我從opencv網站找到了這個代碼並試用了它。我得到了這個問題,在detectAndDisplay顯示錯誤說法不完全類型是不允許的,CascadeClassifier不是一個類型名稱,CvCapture是不確定的,等等...我該如何解決這些錯誤面部檢測解鎖門
#include "C:\opencv\build\include\opencv\objdetect.hpp"
#include "C:\opencv\build\include\opencv2\highgui.hpp"
#include "C:\opencv\build\include\opencv2\imgproc.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_alt.xml";
String eyes_cascade_name = "haarcascade_eye_tree_eyeglasses.xml";
CascadeClassifier face_cascade;
CascadeClassifier eyes_cascade;
string window_name = "Capture - Face detection";
RNG rng(12345);
/** @function main */
int main(int argc, const char** argv)
{
CvCapture* capture;
Mat frame;
//-- 1. Load the cascades
if(!face_cascade.load(face_cascade_name)){ printf("--(!)Error loading\n"); return -1; };
if(!eyes_cascade.load(eyes_cascade_name)){ printf("--(!)Error loading\n"); return -1; };
//-- 2. Read the video stream
capture = cvCaptureFromCAM(-1);
if(capture)
{
while(true)
{
frame = cvQueryFrame(capture);
//-- 3. Apply the classifier to the frame
if(!frame.empty())
{ detectAndDisplay(frame); }
else
{ printf(" --(!) No captured frame -- Break!"); break; }
int c = waitKey(10);
if((char)c == 'c') { break; }
}
}
return 0;
}
/** @function detectAndDisplay */
void detectAndDisplay(Mat frame)
{
std::vector<Rect> faces;
Mat frame_gray;
cvtColor(frame, frame_gray, CV_BGR2GRAY);
equalizeHist(frame_gray, frame_gray);
//-- Detect faces
face_cascade.detectMultiScale(frame_gray, faces, 1.1, 2, 0|CV_HAAR_SCALE_IMAGE, Size(30, 30));
for(size_t i = 0; i < faces.size(); i++)
{
Point center(faces[i].x + faces[i].width*0.5, faces[i].y + faces[i].height*0.5);
ellipse(frame, center, Size(faces[i].width*0.5, faces[i].height*0.5), 0, 0, 360, Scalar(255, 0, 255), 4, 8, 0);
Mat faceROI = frame_gray(faces[i]);
std::vector<Rect> eyes;
//-- In each face, detect eyes
eyes_cascade.detectMultiScale(faceROI, eyes, 1.1, 2, 0 |CV_HAAR_SCALE_IMAGE, Size(30, 30));
for(size_t j = 0; j < eyes.size(); j++)
{
Point center(faces[i].x + eyes[j].x + eyes[j].width*0.5, faces[i].y + eyes[j].y + eyes[j].height*0.5);
int radius = cvRound((eyes[j].width + eyes[j].height)*0.25);
circle(frame, center, radius, Scalar(255, 0, 0), 4, 8, 0);
}
}
//-- Show what you got
imshow(window_name, frame);
}
CascadeClassifier定義在哪裏? – doctorlove