I am trying to mess around with multi-threading and OpenCV so I wrote the following program.
void performSearch(Mat& original, Mat& grey, Mat& result)
{
// do stuff
waitKey();
}
int main()
{
thread(performSearch, ref(image), ref(image_grey), ref(answer)).join();
}
Obviously, this program will throw an `NSInternalInconsistencyException` exception because `waitKey()` needs to be run on the main thread. My question is, how do I *attach* it to the main thread?
I have an iOS background and with grand central dispatch, I'd simply have to do something along the lines of:
DispatchQueue.main.async // this gets me the main queue asynchronously
{
// update UI
}
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