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POOverlay Image in OpenCV
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copied!<p>I am trying to overlay an image over the video capture of my program with OpenCV but I am having trouble getting it to work. I set the a region of interest in the original frame taken from the webcam in the form of a rectangle. Then i copy it to the original frame. However it never shows up on the new frame captured by the webcam. I tested it and the image is loading correctly but it is not being copied to the new frame for some reason. </p> <p>Code Below in C++: </p> <pre><code>#include<opencv2/core/core.hpp> #include<opencv2/contrib/contrib.hpp> #include<opencv2/highgui/highgui.hpp> #include<opencv2/imgproc/imgproc.hpp> #include<iostream> #include<vector> using namespace std; using namespace cv; int main(){ VideoCapture cap; cap.open(0); if(!cap.isOpened()){ cerr << "Error opening the webcam!" << endl; return -1; } for(;;){ Mat frame; cap>>frame; Mat newFrame; frame.copyTo(newFrame); Mat image = imread("C:\\User\\Desktop\\images\\image.png"); int cx = (newFrame.cols - 70) / 2; if (image.data) { // Get a BGR version of the face, since the output is BGR color Mat srcBGR = Mat(face.size(), CV_8UC3); cvtColor(image, srcBGR, CV_GRAY2BGR); // Get the destination ROI (and make sure it is within the image) Rect dstRC = Rect(cx, newFrame.rows/2, 70, 70); Mat dstROI = newFrame(dstRC); // Copy the pixels from src to dst. srcBGR.copyTo(dstROI); } imshow("frame", newFrame); char key = (char) waitKey(30); // Exit this loop on escape: if(key == 27) break; } return 0; } </code></pre> <p>Any suggestions or help would be appreciated. Thanks.</p>

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