extensions.h

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#pragma once
 
#include <array>
#include <type_traits>
 
#include "opencv2/opencv.hpp"
 
 
namespace vs2 {
 
enum class BGR {
    BLUE = 0,
    GREEN = 1,
    RED = 2
};
 
template<typename t = uint16_t>
inline t operator~(BGR v) {
    static_assert(std::is_arithmetic<t>::value, "Template paramter (t) must be arithmetic type.");
    return static_cast<t>(v);
}
 
inline static std::array<std::array<uint16_t, 2>, 3> weights_map{
    std::array<uint16_t, 2>{~BGR::GREEN, ~BGR::RED},        // blue
    std::array<uint16_t, 2>{~BGR::BLUE, ~BGR::RED},     // green
    std::array<uint16_t, 2>{~BGR::BLUE, ~BGR::GREEN},   // red
};
 
 
 
} // namespace vs2
 
 
inline static const std::array<std::array<cv::Scalar, 3>, 3> markup_map{
    std::array<cv::Scalar, 3>{cv::Scalar(255, 0, 0), cv::Scalar(255, 127, 0), cv::Scalar(255, 255, 0)}, //blue
    std::array<cv::Scalar, 3>{cv::Scalar(0, 255, 0), cv::Scalar(0, 255, 127), cv::Scalar(0, 255, 255)}, //green
    std::array<cv::Scalar, 3>{cv::Scalar(0, 0, 255), cv::Scalar(127, 0, 255), cv::Scalar(255, 0, 255)}, //red
};