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132 lines
4.3 KiB
C++
132 lines
4.3 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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#include "opencv2/stitching/warpers.hpp"
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namespace opencv_test { namespace {
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class ReprojectionTest : public ::testing::Test {
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protected:
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const size_t TEST_COUNT = 15;
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Mat K, R;
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RNG rng = RNG(0);
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ReprojectionTest()
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{
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K = Mat::eye(3, 3, CV_32FC1);
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float angle = (float)(30.0 * CV_PI / 180.0);
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float rotationMatrix[9] = {
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(float)cos(angle), (float)sin(angle), 0,
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(float)-sin(angle), (float)cos(angle), 0,
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0, 0, 1
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};
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Mat(3, 3, CV_32FC1, rotationMatrix).copyTo(R);
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}
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void TestReprojection(Ptr<detail::RotationWarper> warper, Point2f pt) {
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Point2f projected_pt = warper->warpPoint(pt, K, R);
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Point2f reprojected_pt = warper->warpPointBackward(projected_pt, K, R);
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EXPECT_NEAR(pt.x, reprojected_pt.x, float( 1e-5));
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EXPECT_NEAR(pt.y, reprojected_pt.y, float( 1e-5));
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}
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};
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TEST_F(ReprojectionTest, PlaneWarper)
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{
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Ptr<WarperCreator> creator = makePtr<PlaneWarper>();
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for (size_t i = 0; i < TEST_COUNT; ++i) {
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TestReprojection(creator->create(1), Point2f(rng.uniform(-1.f, 1.f), rng.uniform(-1.f, 1.f)));
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}
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}
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TEST_F(ReprojectionTest, AffineWarper)
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{
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Ptr<WarperCreator> creator = makePtr<AffineWarper>();
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for (size_t i = 0; i < TEST_COUNT; ++i) {
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TestReprojection(creator->create(1), Point2f(rng.uniform(-1.f, 1.f), rng.uniform(-1.f, 1.f)));
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}
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}
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TEST_F(ReprojectionTest, CylindricalWarper)
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{
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Ptr<WarperCreator> creator = makePtr<CylindricalWarper>();
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for (size_t i = 0; i < TEST_COUNT; ++i) {
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TestReprojection(creator->create(1), Point2f(rng.uniform(-1.f, 1.f), rng.uniform(-1.f, 1.f)));
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}
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}
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TEST_F(ReprojectionTest, SphericalWarper)
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{
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Ptr<WarperCreator> creator = makePtr<SphericalWarper>();
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for (size_t i = 0; i < TEST_COUNT; ++i) {
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TestReprojection(creator->create(1), Point2f(rng.uniform(-1.f, 1.f), rng.uniform(-1.f, 1.f)));
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}
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}
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TEST_F(ReprojectionTest, FisheyeWarper)
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{
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Ptr<WarperCreator> creator = makePtr<FisheyeWarper>();
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for (size_t i = 0; i < TEST_COUNT; ++i) {
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TestReprojection(creator->create(1), Point2f(rng.uniform(-1.f, 1.f), rng.uniform(-1.f, 1.f)));
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}
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}
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TEST_F(ReprojectionTest, StereographicWarper)
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{
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Ptr<WarperCreator> creator = makePtr<StereographicWarper>();
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for (size_t i = 0; i < TEST_COUNT; ++i) {
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TestReprojection(creator->create(1), Point2f(rng.uniform(-1.f, 1.f), rng.uniform(-1.f, 1.f)));
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}
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}
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TEST_F(ReprojectionTest, CompressedRectilinearWarper)
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{
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Ptr<WarperCreator> creator = makePtr<CompressedRectilinearWarper>(1.5f, 1.0f);
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for (size_t i = 0; i < TEST_COUNT; ++i) {
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TestReprojection(creator->create(1), Point2f(rng.uniform(-1.f, 1.f), rng.uniform(-1.f, 1.f)));
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}
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}
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TEST_F(ReprojectionTest, CompressedRectilinearPortraitWarper)
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{
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Ptr<WarperCreator> creator = makePtr<CompressedRectilinearPortraitWarper>(1.5f, 1.0f);
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for (size_t i = 0; i < TEST_COUNT; ++i) {
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TestReprojection(creator->create(1), Point2f(rng.uniform(-1.f, 1.f), rng.uniform(-1.f, 1.f)));
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}
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}
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TEST_F(ReprojectionTest, PaniniWarper)
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{
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Ptr<WarperCreator> creator = makePtr<PaniniWarper>(1.5f, 1.0f);
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for (size_t i = 0; i < TEST_COUNT; ++i) {
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TestReprojection(creator->create(1), Point2f(rng.uniform(-1.f, 1.f), rng.uniform(-1.f, 1.f)));
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}
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}
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TEST_F(ReprojectionTest, PaniniPortraitWarper)
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{
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Ptr<WarperCreator> creator = makePtr<PaniniPortraitWarper>(1.5f, 1.0f);
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for (size_t i = 0; i < TEST_COUNT; ++i) {
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TestReprojection(creator->create(1), Point2f(rng.uniform(-1.f, 1.f), rng.uniform(-1.f, 1.f)));
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}
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}
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TEST_F(ReprojectionTest, MercatorWarper)
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{
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Ptr<WarperCreator> creator = makePtr<MercatorWarper>();
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for (size_t i = 0; i < TEST_COUNT; ++i) {
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TestReprojection(creator->create(1), Point2f(rng.uniform(-1.f, 1.f), rng.uniform(-1.f, 1.f)));
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}
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}
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TEST_F(ReprojectionTest, TransverseMercatorWarper)
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{
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Ptr<WarperCreator> creator = makePtr<TransverseMercatorWarper>();
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for (size_t i = 0; i < TEST_COUNT; ++i) {
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TestReprojection(creator->create(1), Point2f(rng.uniform(-1.f, 1.f), rng.uniform(-1.f, 1.f)));
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}
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}
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}} // namespace
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