#include<opencv2\opencv.hpp>
#include <iostream>
#include <stdio.h>
using namespace std;
using namespace cv;
/** Function Headers */
void
detectAndDisplay(Mat frame);
/** Global variables */
String face_cascade_name =
"haarcascade_frontalface_default.xml"
;
String eyes_cascade_name =
"haarcascade_eye_tree_eyeglasses.xml"
;
CascadeClassifier face_cascade;
//定义人脸分类器
CascadeClassifier eyes_cascade;
//定义人眼分类器
String window_name =
"Capture - Face detection"
;
/** @function main */
int
main(
void
)
{
Mat frame = imread(
"2.jpg"
);
//VideoCapture capture;
//Mat frame;
//-- 1. Load the cascades
if
(!face_cascade.load(face_cascade_name)){ printf(
"--(!)Error loading face cascade\n"
);
return
-
1
; };
if
(!eyes_cascade.load(eyes_cascade_name)){ printf(
"--(!)Error loading eyes cascade\n"
);
return
-
1
; };
//-- 2. Read the video stream
//capture.open(0);
//if (!capture.isOpened()) { printf("--(!)Error opening video capture\n"); return -1; }
//while (capture.read(frame))
//{
// if (frame.empty())
// {
// printf(" --(!) No captured frame -- Break!");
// break;
// }
//-- 3. Apply the classifier to the frame
detectAndDisplay(frame);
int
c = waitKey(
0
);
if
((
char
)c ==
27
) {
return
0
; }
// escape
//}
return
0
;
}
/** @function detectAndDisplay */
void
detectAndDisplay(Mat frame)
{
std::vector<rect> faces;
Mat frame_gray;
cvtColor(frame, frame_gray, COLOR_BGR2GRAY);
equalizeHist(frame_gray, frame_gray);
//-- Detect faces
face_cascade.detectMultiScale(frame_gray, faces,
1.1
,
3
, CV_HAAR_DO_ROUGH_SEARCH, Size(
70
,
70
),Size(
100
,
100
));
for
(size_t i =
0
; i < faces.size(); i++)
{
//Point center(faces[i].x + faces[i].width / 2, faces[i].y + faces[i].height / 2);
//ellipse(frame, center, Size(faces[i].width / 2, faces[i].height / 2), 0, 0, 360, Scalar(255, 0, 255), 4, 8, 0);
rectangle(frame, faces[i],Scalar(
255
,
0
,
0
),
2
,
8
,
0
);
Mat faceROI = frame_gray(faces[i]);
std::vector<rect> eyes;
//-- In each face, detect eyes
eyes_cascade.detectMultiScale(faceROI, eyes,
1.1
,
1
, CV_HAAR_DO_ROUGH_SEARCH, Size(
3
,
3
));
for
(size_t j =
0
; j < eyes.size(); j++)
{
Rect rect(faces[i].x + eyes[j].x, faces[i].y + eyes[j].y, eyes[j].width, eyes[j].height);
//Point eye_center(faces[i].x + eyes[j].x + eyes[j].width / 2, faces[i].y + eyes[j].y + eyes[j].height / 2);
//int radius = cvRound((eyes[j].width + eyes[j].height)*0.25);
//circle(frame, eye_center, radius, Scalar(255, 0, 0), 4, 8, 0);
rectangle(frame, rect, Scalar(
0
,
255
,
0
),
2
,
8
,
0
);
}
}
//-- Show what you got
namedWindow(window_name,
2
);
imshow(window_name, frame);
}</rect></rect></stdio.h></iostream></opencv2\opencv.hpp>
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