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Merge branch '4.x' into '5.x'

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This commit is contained in:
Maksim Shabunin
2024-06-11 19:38:59 +03:00
parent a2d2ea6536 a03b813167
commit 26ea34c4cb
573 changed files with 72922 additions and 7355 deletions
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modules/imgproc/test/test_drawing.cpp
+107
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@@ -1106,4 +1106,111 @@ TEST(Drawing, circle_memory_access)
cv::circle(matrix, cv::Point(-1, -1), 0, kBlue, 2, 8, 16);
}
inline static Mat mosaic2x2(Mat &img)
{
const Size sz = img.size();
Mat res(sz * 2, img.type(), Scalar::all(0));
img.copyTo(res(Rect(Point(0, 0), sz)));
img.copyTo(res(Rect(Point(0, sz.height), sz)));
img.copyTo(res(Rect(Point(sz.width, 0), sz)));
img.copyTo(res(Rect(Point(sz.width, sz.height), sz)));
return res;
}
TEST(Drawing, contours_filled)
{
const Scalar white(255);
const Scalar black(0);
const Size sz(100, 100);
Mat img(sz, CV_8UC1, black);
rectangle(img, Point(20, 20), Point(80, 80), white, -1);
rectangle(img, Point(30, 30), Point(70, 70), black, -1);
rectangle(img, Point(40, 40), Point(60, 60), white, -1);
img = mosaic2x2(img);
Mat img1(sz, CV_8UC1, black);
rectangle(img1, Point(20, 20), Point(80, 80), white, -1);
img1 = mosaic2x2(img1);
Mat img2(sz, CV_8UC1, black);
rectangle(img2, Point(20, 20), Point(80, 80), white, -1);
rectangle(img2, Point(30, 30), Point(70, 70), black, -1);
img2 = mosaic2x2(img2);
Mat img3(sz, CV_8UC1, black);
rectangle(img3, Point(40, 40), Point(60, 60), white, -1);
img3 = mosaic2x2(img3);
// inverted contours - corners and left edge adjusted
Mat imgi(sz, CV_8UC1, black);
rectangle(imgi, Point(29, 29), Point(71, 71), white, -1);
rectangle(imgi, Point(41, 41), Point(59, 59), black, -1);
imgi.at<uchar>(Point(29, 29)) = 0;
imgi.at<uchar>(Point(29, 71)) = 0;
imgi = mosaic2x2(imgi);
vector<vector<Point>> contours;
vector<Vec4i> hierarchy;
findContours(img, contours, hierarchy, RETR_TREE, CHAIN_APPROX_NONE);
ASSERT_EQ(12u, contours.size());
// NOTE:
// assuming contour tree has following structure (idx = 0, 1, ...):
// idx (top level)
// - idx + 1
// - idx + 2
// idx + 3 (top level)
// - idx + 4
// - idx + 5
// ...
const vector<int> top_contours {0, 3, 6, 9};
{
// all contours
Mat res(img.size(), CV_8UC1, Scalar::all(0));
drawContours(res, contours, -1, white, -1, cv::LINE_8, hierarchy);
EXPECT_LT(cvtest::norm(img, res, NORM_INF), 1);
}
{
// all contours
Mat res(img.size(), CV_8UC1, Scalar::all(0));
drawContours(res, contours, -1, white, -1, cv::LINE_8, hierarchy, 3);
EXPECT_LT(cvtest::norm(img, res, NORM_INF), 1);
}
{
// all contours
Mat res(img.size(), CV_8UC1, Scalar::all(0));
drawContours(res, contours, -1, white, -1, cv::LINE_8, hierarchy, 0);
EXPECT_LT(cvtest::norm(img, res, NORM_INF), 1);
}
{
// all external contours one by one
Mat res(img.size(), CV_8UC1, Scalar::all(0));
for (int idx : top_contours)
drawContours(res, contours, idx, white, -1, cv::LINE_8, hierarchy, 0);
EXPECT_LT(cvtest::norm(img1, res, NORM_INF), 1);
}
{
// all external contours + 1-level deep hole (one by one)
Mat res(img.size(), CV_8UC1, Scalar::all(0));
for (int idx : top_contours)
drawContours(res, contours, idx, white, -1, cv::LINE_8, hierarchy, 1);
EXPECT_LT(cvtest::norm(img2, res, NORM_INF), 1);
}
{
// 2-level deep contours
Mat res(img.size(), CV_8UC1, Scalar::all(0));
for (int idx : top_contours)
drawContours(res, contours, idx + 2, white, -1, cv::LINE_8, hierarchy);
EXPECT_LT(cvtest::norm(img3, res, NORM_INF), 1);
}
{
// holes become inverted here, LINE_8 -> LINE_4
Mat res(img.size(), CV_8UC1, Scalar::all(0));
for (int idx : top_contours)
drawContours(res, contours, idx + 1, white, -1, cv::LINE_4, hierarchy);
EXPECT_LT(cvtest::norm(imgi, res, NORM_INF), 1);
}
}
}} // namespace