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#include "trackhat.hpp"
#include <opencv2/imgproc.hpp>
#include "compat/math.hpp"
trackhat_preview::trackhat_preview(int w, int h)
{
frame_bgr.create(h, w, CV_8UC3);
frame_bgra.create(h, w, CV_8UC4);
}
void trackhat_preview::set_last_frame(const pt_frame& frame_)
{
center = {-1, -1};
points = frame_.as_const<trackhat_frame>()->points;
}
void trackhat_preview::draw_head_center(pt_pixel_pos_mixin::f x, pt_pixel_pos_mixin::f y)
{
center = {x, y};
}
QImage trackhat_preview::get_bitmap()
{
frame_bgr.setTo({0});
draw_points();
draw_center();
cv::cvtColor(frame_bgr, frame_bgra, cv::COLOR_BGR2BGRA);
return QImage((const unsigned char*) frame_bgra.data,
frame_bgra.cols, frame_bgra.rows,
(int)frame_bgra.step.p[0],
QImage::Format_ARGB32);
}
void trackhat_preview::draw_center()
{
if (center == numeric_types::vec2(-1, -1))
return;
auto [px_, py_] = to_pixel_pos(center[0], center[1], frame_bgr.cols, frame_bgr.rows);
int px = iround(px_), py = iround(py_);
const f dpi = (f)frame_bgr.cols / f(320);
constexpr int len_ = 9;
int len = iround(len_ * dpi);
static const cv::Scalar color(0, 255, 255);
cv::line(frame_bgr,
cv::Point(px - len, py),
cv::Point(px + len, py),
color, 1);
cv::line(frame_bgr,
cv::Point(px, py - len),
cv::Point(px, py + len),
color, 1);
}
void trackhat_preview::draw_points()
{
for (unsigned i = 0; i < std::size(points.m_point); i++)
{
const auto pt = points.m_point[i];
if (pt.m_brightness == 0)
continue;
constexpr f sz = trackhat_camera::sensor_size;
f x = std::clamp((f)pt.m_x, f(0), sz-1) * (f)frame_bgr.cols / sz,
y = std::clamp((f)pt.m_y, f(0), sz-1) * (f)frame_bgr.rows / sz;
const f dpi = (f)frame_bgr.cols / f(320);
int c = (int)pt.m_brightness;
constexpr int point_size = 6;
auto outline_color = i < 3 ? cv::Scalar{255, 255, 0} : cv::Scalar{192, 192, 192};
cv::circle(frame_bgr,
{iround(x*dpi), iround(y*dpi)},
iround(point_size * dpi),
outline_color,
iround(dpi), cv::LINE_AA);
cv::circle(frame_bgr,
{iround(x*dpi), iround(y*dpi)},
iround((point_size-2) * dpi),
cv::Scalar(c, c, c),
-1);
}
}
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