我一直在openCV中尝试objectDetection ..
走了几步。。
- 将其调整为 64x64 分辨率
- 将其更改为灰度
- 获取用于对象检测的 XML
- 绘制边缘图案的矩形
然而,我无法实现它..
这是我的代码:
#include<iostream>
#include "cv.h"
#include "highgui.h"
#include<vector>
using namespace cv;
using namespace std;
int main()
{
IplImage* img;
img = cvLoadImage( "hindi3.jpg" );
vector<cv::Rect> objects;
// ***Resize image to 64x64 resolution***
IplImage *resizeImage = cvCreateImage(cvSize(64,64),8,3);
cvResize(img,resizeImage,CV_INTER_LINEAR);
cvShowImage("Resize",resizeImage);
cvWaitKey(0);
// ***Convert image to grayscale***
IplImage *grayImage = cvCreateImage(cvGetSize(resizeImage),8,1);
cvCvtColor(resizeImage,grayImage,CV_BGR2GRAY);
cvShowImage("gray",grayImage);
cvWaitKey(0);
// ***Getting the XML (Cascade xml generated thru haarTraining)***
CvMemStorage* storage = cvCreateMemStorage(0);
cout<<"Memory created\n";
cv::CascadeClassifier cascade;
cascade.load("cascade.xml");
//CvHaarClassifierCascade* cascade = (CvHaarClassifierCascade*)cvLoad( "cascade.xml" );
cout<<"cascade.xml loaded successfully\n";
double scale = 1.3;
static CvScalar colors[] = { {{0,0,255}}, {{0,128,255}}, {{0,255,255}},
{{0,255,0}}, {{255,128,0}}, {{255,255,0}}, {{255,0,0}}, {{255,0,255}} };
// ***Detect objects***
cvClearMemStorage( storage );
objects.clear();
//CvSeq* objects = cvHaarDetectObjects( grayImage, cascade, storage, 1.1, 4, 0, cvSize( 40, 50 ));
//cascade.detectMultiScale(grayImage, objects, 1.2, 4, CV_HAAR_DO_CANNY_PRUNING, cvSize(30, 30));
cascade.detectMultiScale(grayImage, objects, 1.2, 4, CV_HAAR_SCALE_IMAGE, cvSize(30, 30));
// ***Draw a rectangle outside recognized pattern***
cout<<"Object size : "<<objects.size();
for( vector<cv::Rect>::const_iterator r = objects.begin(); r != objects.end(); r++)
{ //rectangle(img, *r, Scalar(0,0,255), 2, 8, 0);
cvRectangle( grayImage, cvPoint( r->x, r->y ), cvPoint( r->x + r->width, r->y + r->height ),Scalar(0,0,255));
cout<<"In the loop\n";
}
cvNamedWindow( "Output" );
cvShowImage( "Output", grayImage );
cvWaitKey(0);
cvReleaseImage(&resizeImage);
cvReleaseImage(&grayImage);
cvReleaseImage( &img );
return 0;
}
不幸的是,我打印的对象大小显示为 0 :( 因此,它不会进入 for 循环.. 任何人都可以帮助我..
提前致谢
PS:我在代码中注释了一些没有用的行。请让我知道我是否可以合并。