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modules/features2d/test/test_sift.cpp
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Yosshi999
Merge pull request #18001 from Yosshi999:sift-8bit-descr
17 авг 2020, 13:28
Не верифицирован
17 авг 2020, 13:28
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// This file is part of OpenCV project. // It is subject to the license terms in the LICENSE file found in the top-level directory // of this distribution and at http://opencv.org/license.html #include "test_precomp.hpp" namespace opencv_test { namespace { TEST(Features2d_SIFT, descriptor_type) { Mat image = imread(cvtest::findDataFile("features2d/tsukuba.png")); ASSERT_FALSE(image.empty()); Mat gray; cvtColor(image, gray, COLOR_BGR2GRAY); vector<KeyPoint> keypoints; Mat descriptorsFloat, descriptorsUchar; Ptr<SIFT> siftFloat = cv::SIFT::create(0, 3, 0.04, 10, 1.6, CV_32F); siftFloat->detectAndCompute(gray, Mat(), keypoints, descriptorsFloat, false); ASSERT_EQ(descriptorsFloat.type(), CV_32F) << "type mismatch"; Ptr<SIFT> siftUchar = cv::SIFT::create(0, 3, 0.04, 10, 1.6, CV_8U); siftUchar->detectAndCompute(gray, Mat(), keypoints, descriptorsUchar, false); ASSERT_EQ(descriptorsUchar.type(), CV_8U) << "type mismatch"; Mat descriptorsFloat2; descriptorsUchar.assignTo(descriptorsFloat2, CV_32F); Mat diff = descriptorsFloat != descriptorsFloat2; ASSERT_EQ(countNonZero(diff), 0) << "descriptors are not identical"; } }} // namespace