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Hey! What’s up? I am making a program in C++ with Opencv and when running appears the error below
This is the error that is occurring without Try-catch
This is the error occurring with Try-catch
int detectEye(Mat& im, Mat& tpl, Rect& rect)
{
vector<cv::Rect> faces, eyes;
face_cascade.detectMultiScale(im, faces, 1.1, 2,
CV_HAAR_SCALE_IMAGE, cv::Size(30, 30));
for (int i = 0; i < faces.size(); i++)
{
Mat face = im(faces[i]);
eyes_cascade.detectMultiScale(face, eyes, 1.1, 2,
CV_HAAR_SCALE_IMAGE, Size(20, 20));
if (eyes.size())
{
rect = eyes[0] + Point(faces[i].x, faces[i].y);
tpl = im(rect);
}
}
return eyes.size();
}
I went to debug and he threw the exception in this excerpt: face_cascade.detectMultiScale(im, faces, 1.1, 2, CV_HAAR_SCALE_IMAGE, cv::Size(30, 30));
Debug screen
Any additional information is just ask. Thanks in advance.
I have had similar problems when Opencv libraries were not compiled correctly according to the version of Visual Studio or OS architecture (32 or 64 bits). From the log it looks like you are using VS 2012, but the tag indicates VS 2013. Are you sure you have installed the right libraries? One way to check if everything is ok is to compile and run some of Opencv’s simple tutorials.
– Luiz Vieira
Another thing that may be happening is an error in booting your Cache. You have not posted the code that initializes the
face_cascade, but there you reference an xml file with the trained Cascade (by vc, or one already available in Opencv). If this file is not found, the initialization returns an error indicator. And if this error is ignored, it can also generate exceptions in later use (as perhaps your case). Worth checking this too.– Luiz Vieira
Thank you! I will check this and post a reply later!
– HDeiro
And then, the problem was the same or not? It would be important to have a reference here, to ideally help other people in the future, no?
– Luiz Vieira
Check if you are loading the cascade correctly from the disk (face_cascade), because in the code snippet you passed does not appear the part that does this procedure. The error points to this. Example: face_cascade = Cascadeclassifier("/path/to/cascade.xml");
– AndersonBS