img_util.cpp
1.42 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
#include "img_util.h"
#include "opencv2/opencv.hpp"
namespace common {
bool isInPolygon(const sy_point* point_array, int point_count, const sy_point& center) {
std::vector<cv::Point> polygon;
for (size_t i = 0; i < point_count; i++)
{
polygon.push_back(cv::Point(point_array[i].x_, point_array[i].y_));
}
if (polygon.size() <= 0)
{
return false;
}
// 定义一个点
cv::Point pt(center.x_, center.y_);
// 使用pointPolygonTest函数判断点是否在多边形内
double sign = cv::pointPolygonTest(polygon, pt, false);
if (sign > 0)
{
return true;
}
return false;
}
void save_result(int height, int width, sy_point* point_array, int point_count, std::vector<sy_point> vec_pt) {
cv::Mat image = cv::Mat::zeros(height, width, CV_8UC3);
// 定义一个多边形的顶点数组（例如一个五边形）
std::vector<cv::Point> polyPoints;
for (size_t i = 0; i < point_count; i++)
{
polyPoints.push_back(cv::Point(point_array[i].x_, point_array[i].y_));
}
// 绘制多边形边界，颜色为绿色，线宽 2
const cv::Point* pts = &polyPoints[0];
int npts = (int)polyPoints.size();
cv::polylines(image, &pts, &npts, 1, true, cv::Scalar(0, 255, 0), 2);
for (size_t i = 0; i < vec_pt.size(); i++)
{
cv::circle(image, cv::Point(vec_pt[i].x_, vec_pt[i].y_), 2, cv::Scalar(0, 255, 255), -1);
}
cv::imwrite("gahter.jpg", image);
}
}