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a3ebafbdeb
added blob contours to blob detector * added blob contours * Fixed Java regression test after new parameter addition to SimpleBlobDetector. * Added stub implementation of SimpleBlobDetector::getBlobContours to presume source API compatibility.
47 lines
1.8 KiB
C++
47 lines
1.8 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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TEST(Features2d_BlobDetector, bug_6667)
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{
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cv::Mat image = cv::Mat(cv::Size(100, 100), CV_8UC1, cv::Scalar(255, 255, 255));
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cv::circle(image, Point(50, 50), 20, cv::Scalar(0), -1);
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SimpleBlobDetector::Params params;
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params.minThreshold = 250;
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params.maxThreshold = 260;
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params.minRepeatability = 1; // https://github.com/opencv/opencv/issues/6667
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std::vector<KeyPoint> keypoints;
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Ptr<SimpleBlobDetector> detector = SimpleBlobDetector::create(params);
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detector->detect(image, keypoints);
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ASSERT_NE((int) keypoints.size(), 0);
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}
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TEST(Features2d_BlobDetector, withContours)
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{
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cv::Mat image = cv::Mat(cv::Size(100, 100), CV_8UC1, cv::Scalar(255, 255, 255));
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cv::circle(image, Point(50, 50), 20, cv::Scalar(0), -1);
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SimpleBlobDetector::Params params;
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params.minThreshold = 250;
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params.maxThreshold = 260;
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params.minRepeatability = 1; // https://github.com/opencv/opencv/issues/6667
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params.collectContours = true;
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std::vector<KeyPoint> keypoints;
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Ptr<SimpleBlobDetector> detector = SimpleBlobDetector::create(params);
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detector->detect(image, keypoints);
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ASSERT_NE((int)keypoints.size(), 0);
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ASSERT_GT((int)detector->getBlobContours().size(), 0);
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std::vector<Point> contour = detector->getBlobContours()[0];
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ASSERT_TRUE(std::any_of(contour.begin(), contour.end(),
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[](Point p)
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{
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return abs(p.x - 30) < 2 && abs(p.y - 50) < 2;
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}));
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}
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}} // namespace
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