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74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
#include "perf_precomp.hpp"
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#include "cmath"
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using namespace std;
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using namespace cv;
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using namespace perf;
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using std::tr1::make_tuple;
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using std::tr1::get;
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typedef std::tr1::tuple<string, double, double, double> Image_RhoStep_ThetaStep_Threshold_t;
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typedef perf::TestBaseWithParam<Image_RhoStep_ThetaStep_Threshold_t> Image_RhoStep_ThetaStep_Threshold;
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PERF_TEST_P(Image_RhoStep_ThetaStep_Threshold, HoughLines,
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testing::Combine(
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testing::Values( "cv/shared/pic5.png", "stitching/a1.png" ),
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testing::Values( 1, 10 ),
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testing::Values( 0.01, 0.1 ),
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testing::Values( 0.5, 1.1 )
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)
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)
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{
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string filename = getDataPath(get<0>(GetParam()));
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double rhoStep = get<1>(GetParam());
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double thetaStep = get<2>(GetParam());
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double threshold_ratio = get<3>(GetParam());
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Mat image = imread(filename, IMREAD_GRAYSCALE);
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if (image.empty())
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FAIL() << "Unable to load source image" << filename;
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Canny(image, image, 32, 128);
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// add some syntetic lines:
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line(image, Point(0, 0), Point(image.cols, image.rows), Scalar::all(255), 3);
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line(image, Point(image.cols, 0), Point(image.cols/2, image.rows), Scalar::all(255), 3);
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vector<Vec2f> lines;
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declare.time(60);
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int threshold = (int)(std::min(image.cols, image.rows) * threshold_ratio);
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TEST_CYCLE() HoughLines(image, lines, rhoStep, thetaStep, threshold);
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printf("%dx%d: %d lines\n", image.cols, image.rows, (int)lines.size());
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if (threshold_ratio < 1.0)
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{
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EXPECT_GE(lines.size(), 2u);
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}
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EXPECT_LT(lines.size(), 3000u);
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#if 0
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cv::cvtColor(image,image,cv::COLOR_GRAY2BGR);
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for( size_t i = 0; i < lines.size(); i++ )
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{
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float rho = lines[i][0], theta = lines[i][1];
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Point pt1, pt2;
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double a = cos(theta), b = sin(theta);
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double x0 = a*rho, y0 = b*rho;
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pt1.x = cvRound(x0 + 1000*(-b));
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pt1.y = cvRound(y0 + 1000*(a));
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pt2.x = cvRound(x0 - 1000*(-b));
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pt2.y = cvRound(y0 - 1000*(a));
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line(image, pt1, pt2, Scalar(0,0,255), 1, cv::LINE_AA);
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}
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cv::imshow("result", image);
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cv::waitKey();
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#endif
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SANITY_CHECK_NOTHING();
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}
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