176 lines
4.6 KiB
C++
176 lines
4.6 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 FLD_TEST_SEED = 0x134679;
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const int EPOCHS = 20;
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class FLDBase : public testing::Test
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{
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public:
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FLDBase() { }
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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 GenerateBrokenLines(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 ximgproc_FLD: public FLDBase
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{
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public:
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ximgproc_FLD() { }
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protected:
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};
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void FLDBase::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 FLDBase::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 FLDBase::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), 2);
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}
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}
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void FLDBase::GenerateBrokenLines(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/2);
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line(image, p1, p2, Scalar(255), 2);
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p1 = Point2i(y, img_size.height/2 + 3);
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p2 = Point2i(y, img_size.height - 10);
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line(image, p1, p2, Scalar(255), 2);
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}
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}
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void FLDBase::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 FLDBase::SetUp()
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{
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lines.clear();
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test_image = Mat();
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rng = RNG(FLD_TEST_SEED);
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passedtests = 0;
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}
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TEST_F(ximgproc_FLD, 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<FastLineDetector> detector = createFastLineDetector(20);
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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(ximgproc_FLD, 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<FastLineDetector> detector = createFastLineDetector();
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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(ximgproc_FLD, 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<FastLineDetector> detector = createFastLineDetector();
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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(ximgproc_FLD, mergeLines)
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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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GenerateBrokenLines(test_image, numOfLines);
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Ptr<FastLineDetector> detector = createFastLineDetector(10, 1.414213562f, true);
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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(ximgproc_FLD, 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<FastLineDetector> detector = createFastLineDetector();
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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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}} // namespace
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