mirror of
https://github.com/opencv/opencv.git
synced 2024-11-30 06:10:02 +08:00
71 lines
2.4 KiB
C++
71 lines
2.4 KiB
C++
|
// This file is part of OpenCV project.
|
||
|
|
// It is subject to the license terms in the LICENSE file found in the top-level directory
|
||
|
|
// of this distribution and at http://opencv.org/license.html.
|
||
|
|
//
|
||
|
|
// Copyright (C) 2016, Itseez, Inc, all rights reserved.
|
||
|
|
|
||
|
|
#include "test_precomp.hpp"
|
||
|
|
#include <vector>
|
||
|
|
#include <cmath>
|
||
|
|
|
||
|
|
using namespace cv;
|
||
|
|
using namespace std;
|
||
|
|
|
||
|
|
// return true if point lies inside ellipse
|
||
|
|
static bool check_pt_in_ellipse(const Point2f& pt, const RotatedRect& el) {
|
||
|
|
Point2f to_pt = pt - el.center;
|
||
|
|
double pt_angle = atan2(to_pt.y, to_pt.x);
|
||
|
|
double el_angle = el.angle * CV_PI / 180;
|
||
|
|
double x_dist = 0.5 * el.size.width * cos(pt_angle + el_angle);
|
||
|
|
double y_dist = 0.5 * el.size.height * sin(pt_angle + el_angle);
|
||
|
|
double el_dist = sqrt(x_dist * x_dist + y_dist * y_dist);
|
||
|
|
return norm(to_pt) < el_dist;
|
||
|
|
}
|
||
|
|
|
||
|
|
// Return true if mass center of fitted points lies inside ellipse
|
||
|
|
static bool fit_and_check_ellipse(const vector<Point2f>& pts) {
|
||
|
|
RotatedRect ellipse = fitEllipse(pts);
|
||
|
|
|
||
|
|
Point2f mass_center;
|
||
|
|
for (size_t i = 0; i < pts.size(); i++) {
|
||
|
|
mass_center += pts[i];
|
||
|
|
}
|
||
|
|
mass_center /= (float)pts.size();
|
||
|
|
|
||
|
|
return check_pt_in_ellipse(mass_center, ellipse);
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST(Imgproc_FitEllipse_Issue_4515, DISABLED_accuracy) {
|
||
|
|
vector<Point2f> pts;
|
||
|
|
pts.push_back(Point2f(327, 317));
|
||
|
|
pts.push_back(Point2f(328, 316));
|
||
|
|
pts.push_back(Point2f(329, 315));
|
||
|
|
pts.push_back(Point2f(330, 314));
|
||
|
|
pts.push_back(Point2f(331, 314));
|
||
|
|
pts.push_back(Point2f(332, 314));
|
||
|
|
pts.push_back(Point2f(333, 315));
|
||
|
|
pts.push_back(Point2f(333, 316));
|
||
|
|
pts.push_back(Point2f(333, 317));
|
||
|
|
pts.push_back(Point2f(333, 318));
|
||
|
|
pts.push_back(Point2f(333, 319));
|
||
|
|
pts.push_back(Point2f(333, 320));
|
||
|
|
|
||
|
|
EXPECT_TRUE(fit_and_check_ellipse(pts));
|
||
|
|
}
|
||
|
|
|
||
|
|
TEST(Imgproc_FitEllipse_Issue_6544, DISABLED_accuracy) {
|
||
|
|
vector<Point2f> pts;
|
||
|
|
pts.push_back(Point2f(924.784f, 764.160f));
|
||
|
|
pts.push_back(Point2f(928.388f, 615.903f));
|
||
|
|
pts.push_back(Point2f(847.4f, 888.014f));
|
||
|
|
pts.push_back(Point2f(929.406f, 741.675f));
|
||
|
|
pts.push_back(Point2f(904.564f, 825.605f));
|
||
|
|
pts.push_back(Point2f(926.742f, 760.746f));
|
||
|
|
pts.push_back(Point2f(863.479f, 873.406f));
|
||
|
|
pts.push_back(Point2f(910.987f, 808.863f));
|
||
|
|
pts.push_back(Point2f(929.145f, 744.976f));
|
||
|
|
pts.push_back(Point2f(917.474f, 791.823f));
|
||
|
|
|
||
|
|
EXPECT_TRUE(fit_and_check_ellipse(pts));
|
||
|
|
}
|