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406 lines
11 KiB
C++
406 lines
11 KiB
C++
// This file is part of OpenCV project.
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// It is subject to the license terms in the LICENSE file found in the top-level directory
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// of this distribution and at http://opencv.org/license.html.
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#include "test_precomp.hpp"
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namespace opencv_test { namespace {
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const Size img_size(640, 480);
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const int LSD_TEST_SEED = 0x134679;
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const int EPOCHS = 20;
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class LSDBase : public testing::Test
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{
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public:
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LSDBase() { }
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protected:
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Mat test_image;
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vector<Vec4f> lines;
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RNG rng;
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int passedtests;
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void GenerateWhiteNoise(Mat& image);
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void GenerateConstColor(Mat& image);
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void GenerateLines(Mat& image, const unsigned int numLines);
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void GenerateRotatedRect(Mat& image);
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virtual void SetUp();
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};
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class Imgproc_LSD_ADV: public LSDBase
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{
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public:
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Imgproc_LSD_ADV() { }
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protected:
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};
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class Imgproc_LSD_STD: public LSDBase
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{
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public:
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Imgproc_LSD_STD() { }
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protected:
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};
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class Imgproc_LSD_NONE: public LSDBase
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{
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public:
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Imgproc_LSD_NONE() { }
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protected:
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};
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class Imgproc_LSD_Common : public LSDBase
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{
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public:
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Imgproc_LSD_Common() { }
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protected:
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};
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void LSDBase::GenerateWhiteNoise(Mat& image)
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{
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image = Mat(img_size, CV_8UC1);
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rng.fill(image, RNG::UNIFORM, 0, 256);
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}
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void LSDBase::GenerateConstColor(Mat& image)
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{
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image = Mat(img_size, CV_8UC1, Scalar::all(rng.uniform(0, 256)));
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}
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void LSDBase::GenerateLines(Mat& image, const unsigned int numLines)
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{
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image = Mat(img_size, CV_8UC1, Scalar::all(rng.uniform(0, 128)));
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for(unsigned int i = 0; i < numLines; ++i)
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{
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int y = rng.uniform(10, img_size.width - 10);
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Point p1(y, 10);
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Point p2(y, img_size.height - 10);
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line(image, p1, p2, Scalar(255), 3);
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}
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}
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void LSDBase::GenerateRotatedRect(Mat& image)
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{
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image = Mat::zeros(img_size, CV_8UC1);
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Point center(rng.uniform(img_size.width/4, img_size.width*3/4),
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rng.uniform(img_size.height/4, img_size.height*3/4));
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Size rect_size(rng.uniform(img_size.width/8, img_size.width/6),
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rng.uniform(img_size.height/8, img_size.height/6));
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float angle = rng.uniform(0.f, 360.f);
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Point2f vertices[4];
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RotatedRect rRect = RotatedRect(center, rect_size, angle);
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rRect.points(vertices);
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for (int i = 0; i < 4; i++)
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{
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line(image, vertices[i], vertices[(i + 1) % 4], Scalar(255), 3);
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}
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}
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void LSDBase::SetUp()
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{
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lines.clear();
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test_image = Mat();
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rng = RNG(LSD_TEST_SEED);
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passedtests = 0;
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}
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TEST_F(Imgproc_LSD_ADV, whiteNoise)
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{
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for (int i = 0; i < EPOCHS; ++i)
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{
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GenerateWhiteNoise(test_image);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_ADV);
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detector->detect(test_image, lines);
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if(40u >= lines.size()) ++passedtests;
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}
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ASSERT_EQ(EPOCHS, passedtests);
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}
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TEST_F(Imgproc_LSD_ADV, constColor)
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{
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for (int i = 0; i < EPOCHS; ++i)
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{
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GenerateConstColor(test_image);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_ADV);
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detector->detect(test_image, lines);
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if(0u == lines.size()) ++passedtests;
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}
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ASSERT_EQ(EPOCHS, passedtests);
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}
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TEST_F(Imgproc_LSD_ADV, lines)
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{
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for (int i = 0; i < EPOCHS; ++i)
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{
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const unsigned int numOfLines = 1;
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GenerateLines(test_image, numOfLines);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_ADV);
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detector->detect(test_image, lines);
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if(numOfLines * 2 == lines.size()) ++passedtests; // * 2 because of Gibbs effect
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}
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ASSERT_EQ(EPOCHS, passedtests);
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}
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TEST_F(Imgproc_LSD_ADV, rotatedRect)
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{
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for (int i = 0; i < EPOCHS; ++i)
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{
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GenerateRotatedRect(test_image);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_ADV);
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detector->detect(test_image, lines);
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if(2u <= lines.size()) ++passedtests;
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}
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ASSERT_EQ(EPOCHS, passedtests);
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}
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TEST_F(Imgproc_LSD_STD, whiteNoise)
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{
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for (int i = 0; i < EPOCHS; ++i)
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{
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GenerateWhiteNoise(test_image);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_STD);
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detector->detect(test_image, lines);
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if(50u >= lines.size()) ++passedtests;
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}
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ASSERT_EQ(EPOCHS, passedtests);
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}
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TEST_F(Imgproc_LSD_STD, constColor)
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{
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for (int i = 0; i < EPOCHS; ++i)
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{
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GenerateConstColor(test_image);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_STD);
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detector->detect(test_image, lines);
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if(0u == lines.size()) ++passedtests;
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}
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ASSERT_EQ(EPOCHS, passedtests);
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}
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TEST_F(Imgproc_LSD_STD, lines)
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{
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for (int i = 0; i < EPOCHS; ++i)
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{
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const unsigned int numOfLines = 1;
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GenerateLines(test_image, numOfLines);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_STD);
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detector->detect(test_image, lines);
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if(numOfLines * 2 == lines.size()) ++passedtests; // * 2 because of Gibbs effect
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}
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ASSERT_EQ(EPOCHS, passedtests);
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}
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TEST_F(Imgproc_LSD_STD, rotatedRect)
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{
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for (int i = 0; i < EPOCHS; ++i)
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{
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GenerateRotatedRect(test_image);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_STD);
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detector->detect(test_image, lines);
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if(4u <= lines.size()) ++passedtests;
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}
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ASSERT_EQ(EPOCHS, passedtests);
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}
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TEST_F(Imgproc_LSD_NONE, whiteNoise)
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{
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for (int i = 0; i < EPOCHS; ++i)
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{
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GenerateWhiteNoise(test_image);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_NONE);
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detector->detect(test_image, lines);
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if(50u >= lines.size()) ++passedtests;
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}
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ASSERT_EQ(EPOCHS, passedtests);
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}
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TEST_F(Imgproc_LSD_NONE, constColor)
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{
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for (int i = 0; i < EPOCHS; ++i)
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{
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GenerateConstColor(test_image);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_NONE);
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detector->detect(test_image, lines);
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if(0u == lines.size()) ++passedtests;
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}
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ASSERT_EQ(EPOCHS, passedtests);
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}
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TEST_F(Imgproc_LSD_NONE, lines)
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{
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for (int i = 0; i < EPOCHS; ++i)
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{
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const unsigned int numOfLines = 1;
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GenerateLines(test_image, numOfLines);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_NONE);
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detector->detect(test_image, lines);
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if(numOfLines * 2 == lines.size()) ++passedtests; // * 2 because of Gibbs effect
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}
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ASSERT_EQ(EPOCHS, passedtests);
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}
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TEST_F(Imgproc_LSD_NONE, rotatedRect)
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{
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for (int i = 0; i < EPOCHS; ++i)
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{
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GenerateRotatedRect(test_image);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_NONE);
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detector->detect(test_image, lines);
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if(8u <= lines.size()) ++passedtests;
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}
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ASSERT_EQ(EPOCHS, passedtests);
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}
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TEST_F(Imgproc_LSD_Common, supportsVec4iResult)
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{
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for (int i = 0; i < EPOCHS; ++i)
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{
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GenerateWhiteNoise(test_image);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_STD);
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detector->detect(test_image, lines);
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std::vector<Vec4i> linesVec4i;
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detector->detect(test_image, linesVec4i);
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if (lines.size() == linesVec4i.size())
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{
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bool pass = true;
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for (size_t lineIndex = 0; pass && lineIndex < lines.size(); lineIndex++)
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{
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for (int ch = 0; ch < 4; ch++)
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{
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if (cv::saturate_cast<int>(lines[lineIndex][ch]) != linesVec4i[lineIndex][ch])
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{
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pass = false;
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break;
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}
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}
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}
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if (pass)
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++passedtests;
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}
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}
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ASSERT_EQ(EPOCHS, passedtests);
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}
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TEST_F(Imgproc_LSD_Common, drawSegmentsVec4f)
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{
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GenerateConstColor(test_image);
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std::vector<Vec4f> linesVec4f;
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RNG cr(0); // constant seed for deterministic test
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for (int j = 0; j < 10; j++) {
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linesVec4f.push_back(
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Vec4f(float(cr) * test_image.cols, float(cr) * test_image.rows, float(cr) * test_image.cols, float(cr) * test_image.rows));
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}
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Mat actual = Mat::zeros(test_image.size(), CV_8UC3);
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Mat expected = Mat::zeros(test_image.size(), CV_8UC3);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_STD);
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detector->drawSegments(actual, linesVec4f);
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// something should be drawn
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ASSERT_EQ(sum(actual == expected) != Scalar::all(0), true);
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for (size_t lineIndex = 0; lineIndex < linesVec4f.size(); lineIndex++)
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{
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const Vec4f &v = linesVec4f[lineIndex];
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const Point2f b(v[0], v[1]);
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const Point2f e(v[2], v[3]);
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line(expected, b, e, Scalar(0, 0, 255), 1);
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}
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ASSERT_EQ(sum(actual != expected) == Scalar::all(0), true);
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}
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TEST_F(Imgproc_LSD_Common, drawSegmentsVec4i)
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{
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GenerateConstColor(test_image);
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std::vector<Vec4i> linesVec4i;
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RNG cr(0); // constant seed for deterministic test
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for (int j = 0; j < 10; j++) {
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linesVec4i.push_back(
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Vec4i(cr(test_image.cols), cr(test_image.rows), cr(test_image.cols), cr(test_image.rows)));
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}
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Mat actual = Mat::zeros(test_image.size(), CV_8UC3);
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Mat expected = Mat::zeros(test_image.size(), CV_8UC3);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_STD);
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detector->drawSegments(actual, linesVec4i);
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// something should be drawn
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ASSERT_EQ(sum(actual == expected) != Scalar::all(0), true);
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for (size_t lineIndex = 0; lineIndex < linesVec4i.size(); lineIndex++)
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{
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const Vec4f &v = linesVec4i[lineIndex];
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const Point2f b(v[0], v[1]);
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const Point2f e(v[2], v[3]);
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line(expected, b, e, Scalar(0, 0, 255), 1);
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}
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ASSERT_EQ(sum(actual != expected) == Scalar::all(0), true);
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}
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TEST_F(Imgproc_LSD_Common, compareSegmentsVec4f)
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{
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GenerateConstColor(test_image);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_STD);
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std::vector<Vec4f> lines1, lines2;
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lines1.push_back(Vec4f(0, 0, 100, 200));
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lines2.push_back(Vec4f(0, 0, 100, 200));
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int result1 = detector->compareSegments(test_image.size(), lines1, lines2);
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ASSERT_EQ(result1, 0);
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lines2.push_back(Vec4f(100, 100, 110, 100));
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int result2 = detector->compareSegments(test_image.size(), lines1, lines2);
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ASSERT_EQ(result2, 11);
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}
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TEST_F(Imgproc_LSD_Common, compareSegmentsVec4i)
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{
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GenerateConstColor(test_image);
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Ptr<LineSegmentDetector> detector = createLineSegmentDetector(LSD_REFINE_STD);
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std::vector<Vec4i> lines1, lines2;
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lines1.push_back(Vec4i(0, 0, 100, 200));
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lines2.push_back(Vec4i(0, 0, 100, 200));
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int result1 = detector->compareSegments(test_image.size(), lines1, lines2);
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ASSERT_EQ(result1, 0);
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lines2.push_back(Vec4i(100, 100, 110, 100));
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int result2 = detector->compareSegments(test_image.size(), lines1, lines2);
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ASSERT_EQ(result2, 11);
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}
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}} // namespace
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