
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OpenCVでカメラから映像取ってhaar-likeで顔検出するテスト
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#include <opencv2/opencv.hpp> | |
using namespace std; | |
using namespace cv; | |
int main() { | |
VideoCapture cap(0); | |
if (!cap.isOpened()) { | |
return -1; | |
} | |
VideoWriter writer("frames.avi", CV_FOURCC_DEFAULT, 15.0, Size(640, 480)); | |
if (!writer.isOpened()) { | |
return -1; | |
} | |
cap.set(CAP_PROP_FPS, 15); | |
CascadeClassifier casc_face("haarcascade_frontalface_alt.xml"); | |
while (1) { | |
Mat frame; | |
cap >> frame; | |
Mat gray; | |
cvtColor(frame, gray, CV_BGR2GRAY); | |
vector<Rect> faces; | |
casc_face.detectMultiScale(gray, faces); | |
namedWindow("frame", WINDOW_AUTOSIZE); | |
for (int i = 0, n = faces.size(); i < n; i++) { | |
Rect face = faces[i]; | |
rectangle(frame, face, Scalar(255, 0, 0), 2); | |
} | |
imshow("frame", frame); | |
char key = waitKey(1); | |
if (key == 'q') { | |
break; | |
} | |
else if (key == 's') { | |
imwrite("frame.png", frame); | |
} | |
writer << frame; | |
} | |
destroyAllWindows(); | |
return 0; | |
} |
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