Hi everyone,
I'm writing a program that needs to capture from a webcam using opencv. I am using a Logitech C260 Camera and OpenCV2.2, Windows XP, QT Creator. Here is an example piece of my code:
int i = 0;
int arg = 0;
CvCapture *pCapturedImage = cvCaptureFromCAM(arg);
cvNamedWindow( "Example1", CV_WINDOW_AUTOSIZE );
IplImage* img1= cvQueryFrame(pCapturedImage);
IplImage* img2;
IplImage* merged;
int MAX_FRAMES = 10;
for (int i = 0; i < MAX_FRAMES; i++){
pCapturedImage = cvCaptureFromCAM(arg);
if (!pCapturedImage){
printf("Uh oh");
}
img1 = cvQueryFrame(pCapturedImage);
printf("Query");
cvShowImage( "Example1", img1 );
cvWaitKey(0);
}
for (int i = 0; i < MAX_FRAMES; i++){
printf("Enter");
img2 = img1;
pCapturedImage = cvCaptureFromCAM(arg);
if (!pCapturedImage){
printf("Uh oh");
}else
printf("Capture");
img1 = cvQueryFrame(pCapturedImage);
printf("Query");
cvShowImage( "Example1", img1 );
cvWaitKey(0);
img1 = mergePhotos(img2, img1, i*25, i*25);
printf("Merge");
cvShowImage( "Example1", img1 );
cvWaitKey(0);
}
It's not working though. I'm getting only a for around the first 10 captures, then after that, the capture becomes null. I'll try to add a picture.
I'm stumped. I've tried cvCaptureFromCAM and cvCreateCameraCapture. I've tried changing the args to that function. I've tried all my USB ports.
Does anybody know what the problem might be? I greatly appreciate all help.