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我使用從OpenCV的用於臉部檢測的樣品夾下面的代碼在視頻：人臉檢測樣品與OpenCV的2.4.2 +的Visual Studio 2012 +視窗7（64位）的異常
#include "stdafx.h"
#include "opencv2/objdetect/objdetect.hpp"
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/imgproc/imgproc.hpp"
#include <iostream>
using namespace std;
using namespace cv;
/** Function Headers */
void detectAndDisplay(Mat frame);
/** Global variables */
String face_cascade_name = "lbpcascade_frontalface.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 cascade
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(0);
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, Size(80, 80));
for(int i = 0; i < faces.size(); i++)
{
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));
if(eyes.size() == 2)
{
//-- Draw the face
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, 0), 2, 8, 0);
for(int j = 0; j < eyes.size(); j++)
{ //-- Draw the eyes
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, 255), 3, 8, 0);
}
}
}
//-- Show what you got
imshow(window_name, frame);
}
我有OpenCV 2.4.2在我的電腦上正常工作，因爲我試過其他簡單的例子，它們工作正常。但是，當我嘗試這個代碼時，它的構建很好。然而，當我運行它，我得到一個異常未處理的錯誤：
Unhandled exception at 0x000007FEEF848158 (opencv_objdetect242.dll) in OpenCVTest2.exe: 0xC0000005: Access violation reading location 0x0000000000000010.
我試圖步入由一行行的代碼，當我站上罰球線外被調用：
if(!eyes_cascade.load(eyes_cascade_name)){ printf("--(!)Error loading\n"); return -1; };
我在我的Visual Studio項目中包含了xml分類器文件。
我做錯了什麼？或者這是一個在Windows as mentioned in some of the comments to this question上使用面部檢測樣本的問題？