I want to use OpenCV's Canny edge detector, such as is outlined in [this question][1]. For example: cv::Canny(image,contours,10,350); However, I wish to not only get the final thresholded image out, but I also wish to get the detected edge angle at each pixel. Is this possible in OpenCV? [1]: https://stackoverflow.com/questions/11987483/opencvs-canny-edge-detection-in-c