ocv_display.hpp

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#ifndef OCV_DISPLAY_HPP
#define OCV_DISPLAY_HPP
 
#include <opencv2/opencv.hpp>
#include "videocapture.hpp"
 
namespace sl_oc
{
 
namespace tools
{
 
void showImage( std::string name, cv::UMat& img, sl_oc::video::RESOLUTION res, bool change_name=true, std::string info="" )
{
    cv::UMat resized;
    switch(res)
    {
    default:
    case sl_oc::video::RESOLUTION::VGA:
        resized = img;
        break;
    case sl_oc::video::RESOLUTION::HD720:
        if(change_name) name += " [Resize factor 0.6]";
        cv::resize( img, resized, cv::Size(), 0.6, 0.6 );
        break;
    case sl_oc::video::RESOLUTION::HD1080:
    case sl_oc::video::RESOLUTION::HD2K:
        if(change_name) name += " [Resize factor 0.4]";
        cv::resize( img, resized, cv::Size(), 0.4, 0.4 );
        break;
    }
 
    if(!info.empty())
    {
        cv::putText( resized, info, cv::Point(20,40),cv::FONT_HERSHEY_SIMPLEX, 0.75,
                     cv::Scalar(100,100,100), 2);
    }
 
    cv::imshow( name, resized );
}
 
void showImage( std::string name, cv::Mat& img, sl_oc::video::RESOLUTION res, bool change_name=true, std::string info="" )
{
    cv::Mat resized;
    switch(res)
    {
    default:
    case sl_oc::video::RESOLUTION::VGA:
        resized = img;
        break;
    case sl_oc::video::RESOLUTION::HD720:
        if(change_name) name += " [Resize factor 0.6]";
        cv::resize( img, resized, cv::Size(), 0.6, 0.6 );
        break;
    case sl_oc::video::RESOLUTION::HD1080:
    case sl_oc::video::RESOLUTION::HD2K:
        if(change_name) name += " [Resize factor 0.4]";
        cv::resize( img, resized, cv::Size(), 0.4, 0.4 );
        break;
    }
 
    if(!info.empty())
    {
        cv::putText( resized, info, cv::Point(20,40),cv::FONT_HERSHEY_SIMPLEX, 0.75,
                     cv::Scalar(100,100,100), 2);
    }
 
    cv::imshow( name, resized );
}
 
} // namespace tools
} // namespace sl_oc
#endif // OCV_DISPLAY_HPP