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3rdparty/opencv-4.5.4/modules/imgproc/test/test_intersectconvexconvex.cpp 8.82 KB
f4334277   Hu Chunming   提交3rdparty
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  // 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.
  
  #include "test_precomp.hpp"
  
  namespace opencv_test { namespace {
  
  
  TEST(Imgproc_IntersectConvexConvex, no_intersection)
  {
      std::vector<cv::Point> convex1;
      convex1.push_back(cv::Point(290, 126));
      convex1.push_back(cv::Point(284, 132));
      convex1.push_back(cv::Point(281, 133));
      convex1.push_back(cv::Point(256, 124));
      convex1.push_back(cv::Point(249, 116));
      convex1.push_back(cv::Point(234, 91));
      convex1.push_back(cv::Point(232, 86));
      convex1.push_back(cv::Point(232, 79));
      convex1.push_back(cv::Point(251, 69));
      convex1.push_back(cv::Point(257, 68));
      convex1.push_back(cv::Point(297, 85));
      convex1.push_back(cv::Point(299, 87));
  
      std::vector<cv::Point> convex2;
      convex2.push_back(cv::Point(192, 236));
      convex2.push_back(cv::Point(190, 245));
      convex2.push_back(cv::Point(177, 260));
      convex2.push_back(cv::Point(154, 271));
      convex2.push_back(cv::Point(142, 270));
      convex2.push_back(cv::Point(135, 263));
      convex2.push_back(cv::Point(131, 254));
      convex2.push_back(cv::Point(132, 240));
      convex2.push_back(cv::Point(172, 213));
      convex2.push_back(cv::Point(176, 216));
  
      std::vector<cv::Point> intersection;
      float area = cv::intersectConvexConvex(convex1, convex2, intersection);
  
      EXPECT_TRUE(intersection.empty());
      EXPECT_NEAR(area, 0, std::numeric_limits<float>::epsilon());
  }
  
  
  TEST(Imgproc_IntersectConvexConvex, no_intersection_with_1_vertex_on_edge_1)
  {
      std::vector<cv::Point> convex1;
      convex1.push_back(cv::Point(0,0));
      convex1.push_back(cv::Point(740, 0));
      convex1.push_back(cv::Point(740, 540));
      convex1.push_back(cv::Point(0, 540));
  
      std::vector<cv::Point> convex2;
      convex2.push_back(cv::Point(0, 210));
      convex2.push_back(cv::Point(-30, 210));
      convex2.push_back(cv::Point(-37, 170));
      convex2.push_back(cv::Point(-7, 172));
  
      std::vector<cv::Point> intersection;
      float area = cv::intersectConvexConvex(convex1, convex2, intersection);
  
      EXPECT_TRUE(intersection.empty());
      EXPECT_NEAR(area, 0, std::numeric_limits<float>::epsilon());
  }
  
  
  TEST(Imgproc_IntersectConvexConvex, no_intersection_with_1_vertex_on_edge_2)
  {
      std::vector<cv::Point> convex1;
      convex1.push_back(cv::Point(0,0));
      convex1.push_back(cv::Point(740, 0));
      convex1.push_back(cv::Point(740, 540));
      convex1.push_back(cv::Point(0, 540));
  
      std::vector<cv::Point> convex2;
      convex2.push_back(cv::Point(740, 210));
      convex2.push_back(cv::Point(750, 100));
      convex2.push_back(cv::Point(790, 250));
      convex2.push_back(cv::Point(800, 500));
  
      std::vector<cv::Point> intersection;
      float area = cv::intersectConvexConvex(convex1, convex2, intersection);
  
      EXPECT_TRUE(intersection.empty());
      EXPECT_NEAR(area, 0, std::numeric_limits<float>::epsilon());
  }
  
  
  TEST(Imgproc_IntersectConvexConvex, intersection_with_1_vertex_on_edge)
  {
      std::vector<cv::Point> convex1;
      convex1.push_back(cv::Point(0,0));
      convex1.push_back(cv::Point(740, 0));
      convex1.push_back(cv::Point(740, 540));
      convex1.push_back(cv::Point(0, 540));
  
      std::vector<cv::Point> convex2;
      convex2.push_back(cv::Point(30, 210));
      convex2.push_back(cv::Point(0,210));
      convex2.push_back(cv::Point(7, 172));
      convex2.push_back(cv::Point(37, 170));
  
      std::vector<cv::Point> intersection;
      float area = cv::intersectConvexConvex(convex1, convex2, intersection);
  
      std::vector<cv::Point> expected_intersection;
      expected_intersection.push_back(cv::Point(0, 210));
      expected_intersection.push_back(cv::Point(7, 172));
      expected_intersection.push_back(cv::Point(37, 170));
      expected_intersection.push_back(cv::Point(30, 210));
  
      EXPECT_EQ(intersection, expected_intersection);
      EXPECT_NEAR(area, 1163, std::numeric_limits<float>::epsilon());
  }
  
  
  TEST(Imgproc_IntersectConvexConvex, intersection_with_2_vertices_on_edge)
  {
      std::vector<cv::Point> convex1;
      convex1.push_back(cv::Point(0,0));
      convex1.push_back(cv::Point(740, 0));
      convex1.push_back(cv::Point(740, 540));
      convex1.push_back(cv::Point(0, 540));
  
      std::vector<cv::Point> convex2;
      convex2.push_back(cv::Point(30, 210));
      convex2.push_back(cv::Point(37, 170));
      convex2.push_back(cv::Point(0,210));
      convex2.push_back(cv::Point(0, 300));
  
      std::vector<cv::Point> intersection;
      float area = cv::intersectConvexConvex(convex1, convex2, intersection);
  
      std::vector<cv::Point> expected_intersection;
      expected_intersection.push_back(cv::Point(0, 300));
      expected_intersection.push_back(cv::Point(0, 210));
      expected_intersection.push_back(cv::Point(37, 170));
      expected_intersection.push_back(cv::Point(30, 210));
  
      EXPECT_EQ(intersection, expected_intersection);
      EXPECT_NEAR(area, 1950, std::numeric_limits<float>::epsilon());
  }
  
  
  TEST(Imgproc_IntersectConvexConvex, intersection_1)
  {
      std::vector<cv::Point> convex1;
      convex1.push_back(cv::Point(0,0));
      convex1.push_back(cv::Point(740, 0));
      convex1.push_back(cv::Point(740, 540));
      convex1.push_back(cv::Point(0, 540));
  
      std::vector<cv::Point> convex2;
      convex2.push_back(cv::Point(20,210));
      convex2.push_back(cv::Point(30, 210));
      convex2.push_back(cv::Point(37, 170));
      convex2.push_back(cv::Point(7, 172));
  
      std::vector<cv::Point> intersection;
      float area = cv::intersectConvexConvex(convex1, convex2, intersection);
  
      std::vector<cv::Point> expected_intersection;
      expected_intersection.push_back(cv::Point(7, 172));
      expected_intersection.push_back(cv::Point(37, 170));
      expected_intersection.push_back(cv::Point(30, 210));
      expected_intersection.push_back(cv::Point(20, 210));
  
      EXPECT_EQ(intersection, expected_intersection);
      EXPECT_NEAR(area, 783, std::numeric_limits<float>::epsilon());
  }
  
  
  TEST(Imgproc_IntersectConvexConvex, intersection_2)
  {
      std::vector<cv::Point> convex1;
      convex1.push_back(cv::Point(0,0));
      convex1.push_back(cv::Point(740, 0));
      convex1.push_back(cv::Point(740, 540));
      convex1.push_back(cv::Point(0, 540));
  
      std::vector<cv::Point> convex2;
      convex2.push_back(cv::Point(-2,210));
      convex2.push_back(cv::Point(-5, 300));
      convex2.push_back(cv::Point(37, 150));
      convex2.push_back(cv::Point(7, 172));
  
      std::vector<cv::Point> intersection;
      float area = cv::intersectConvexConvex(convex1, convex2, intersection);
  
      std::vector<cv::Point> expected_intersection;
      expected_intersection.push_back(cv::Point(0, 202));
      expected_intersection.push_back(cv::Point(7, 172));
      expected_intersection.push_back(cv::Point(37, 150));
      expected_intersection.push_back(cv::Point(0, 282));
  
      EXPECT_EQ(intersection, expected_intersection);
      EXPECT_NEAR(area, 1857.19836425781, std::numeric_limits<float>::epsilon());
  }
  
  
  TEST(Imgproc_IntersectConvexConvex, intersection_3)
  {
      std::vector<cv::Point> convex1;
      convex1.push_back(cv::Point(15, 0));
      convex1.push_back(cv::Point(740, 0));
      convex1.push_back(cv::Point(740, 540));
      convex1.push_back(cv::Point(15, 540));
  
      std::vector<cv::Point> convex2;
      convex2.push_back(cv::Point(0,210));
      convex2.push_back(cv::Point(30, 210));
      convex2.push_back(cv::Point(37, 170));
      convex2.push_back(cv::Point(7, 172));
  
      std::vector<cv::Point> intersection;
      float area = cv::intersectConvexConvex(convex1, convex2, intersection);
  
      std::vector<cv::Point> expected_intersection;
      expected_intersection.push_back(cv::Point(15, 171));
      expected_intersection.push_back(cv::Point(37, 170));
      expected_intersection.push_back(cv::Point(30, 210));
      expected_intersection.push_back(cv::Point(15, 210));
  
      EXPECT_EQ(intersection, expected_intersection);
  
      EXPECT_NEAR(area, 723.866760253906, std::numeric_limits<float>::epsilon());
  }
  
  
  TEST(Imgproc_IntersectConvexConvex, intersection_4)
  {
      std::vector<cv::Point> convex1;
      convex1.push_back(cv::Point(15, 0));
      convex1.push_back(cv::Point(740, 0));
      convex1.push_back(cv::Point(740, 540));
      convex1.push_back(cv::Point(15, 540));
  
      std::vector<cv::Point> convex2;
      convex2.push_back(cv::Point(15, 0));
      convex2.push_back(cv::Point(740, 0));
      convex2.push_back(cv::Point(740, 540));
      convex2.push_back(cv::Point(15, 540));
  
      std::vector<cv::Point> intersection;
      float area = cv::intersectConvexConvex(convex1, convex2, intersection);
  
      std::vector<cv::Point> expected_intersection;
      expected_intersection.push_back(cv::Point(15, 0));
      expected_intersection.push_back(cv::Point(740, 0));
      expected_intersection.push_back(cv::Point(740, 540));
      expected_intersection.push_back(cv::Point(15, 540));
  
      EXPECT_EQ(intersection, expected_intersection);
      EXPECT_NEAR(area, 391500, std::numeric_limits<float>::epsilon());
  }
  
  
  } // namespace
  } // opencv_test