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我试图运行OpenCV的文档中的一个例子如下OpenCV和MinGW的运行时错误?
#include <iostream>
#include <opencv2\core\core.hpp>
#include <opencv2\highgui\highgui.hpp>
#include <opencv\cv.h>
int main(int argc, char **argv)
{
cv::VideoCapture cap(0);
if (!cap.isOpened())
{
std::cout << "Error with opening Camera" << std::endl;
return -1;
}
cv::Mat frame, edges;
cv::namedWindow("edges", 1);
for(;;)
{
cap >> frame;
cvtColor(frame, edges, CV_BGR2GRAY);
GaussianBlur(edges, edges, cv::Size(7,7), 1.5, 1.5);
Canny(edges, edges, 0, 30, 3);
cv::imshow("edges", edges);
if (cv::waitKey(30) >= 0) break;
}
return 0;
}
我有if statement
检查,如果有什么毛病相机,它应该终止程序,但这情况并非如此。这是我得到
OpenCV Error: Assertion failed (scn == 3 || scn == 4) in cvtColor, file C:\opencv_2_4_8\opencv\sources\modules\imgproc\src\color.cpp, line 3737
terminate called after throwing an instance of 'cv::Exception'
what(): C:\opencv_2_4_8\opencv\sources\modules\imgproc\src\color.cpp:3737: error: (-215) scn == 3 || scn == 4 in function cvtColor
This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.
实际上是因为凸轮存在问题,所以显示灰色图像。我确实禁用了凸轮,而且它的工作原理并不是我的意思是if语句。感谢您的建议。 – CroCo