Straight line detection using Hough transform

The detection of straight lines is important in many computer vision applications, like lane detection. It can also be used to detect lines that are part of other regular shapes. Hough transform is a popular feature extraction technique used in computer vision to detect straight lines.  We will not go into detail about how Hough transform detects lines, but we will see how it can be implemented in OpenCV and CUDA. The code for implementing Hough transform for line detection is as follows:

#include <cmath>#include <iostream>#include "opencv2/opencv.hpp"using namespace std;using namespace cv;using namespace cv::cuda;int main(){  Mat h_image = imread("images/drawing.JPG",0);  if (h_image.empty())

Get Hands-On GPU-Accelerated Computer Vision with OpenCV and CUDA now with O’Reilly online learning.

O’Reilly members experience live online training, plus books, videos, and digital content from 200+ publishers.