如何在 OpenCV 中将多个图像作为命令行参数加载到 sprintf() 和 cvLoadImage() ...?
How to load multiple images as command line arguments to sprintf() and cvLoadImage() in OpenCV...?
这是我的代码。它将检测图像中的人脸并在人脸周围绘制矩形。
CvHaarClassifierCascade *cascade;
CvMemStorage *storage;
void detectFaces (IplImage *newframe);
int key;
int iImg;
int Num_Images=20;
int main( int argc, char** argv )
{
string filename = M:/Trend/FaceDetection/MyCascadeFolder/haarcascade_frontalface_alt2.xml";
storage = cvCreateMemStorage(0) ;
cascade = ( CvHaarClassifierCascade* )cvLoad( filename.c_str());
**//to load a single image**
**IplImage* inImage = cvLoadImage("M:/Trend/FaceDetection775/MyImages/face1.jpg",1);**
//IplImage* inImage = cvLoadImage(argv[1],1); >> It also works fine through command line
detectFaces( inImage );
cvShowImage("FaceDetection2",inImage);
cvSaveImage("M:/FaceDetection/MyImages/OpImages/faces.jpg",inImage);
cvReleaseImage( &inImage);
// **to load no. of images or a complete folder**
char buf[20];
for(iImg=0; iImg<=Num_Images; iImg++)
{
**sprintf(buf, "M:/FaceDetection/ImagesFolder/P%04d.jpg", iImg);**
*// sprintf(buf, argv[2], iImg); // I Tried with this., but its not working*
printf("\n");
inImage = cvLoadImage(buf, CV_LOAD_IMAGE_UNCHANGED);
printf("Input Image = P%04d.jpg\n", iImg);
detectFaces( inImage );
cvShowImage("FaceDetection",inImage);
cvReleaseImage( &inImage );
key= cvWaitKey(0);
if ( key == 'q' || key == 'Q' )
return(0);
}
cvReleaseHaarClassifierCascade( &cascade );
cvReleaseMemStorage( &storage );
return 0;
}
**// the actual detectfaces() function goes like this**
void detectFaces( IplImage *newframe)
{
CvSeq *faces = cvHaarDetectObjects( newframe, cascade, storage, 1.15, 5, 0, cvSize( 30, 30 ) );
for( int i = 0 ; i < ( faces ? faces->total : 0 ) ; i++ )
{
CvRect *r = ( CvRect *)cvGetSeqElem( faces, i );
cvRectangle(newframe,cvPoint( r->x, r->y ),cvPoint( r->x + r->width, r->y + r->height ),CV_RGB( 0, 255, 0 ), 2, 8, 0 );
}
}
在这里,sprintf() 方法正在静态拍摄多张图像(在程序本身内)。但我想通过命令行参数将这些多个图像作为单个文件夹传递。
我尝试使用 cvLoadImage() 函数,但它也只需要一个图像而不是一个文件夹作为输入。
此外,我无法计算它为图像中的每张脸绘制的矩形数量。我该怎么做...?
请在这方面帮助我。
我正在为我的学术研究人脸检测项目 "www.MahdiRezaei.com",我正在使用 visual studio-2010 和 C、C++ 和 OpenCV。
提前致谢。
您可以更改以下代码以将其与参数一起使用。
#include<Windows.h>
#include<iostream>
#include<opencv2\highgui\highgui.hpp>
using namespace cv;
using namespace std;
int main()
{
WIN32_FIND_DATA data;
HANDLE h = FindFirstFile(L"c:\Images\*.*", &data); // first file is the current directory
FindNextFile(h, &data); //second file is the parent directory
vector<Mat> Images;
if (h != INVALID_HANDLE_VALUE)
{
while (FindNextFile(h, &data))
{
string filename = data.cFileName;
sprintf(filename, "%s%s","C:\Images\", filename.c_str());
Images.push_back(imread(filename, 1));
delete[] nPtr;
}
}
else
cout << "Error: No such folder." << endl;
FindClose(h);
return 0;
}
这是我的代码。它将检测图像中的人脸并在人脸周围绘制矩形。
CvHaarClassifierCascade *cascade;
CvMemStorage *storage;
void detectFaces (IplImage *newframe);
int key;
int iImg;
int Num_Images=20;
int main( int argc, char** argv )
{
string filename = M:/Trend/FaceDetection/MyCascadeFolder/haarcascade_frontalface_alt2.xml";
storage = cvCreateMemStorage(0) ;
cascade = ( CvHaarClassifierCascade* )cvLoad( filename.c_str());
**//to load a single image**
**IplImage* inImage = cvLoadImage("M:/Trend/FaceDetection775/MyImages/face1.jpg",1);**
//IplImage* inImage = cvLoadImage(argv[1],1); >> It also works fine through command line
detectFaces( inImage );
cvShowImage("FaceDetection2",inImage);
cvSaveImage("M:/FaceDetection/MyImages/OpImages/faces.jpg",inImage);
cvReleaseImage( &inImage);
// **to load no. of images or a complete folder**
char buf[20];
for(iImg=0; iImg<=Num_Images; iImg++)
{
**sprintf(buf, "M:/FaceDetection/ImagesFolder/P%04d.jpg", iImg);**
*// sprintf(buf, argv[2], iImg); // I Tried with this., but its not working*
printf("\n");
inImage = cvLoadImage(buf, CV_LOAD_IMAGE_UNCHANGED);
printf("Input Image = P%04d.jpg\n", iImg);
detectFaces( inImage );
cvShowImage("FaceDetection",inImage);
cvReleaseImage( &inImage );
key= cvWaitKey(0);
if ( key == 'q' || key == 'Q' )
return(0);
}
cvReleaseHaarClassifierCascade( &cascade );
cvReleaseMemStorage( &storage );
return 0;
}
**// the actual detectfaces() function goes like this**
void detectFaces( IplImage *newframe)
{
CvSeq *faces = cvHaarDetectObjects( newframe, cascade, storage, 1.15, 5, 0, cvSize( 30, 30 ) );
for( int i = 0 ; i < ( faces ? faces->total : 0 ) ; i++ )
{
CvRect *r = ( CvRect *)cvGetSeqElem( faces, i );
cvRectangle(newframe,cvPoint( r->x, r->y ),cvPoint( r->x + r->width, r->y + r->height ),CV_RGB( 0, 255, 0 ), 2, 8, 0 );
}
}
在这里,sprintf() 方法正在静态拍摄多张图像(在程序本身内)。但我想通过命令行参数将这些多个图像作为单个文件夹传递。
我尝试使用 cvLoadImage() 函数,但它也只需要一个图像而不是一个文件夹作为输入。
此外,我无法计算它为图像中的每张脸绘制的矩形数量。我该怎么做...?
请在这方面帮助我。
我正在为我的学术研究人脸检测项目 "www.MahdiRezaei.com",我正在使用 visual studio-2010 和 C、C++ 和 OpenCV。
提前致谢。
您可以更改以下代码以将其与参数一起使用。
#include<Windows.h>
#include<iostream>
#include<opencv2\highgui\highgui.hpp>
using namespace cv;
using namespace std;
int main()
{
WIN32_FIND_DATA data;
HANDLE h = FindFirstFile(L"c:\Images\*.*", &data); // first file is the current directory
FindNextFile(h, &data); //second file is the parent directory
vector<Mat> Images;
if (h != INVALID_HANDLE_VALUE)
{
while (FindNextFile(h, &data))
{
string filename = data.cFileName;
sprintf(filename, "%s%s","C:\Images\", filename.c_str());
Images.push_back(imread(filename, 1));
delete[] nPtr;
}
}
else
cout << "Error: No such folder." << endl;
FindClose(h);
return 0;
}