Declaring Variables in Header Files
I'm trying to write a wrapper for multiple opencv-cameras, but I get an error: ‘VideoCapture’ in namespace ‘cv’ does not name a type
. I am assuming this is because I am not declaring cv::VideoCapture left
and cv::VideoCapture right
correct in the header file?
stereo.h:
#ifndef _GUARD_STEREO_GUARD_
#define _GUARD_STEREO_GUARD_
#include "cv.h"
class Stereo {
public:
Stereo(int, int);
cv::Mat getLeft();
cv::Mat getRight();
private:
cv::VideoCapture left;
cv::VideoCapture right;
};
#endif
Stereo.cpp:
#include "cv.h"
#include <iostream>
#include "stereo.h"
using namespace cv;
Stereo::Stereo(int leftId, int rightId) {
left = VideoCapture(leftId);
right = VideoCapture(rightId);
if (!left.opened() || !right.opened()) {
std::cerr << "Could not open camera!" << std::endl;
}
}
Mat Stereo::getLeft() {
Mat frame;
left >> frame;
return frame;
}
Mat Stereo::getRight() {
Mat frame;
right >> frame;
return frame;
}
I can, however, use successfully VideoCapture like this
:
cv::VideoCapture capLeft; // open the Left camera
cv::VideoCapture capRight; // open the Right camera
capLeft = cv::VideoCapture(0);
capRight = cv::VideoCapture(1);
+3
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