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a3bdbf5553
Imgproc: use double to determine whether the corners points are within src #26022 close #26016 Related https://github.com/opencv/opencv_contrib/pull/3778 ### Pull Request Readiness Checklist See details at https://github.com/opencv/opencv/wiki/How_to_contribute#making-a-good-pull-request - [x] I agree to contribute to the project under Apache 2 License. - [x] To the best of my knowledge, the proposed patch is not based on a code under GPL or another license that is incompatible with OpenCV - [x] The PR is proposed to the proper branch - [x] There is a reference to the original bug report and related work - [x] There is accuracy test, performance test and test data in opencv_extra repository, if applicable Patch to opencv_extra has the same branch name. - [x] The feature is well documented and sample code can be built with the project CMake
96 lines
4.2 KiB
C++
96 lines
4.2 KiB
C++
/*M///////////////////////////////////////////////////////////////////////////////////////
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// For Open Source Computer Vision Library
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//M*/
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#include "test_precomp.hpp"
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namespace opencv_test { namespace {
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TEST(Imgproc_CornerSubPix, out_of_image_corners)
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{
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const uint8_t image_pixels[] = {
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0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 0,
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0, 0, 0, 0, 0, 0, 1,
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0, 0, 0, 0, 0, 0, 2,
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0, 0, 0, 0, 0, 0, 3};
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cv::Mat image(cv::Size(7, 7), CV_8UC1, (void*)image_pixels, cv::Mat::AUTO_STEP);
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std::vector<cv::Point2f> corners = {cv::Point2f(5.25, 6.5)};
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cv::Size win(1, 1);
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cv::Size zeroZone(-1, -1);
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cv::TermCriteria criteria;
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cv::cornerSubPix(image, corners, win, zeroZone, criteria);
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ASSERT_EQ(corners.size(), 1u);
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ASSERT_TRUE(Rect(0, 0, image.cols, image.rows).contains(corners.front()));
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}
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// See https://github.com/opencv/opencv/issues/26016
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TEST(Imgproc_CornerSubPix, corners_on_the_edge)
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{
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cv::Mat image(500, 500, CV_8UC1);
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cv::Size win(1, 1);
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cv::Size zeroZone(-1, -1);
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cv::TermCriteria criteria;
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std::vector<cv::Point2f> cornersOK1 = { cv::Point2f(250, std::nextafter(499.5f, 499.5f - 1.0f)) };
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EXPECT_NO_THROW( cv::cornerSubPix(image, cornersOK1, win, zeroZone, criteria) ) << cornersOK1;
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std::vector<cv::Point2f> cornersOK2 = { cv::Point2f(250, 499.5f) };
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EXPECT_NO_THROW( cv::cornerSubPix(image, cornersOK2, win, zeroZone, criteria) ) << cornersOK2;
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std::vector<cv::Point2f> cornersOK3 = { cv::Point2f(250, std::nextafter(499.5f, 499.5f + 1.0f)) };
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EXPECT_NO_THROW( cv::cornerSubPix(image, cornersOK3, win, zeroZone, criteria) ) << cornersOK3;
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std::vector<cv::Point2f> cornersOK4 = { cv::Point2f(250, std::nextafter(500.0f, 500.0f - 1.0f)) };
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EXPECT_NO_THROW( cv::cornerSubPix(image, cornersOK4, win, zeroZone, criteria) ) << cornersOK4;
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std::vector<cv::Point2f> cornersNG1 = { cv::Point2f(250, 500.0f) };
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EXPECT_ANY_THROW( cv::cornerSubPix(image, cornersNG1, win, zeroZone, criteria) ) << cornersNG1;
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std::vector<cv::Point2f> cornersNG2 = { cv::Point2f(250, std::nextafter(500.0f, 500.0f + 1.0f)) };
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EXPECT_ANY_THROW( cv::cornerSubPix(image, cornersNG2, win, zeroZone, criteria) ) << cornersNG2;
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}
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}} // namespace
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