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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 (const auto& pt : points)
{
if (pt.brightness == 0)
continue;
constexpr int sz = trackhat_camera::sensor_size;
constexpr f scaling_factor = 10;
const int x = pt.x * frame_bgr.cols / sz, y = pt.y * frame_bgr.rows / sz;
const f dpi = (f)frame_bgr.cols / f(320);
const int W = std::max(1, iround(pt.W * frame_bgr.cols * scaling_factor / sz)),
H = std::max(1, iround(pt.H * frame_bgr.rows * scaling_factor / sz));
const auto point_color = progn(double c = pt.brightness; return cv::Scalar{c, c, c};);
const auto outline_color = pt.ok
? cv::Scalar{255, 255, 0}
: cv::Scalar{192, 192, 192};
cv::ellipse(frame_bgr, {x, y}, {W, H},
0, 0, 360, point_color, -1, cv::LINE_AA);
cv::ellipse(frame_bgr, {x, y}, {iround(W + 2*dpi), iround(H + 2*dpi)},
0, 0, 360, outline_color, iround(dpi), cv::LINE_AA);
char buf[16];
std::snprintf(buf, sizeof(buf), "%dpx", pt.area);
auto text_color = pt.ok
? cv::Scalar(0, 0, 255)
: cv::Scalar(160, 160, 160);
const int offx = iround(W + 9*dpi), offy = H*3/2;
cv::putText(frame_bgr, buf, {x+offx, y+offy},
cv::FONT_HERSHEY_PLAIN, iround(dpi), text_color,
1);
}
}
void trackhat_frame::init_points(const trackHat_ExtendedPoints_t& points_, double min_size, double max_size)
{
trackHat_ExtendedPoints_t copy = points_;
points = {};
std::sort(std::begin(copy.m_point), std::end(copy.m_point),
[](trackHat_ExtendedPoint_t p1, trackHat_ExtendedPoint_t p2) {
return p1.m_averageBrightness > p2.m_averageBrightness;
});
unsigned i = 0;
for (const trackHat_ExtendedPoint_t& pt : copy.m_point)
{
if (pt.m_averageBrightness == 0)
continue;
point p = {};
if (pt.m_area >= min_size && pt.m_area <= max_size)
p.ok = true;
p.brightness = pt.m_averageBrightness;
p.area = pt.m_area;
p.W = std::max(1, pt.m_boundryRigth - pt.m_boundryLeft);
p.H = std::max(1, pt.m_boundryDown - pt.m_boundryUp);
p.x = trackhat_camera::sensor_size-1-pt.m_coordinateX;
p.y = pt.m_coordinateY;
points[i++] = p;
}
}
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