From c0bbdde8bafef5c92a3b4a53571c7f29e90eb8c5 Mon Sep 17 00:00:00 2001 From: Nghia Ho Date: Wed, 31 Jul 2013 23:43:25 +1000 Subject: [PATCH] Added test cpp --- modules/imgproc/test/test_intersection.cpp | 499 +++++++++++++++++++++++++++++ 1 file changed, 499 insertions(+) create mode 100644 modules/imgproc/test/test_intersection.cpp diff --git a/modules/imgproc/test/test_intersection.cpp b/modules/imgproc/test/test_intersection.cpp new file mode 100644 index 0000000..3a53d6f --- /dev/null +++ b/modules/imgproc/test/test_intersection.cpp @@ -0,0 +1,499 @@ +/*M/////////////////////////////////////////////////////////////////////////////////////// +// +// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING. +// +// By downloading, copying, installing or using the software you agree to this license. +// If you do not agree to this license, do not download, install, +// copy or use the software. +// +// +// License Agreement +// For Open Source Computer Vision Library +// +// Copyright (C) 2000-2008, Intel Corporation, all rights reserved. +// Copyright (C) 2008-2011, Willow Garage Inc., all rights reserved. +// Third party copyrights are property of their respective owners. +// +// @Authors +// Nghia Ho, nghiaho12@yahoo.com +// +// Redistribution and use in source and binary forms, with or without modification, +// are permitted provided that the following conditions are met: +// +// * Redistribution's of source code must retain the above copyright notice, +// this list of conditions and the following disclaimer. +// +// * Redistribution's in binary form must reproduce the above copyright notice, +// this list of conditions and the following disclaimer in the documentation +// and/or other materials provided with the distribution. +// +// * The name of OpenCV Foundation may not be used to endorse or promote products +// derived from this software without specific prior written permission. +// +// This software is provided by the copyright holders and contributors "as is" and +// any express or implied warranties, including, but not limited to, the implied +// warranties of merchantability and fitness for a particular purpose are disclaimed. +// In no event shall the OpenCV Foundation or contributors be liable for any direct, +// indirect, incidental, special, exemplary, or consequential damages +// (including, but not limited to, procurement of substitute goods or services; +// loss of use, data, or profits; or business interruption) however caused +// and on any theory of liability, whether in contract, strict liability, +// or tort (including negligence or otherwise) arising in any way out of +// the use of this software, even if advised of the possibility of such damage. +// +//M*/ + +#include "test_precomp.hpp" + +using namespace cv; +using namespace std; + +#define ACCURACY 0.00001 + +class CV_RotatedRectangleIntersectionTest: public cvtest::ArrayTest +{ +public: + +protected: + void run (int); + +private: + void test1(); + void test2(); + void test3(); + void test4(); + void test5(); + void test6(); + void test7(); + void test8(); + void test9(); +}; + +void CV_RotatedRectangleIntersectionTest::run(int) +{ + // See pics/intersection.png for the scenarios we are testing + + // Test the following scenarios: + // 1 - no intersection + // 2 - partial intersection, rectangle translated + // 3 - partial intersection, rectangle rotated 45 degree on the corner, forms a triangle intersection + // 4 - full intersection, rectangles of same size directly on top of each other + // 5 - partial intersection, rectangle on top rotated 45 degrees + // 6 - partial intersection, rectangle on top of different size + // 7 - full intersection, rectangle fully enclosed in the other + // 8 - partial intersection, rectangle corner just touching. point contact + // 9 - partial intersetion. rectangle side by side, line contact + + test1(); + test2(); + test3(); + test4(); + test5(); + test6(); + test7(); + test8(); + test9(); +} + +void CV_RotatedRectangleIntersectionTest::test1() +{ + // no intersection + + RotatedRect rect1, rect2; + + rect1.center.x = 0; + rect1.center.y = 0; + rect1.size.width = 2; + rect1.size.height = 2; + rect1.angle = 12.0f; + + rect2.center.x = 10; + rect2.center.y = 10; + rect2.size.width = 2; + rect2.size.height = 2; + rect2.angle = 34.0f; + + vector vertices; + + int ret = rotatedRectangleIntersection(rect1, rect2, vertices); + + CV_Assert(ret == INTERSECT_NONE); + CV_Assert(vertices.empty()); +} + +void CV_RotatedRectangleIntersectionTest::test2() +{ + // partial intersection, rectangles translated + + RotatedRect rect1, rect2; + + rect1.center.x = 0; + rect1.center.y = 0; + rect1.size.width = 2; + rect1.size.height = 2; + rect1.angle = 0; + + rect2.center.x = 1; + rect2.center.y = 1; + rect2.size.width = 2; + rect2.size.height = 2; + rect2.angle = 0; + + vector vertices; + + int ret = rotatedRectangleIntersection(rect1, rect2, vertices); + + CV_Assert(ret == INTERSECT_PARTIAL); + CV_Assert(vertices.size() == 4); + + vector possibleVertices(4); + + possibleVertices[0] = Point2f(0.0f, 0.0f); + possibleVertices[1] = Point2f(1.0f, 1.0f); + possibleVertices[2] = Point2f(0.0f, 1.0f); + possibleVertices[3] = Point2f(1.0f, 0.0f); + + for( size_t i = 0; i < vertices.size(); i++ ) + { + double bestR = DBL_MAX; + + for( size_t j = 0; j < possibleVertices.size(); j++ ) + { + double dx = vertices[i].x - possibleVertices[j].x; + double dy = vertices[i].y - possibleVertices[j].y; + double r = sqrt(dx*dx + dy*dy); + + bestR = std::min(bestR, r); + } + + CV_Assert(bestR < ACCURACY); + } +} + +void CV_RotatedRectangleIntersectionTest::test3() +{ + // partial intersection, rectangles rotated 45 degree on the corner, forms a triangle intersection + RotatedRect rect1, rect2; + + rect1.center.x = 0; + rect1.center.y = 0; + rect1.size.width = 2; + rect1.size.height = 2; + rect1.angle = 0; + + rect2.center.x = 1; + rect2.center.y = 1; + rect2.size.width = sqrt(2.0f); + rect2.size.height = 20; + rect2.angle = 45.0f; + + vector vertices; + + int ret = rotatedRectangleIntersection(rect1, rect2, vertices); + + CV_Assert(ret == INTERSECT_PARTIAL); + CV_Assert(vertices.size() == 3); + + vector possibleVertices(3); + + possibleVertices[0] = Point2f(1.0f, 1.0f); + possibleVertices[1] = Point2f(0.0f, 1.0f); + possibleVertices[2] = Point2f(1.0f, 0.0f); + + for( size_t i = 0; i < vertices.size(); i++ ) + { + double bestR = DBL_MAX; + + for( size_t j = 0; j < possibleVertices.size(); j++ ) + { + double dx = vertices[i].x - possibleVertices[j].x; + double dy = vertices[i].y - possibleVertices[j].y; + double r = sqrt(dx*dx + dy*dy); + + bestR = std::min(bestR, r); + } + + CV_Assert(bestR < ACCURACY); + } +} + +void CV_RotatedRectangleIntersectionTest::test4() +{ + // full intersection, rectangles of same size directly on top of each other + + RotatedRect rect1, rect2; + + rect1.center.x = 0; + rect1.center.y = 0; + rect1.size.width = 2; + rect1.size.height = 2; + rect1.angle = 0; + + rect2.center.x = 0; + rect2.center.y = 0; + rect2.size.width = 2; + rect2.size.height = 2; + rect2.angle = 0; + + vector vertices; + + int ret = rotatedRectangleIntersection(rect1, rect2, vertices); + + CV_Assert(ret == INTERSECT_FULL); + CV_Assert(vertices.size() == 4); + + vector possibleVertices(4); + + possibleVertices[0] = Point2f(-1.0f, 1.0f); + possibleVertices[1] = Point2f(1.0f, -1.0f); + possibleVertices[2] = Point2f(-1.0f, -1.0f); + possibleVertices[3] = Point2f(1.0f, 1.0f); + + for( size_t i = 0; i < vertices.size(); i++ ) + { + double bestR = DBL_MAX; + + for( size_t j = 0; j < possibleVertices.size(); j++ ) + { + double dx = vertices[i].x - possibleVertices[j].x; + double dy = vertices[i].y - possibleVertices[j].y; + double r = sqrt(dx*dx + dy*dy); + + bestR = std::min(bestR, r); + } + + CV_Assert(bestR < ACCURACY); + } +} + +void CV_RotatedRectangleIntersectionTest::test5() +{ + // partial intersection, rectangle on top rotated 45 degrees + + RotatedRect rect1, rect2; + + rect1.center.x = 0; + rect1.center.y = 0; + rect1.size.width = 2; + rect1.size.height = 2; + rect1.angle = 0; + + rect2.center.x = 0; + rect2.center.y = 0; + rect2.size.width = 2; + rect2.size.height = 2; + rect2.angle = 45.0f; + + vector vertices; + + int ret = rotatedRectangleIntersection(rect1, rect2, vertices); + + CV_Assert(ret == INTERSECT_PARTIAL); + CV_Assert(vertices.size() == 8); + + vector possibleVertices(8); + + possibleVertices[0] = Point2f(-1.0f, -0.414214f); + possibleVertices[1] = Point2f(-1.0f, 0.414214f); + possibleVertices[2] = Point2f(-0.414214f, -1.0f); + possibleVertices[3] = Point2f(0.414214f, -1.0f); + possibleVertices[4] = Point2f(1.0f, -0.414214f); + possibleVertices[5] = Point2f(1.0f, 0.414214f); + possibleVertices[6] = Point2f(0.414214f, 1.0f); + possibleVertices[7] = Point2f(-0.414214f, 1.0f); + + for( size_t i = 0; i < vertices.size(); i++ ) + { + double bestR = DBL_MAX; + + for( size_t j = 0; j < possibleVertices.size(); j++ ) + { + double dx = vertices[i].x - possibleVertices[j].x; + double dy = vertices[i].y - possibleVertices[j].y; + double r = sqrt(dx*dx + dy*dy); + + bestR = std::min(bestR, r); + } + + CV_Assert(bestR < ACCURACY); + } +} + +void CV_RotatedRectangleIntersectionTest::test6() +{ + // 6 - partial intersection, rectangle on top of different size + + RotatedRect rect1, rect2; + + rect1.center.x = 0; + rect1.center.y = 0; + rect1.size.width = 2; + rect1.size.height = 2; + rect1.angle = 0; + + rect2.center.x = 0; + rect2.center.y = 0; + rect2.size.width = 2; + rect2.size.height = 10; + rect2.angle = 0; + + vector vertices; + + int ret = rotatedRectangleIntersection(rect1, rect2, vertices); + + CV_Assert(ret == INTERSECT_PARTIAL); + CV_Assert(vertices.size() == 4); + + vector possibleVertices(4); + + possibleVertices[0] = Point2f(1.0f, 1.0f); + possibleVertices[1] = Point2f(1.0f, -1.0f); + possibleVertices[2] = Point2f(-1.0f, -1.0f); + possibleVertices[3] = Point2f(-1.0f, 1.0f); + + for( size_t i = 0; i < vertices.size(); i++ ) + { + double bestR = DBL_MAX; + + for( size_t j = 0; j < possibleVertices.size(); j++ ) + { + double dx = vertices[i].x - possibleVertices[j].x; + double dy = vertices[i].y - possibleVertices[j].y; + double r = sqrt(dx*dx + dy*dy); + + bestR = std::min(bestR, r); + } + + CV_Assert(bestR < ACCURACY); + } +} + +void CV_RotatedRectangleIntersectionTest::test7() +{ + // full intersection, rectangle fully enclosed in the other + + RotatedRect rect1, rect2; + + rect1.center.x = 0; + rect1.center.y = 0; + rect1.size.width = 12.34; + rect1.size.height = 56.78; + rect1.angle = 0; + + rect2.center.x = 0; + rect2.center.y = 0; + rect2.size.width = 2; + rect2.size.height = 2; + rect2.angle = 0; + + vector vertices; + + int ret = rotatedRectangleIntersection(rect1, rect2, vertices); + + CV_Assert(ret == INTERSECT_FULL); + CV_Assert(vertices.size() == 4); + + vector possibleVertices(4); + + possibleVertices[0] = Point2f(1.0f, 1.0f); + possibleVertices[1] = Point2f(1.0f, -1.0f); + possibleVertices[2] = Point2f(-1.0f, -1.0f); + possibleVertices[3] = Point2f(-1.0f, 1.0f); + + for( size_t i = 0; i < vertices.size(); i++ ) + { + double bestR = DBL_MAX; + + for( size_t j = 0; j < possibleVertices.size(); j++ ) + { + double dx = vertices[i].x - possibleVertices[j].x; + double dy = vertices[i].y - possibleVertices[j].y; + double r = sqrt(dx*dx + dy*dy); + + bestR = std::min(bestR, r); + } + + CV_Assert(bestR < ACCURACY); + } +} + +void CV_RotatedRectangleIntersectionTest::test8() +{ + // full intersection, rectangle fully enclosed in the other + + RotatedRect rect1, rect2; + + rect1.center.x = 0; + rect1.center.y = 0; + rect1.size.width = 2; + rect1.size.height = 2; + rect1.angle = 0; + + rect2.center.x = 2; + rect2.center.y = 2; + rect2.size.width = 2; + rect2.size.height = 2; + rect2.angle = 0; + + vector vertices; + + int ret = rotatedRectangleIntersection(rect1, rect2, vertices); + + CV_Assert(ret == INTERSECT_PARTIAL); + CV_Assert(vertices.size() == 1); + + double dx = vertices[0].x - 1; + double dy = vertices[0].y - 1; + double r = sqrt(dx*dx + dy*dy); + + CV_Assert(r < ACCURACY); +} + +void CV_RotatedRectangleIntersectionTest::test9() +{ + // full intersection, rectangle fully enclosed in the other + + RotatedRect rect1, rect2; + + rect1.center.x = 0; + rect1.center.y = 0; + rect1.size.width = 2; + rect1.size.height = 2; + rect1.angle = 0; + + rect2.center.x = 2; + rect2.center.y = 0; + rect2.size.width = 2; + rect2.size.height = 123.45; + rect2.angle = 0; + + vector vertices; + + int ret = rotatedRectangleIntersection(rect1, rect2, vertices); + + CV_Assert(ret == INTERSECT_PARTIAL); + CV_Assert(vertices.size() == 2); + + vector possibleVertices(2); + + possibleVertices[0] = Point2f(1.0f, 1.0f); + possibleVertices[1] = Point2f(1.0f, -1.0f); + + for( size_t i = 0; i < vertices.size(); i++ ) + { + double bestR = DBL_MAX; + + for( size_t j = 0; j < possibleVertices.size(); j++ ) + { + double dx = vertices[i].x - possibleVertices[j].x; + double dy = vertices[i].y - possibleVertices[j].y; + double r = sqrt(dx*dx + dy*dy); + + bestR = std::min(bestR, r); + } + + CV_Assert(bestR < ACCURACY); + } +} + +TEST (Imgproc_RotatedRectangleIntersection, accuracy) { CV_RotatedRectangleIntersectionTest test; test.safe_run(); } -- 2.7.4