老问题,至于解决方案网上有很多,在这里我直接贴出我自己解决问题的办法,并且通过测试,需要的同学可以直接拿来使用,参考。
静态库中使用MFC或者动态库中使用MFC都可以正常使用。
CString strFilePath = sdf.OpenFile();
if (strFilePath.GetLength())
{
cv::Mat mSrc = imread(sdf.CString2Char(strFilePath), CV_LOAD_IMAGE_GRAYSCALE);
#ifdef _AFXDLL
std::vector<std::vector<cv::Point>> contours;
std::vector<cv::Vec4i> hierarchy;
#else
std::vector<Mat> contours(10000);
std::vector<Vec4i> hierarchy(10000);
#endif // _AFXDLL
cv::findContours(mSrc, contours, hierarchy, CV_RETR_TREE, CV_CHAIN_APPROX_SIMPLE, Point(0, 0));
for (int i = 0; i < contours.size(); ++i)
{
CString strContent;
#ifdef _AFXDLL
for (int j = 0; j < contours[i].size(); ++j)
{
strContent += "x=" + sdf.Int2Cstring(contours[i][j].x) + " y=" + sdf.Int2Cstring(contours[i][j].x) + " || ";
}
#else
//如果使用mat作为参数
for (int n = 0; n < contours[i].rows; ++n)
{
uchar* data = contours[i].ptr<uchar>(n);
for (int m = 0; m < contours[i].cols; ++m)
{
int da = data[m];
strContent += sdf.Int2Cstring(da) + " | ";
}
}
#endif // _AFXDLL
cv::Rect rect = boundingRect(contours[i]);
cv::Mat mCanvas = cv::Mat::zeros(cv::Size(mSrc.cols, mSrc.rows), CV_8UC3);
cv::putText(mCanvas, sdf.CString2Char(strContent), cv::Point(rect.x, rect.y), FONT_HERSHEY_PLAIN, 1.0, cv::Scalar(0,255,0));
drawContours(mCanvas, contours, i, Scalar(0,0,255), 1);
imshow("contour", mCanvas);
waitKey();
MessageBox(strContent, "轮廓坐标!", MB_ICONINFORMATION);
}
}