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#include "tracker-easy-api.h"
#include "cv/numeric.hpp"
using namespace numeric_types;
pt_runtime_traits::pt_runtime_traits() = default;
pt_runtime_traits::~pt_runtime_traits() = default;
pt_point_extractor::pt_point_extractor() = default;
pt_point_extractor::~pt_point_extractor() = default;
f pt_point_extractor::threshold_radius_value(int w, int h, int threshold)
{
f cx = w / f{640}, cy = h / f{480};
const f min_radius = f{1.75} * cx;
const f max_radius = f{15} * cy;
const f radius = std::fmax(f{0}, (max_radius-min_radius) * threshold / f(255) + min_radius);
return radius;
}
std::tuple<f, f> Coordinates::to_pixel_pos(f x, f y, int w, int h)
{
return std::make_tuple(w*(x+f{.5}), f{.5}*(h - 2*y*w));
}
std::tuple<f, f> Coordinates::to_screen_pos(f px, f py, int w, int h)
{
px *= w/(w-f{1}); py *= h/(h-f{1});
return std::make_tuple((px - w/f{2})/w, -(py - h/f{2})/w);
}
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