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Merge pull request #22164 from lamm45:hough-angles

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Fix angle discretization in Hough transforms
This commit is contained in:
Alexander Smorkalov
2022-08-31 12:23:52 +03:00
committed by GitHub
parent 7834a465d5 1f0bfc8d83
commit a72074b33f
3 changed files with 41 additions and 16 deletions
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modules/imgproc/test/test_houghlines.cpp
+11
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@@ -329,6 +329,17 @@ TEST(HoughLinesPointSet, regression_21029)
EXPECT_TRUE(lines.empty());
}
TEST(HoughLines, regression_21983)
{
Mat img(200, 200, CV_8UC1, Scalar(0));
line(img, Point(0, 100), Point(100, 100), Scalar(255));
std::vector<Vec2f> lines;
HoughLines(img, lines, 1, CV_PI/180, 90, 0, 0, 0.001, 1.58);
ASSERT_EQ(lines.size(), 1U);
EXPECT_EQ(lines[0][0], 100);
EXPECT_NEAR(lines[0][1], 1.57179642, 1e-4);
}
INSTANTIATE_TEST_CASE_P( ImgProc, StandartHoughLinesTest, testing::Combine(testing::Values( "shared/pic5.png", "../stitching/a1.png" ),
testing::Values( 1, 10 ),
testing::Values( 0.05, 0.1 ),