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我正在使用OpenCV 2.3制作简单的网络摄像头程序,并被运行时错误卡住了。任何想法将不胜感激。运行在cvCopyImage/cvResize时崩溃
编译通行证,但运行后,我得到以下错误(在cvCopyImage/cvResize在下面的代码中的'读'功能)。
错误:
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
代码摘录:
#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>
我的猜测是有一些错误无论/无论是在我用垫,或指针的方式。对于OpenCV和C/C++指针,我仍然是新手(我在另一个问题Can't save an image captured from webcam (imwrite compile error with OpenCV 2.3)中提出了一个有见地的评论,指出可能的“悬挂指针”,但是这次是相同的?)。