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我正在使用OpenCV 2.3製作簡單的網絡攝像頭程序,並被運行時錯誤卡住了。任何想法將不勝感激。運行在cvCopyImage/cvResize時崩潰
編譯通行證,但運行後,我得到以下錯誤(在cvCopyImage/cvResize在下面的代碼中的'讀'功能)。
錯誤:
OpenCV Error: Bad argument (Unknown array type) in cvarrToMat, file /usr/local/src/OpenCV/OpenCV-2.3.0/modules/core/src/matrix.cpp, line 641
terminate called after throwing an instance of 'cv::Exception'
what(): /usr/local/src/OpenCV/OpenCV-2.3.0/modules/core/src/matrix.cpp:641: error: (-5) Unknown array type in function cvarrToMat
代碼摘錄:
#include <iostream>
#include "opencv2/highgui/highgui.hpp"
#include "opencv2/core/core.hpp"
#include "opencv2/imgproc/imgproc.hpp"
using namespace std;
using namespace cv;
Mat* SampleClassA::dispImg = NULL;
int read()
{
Mat* sharedImg;
sharedImg = getFrame();
if (sharedImg)
{
if (dispImg == NULL)
{
SampleClassA::dispImg = sharedImg;
}
cvCopyImage(sharedImg, SampleClassA::dispImg); // Crashes here.
cvResize(sharedImg, SampleClassA::classifyImg); // Can crash here too when cvCopyImage is commented out.
}
sleep(100);
return 1;
}
Mat* getFrame()
//IplImage* ReadRealTime::getFrame()
{
if (!capture.isOpened()) // Actual capturing part is omitted here.
{
return NULL;
}
Mat frame;
capture >> frame;
return &frame;
}
</code>
我的猜測是有一些錯誤無論/無論是在我用墊,或指針的方式。對於OpenCV和C/C++指針,我仍然是新手(我在另一個問題Can't save an image captured from webcam (imwrite compile error with OpenCV 2.3)中提出了一個有見地的評論,指出可能的「懸掛指針」,但是這次是相同的?)。