hi all, i have codes like below:#include "opencv2/objdetect/objdetect.hpp"
include "opencv2/highgui/highgui.hpp"
include "opencv2/core/core.hpp"
include "opencv2/imgproc/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( "D:/Visual Studio 2010/Projects/newfaceDetection/haarcascade_frontalface_alt.xml" ) ){ printf("--(!)Error loading\n"); return -1; } if( !eyes_cascade.load( "D:/Visual Studio 2010/Projects/newfaceDetection/haarcascade_eye_tree_eyeglasses.xml" ) ){ printf("--(!)Error loading\n"); return -1; }
frame=imread("d:/1.jpg"); imshow( "test image", frame ); if( !frame.empty() ) { detectAndDisplay( frame ); } cvWaitKey(0);
return 0; }
/** @function detectAndDisplay */ void detectAndDisplay( Mat frame ) { std::vector<rect> faces; //Mat 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(40, 40) );
for( int i = 0; i < faces.size(); i++ ) { Point center( faces[i].x + faces[i].width0.5, faces[i].y + faces[i].height0.5 ); ellipse( frame, center, Size( faces[i].width0.5, faces[i].height0.5), 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( int 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 ); }
after i run the codes i get ( First-chance exception at 0x0fd761cf in newfaceDetection.exe: 0xC0000005: Access violation writing location 0x00000000. Unhandled exception at 0x0fd761cf in newfaceDetection.exe: 0xC0000005: Access violation writing location 0x00000000. ) if I do comment ( face_cascade.detectMultiScale( frame_gray, faces, 1.1, 2, 0|CV_HAAR_SCALE_IMAGE, Size(40, 40) ); ) the program is run without any error but the face detection doesn't work, it shows only image
what do i do? i study many resource like questions in here but I dont take any result yet. please help me , thanks in advance