Function main

example/opencv_histogram.cpp:183–230

}

int main( int argc, char** argv )
{
    // Get default device and setup context
    compute::device gpu = compute::system::default_device();
    compute::context context(gpu);
    compute::command_queue queue(context, gpu);

    cv::Mat src;

    // setup the command line arguments
    po::options_description desc;
    desc.add_options()
            ("help",  "show available options")
            ("image", po::value<std::string>(), "path to image file");

    // Parse the command lines
    po::variables_map vm;
    po::store(po::parse_command_line(argc, argv, desc), vm);
    po::notify(vm);

    //check the command line arguments
    if(vm.count("help"))
    {
        std::cout << desc << std::endl;
        return 0;
    }

    //check for image paths
    if(vm.count("image"))
    {
        // Read image with OpenCV
        src = cv::imread(vm["image"].as<std::string>(),
                                       CV_LOAD_IMAGE_COLOR);
        if(!src.data){
            std::cerr << "Failed to load image" << std::endl;
            return -1;
        }
        calculateHistogramUsingCL(src, queue);
        cv::imshow("Image", src);
        cv::waitKey(0);
    }
    else
    {
        std::cout << desc << std::endl;
        return 0;
    }
    return 0;
}