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Merge pull request #11935 from mattmyne:filestorage_matx

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* Support for Matx read/write by FileStorage

* Only empty filestorage read now produces default Matx. Split Matx IO test into smaller units. Test checks for exception thrown if reading a Mat into a Matx of different size.
This commit is contained in:
Matt Bennett 2018-11-09 17:05:59 +00:00 committed by Alexander Alekhin
parent a1dd30ed50
commit 10e1c2b3cd
2 changed files with 77 additions and 0 deletions
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23
modules/core/include/opencv2/core/persistence.hpp
View File

@ -751,6 +751,17 @@ template<typename _Tp, int cn> static inline void read(const FileNode& node, Vec
value = temp.size() != cn ? default_value : Vec<_Tp, cn>(&temp[0]);
}
template<typename _Tp, int m, int n> static inline void read(const FileNode& node, Matx<_Tp, m, n>& value, const Matx<_Tp, m, n>& default_matx = Matx<_Tp, m, n>())
{
Mat temp;
read(node, temp); // read as a Mat class
if (temp.empty())
value = default_matx;
else
value = Matx<_Tp, m, n>(temp);
}
template<typename _Tp> static inline void read(const FileNode& node, Scalar_<_Tp>& value, const Scalar_<_Tp>& default_value)
{
std::vector<_Tp> temp; FileNodeIterator it = node.begin(); it >> temp;
@ -931,6 +942,12 @@ void write(FileStorage& fs, const Vec<_Tp, cn>& v )
write(fs, v.val[i]);
}
template<typename _Tp, int m, int n> static inline
void write(FileStorage& fs, const Matx<_Tp, m, n>& x )
{
write(fs, Mat(x)); // write as a Mat class
}
template<typename _Tp> static inline
void write(FileStorage& fs, const Scalar_<_Tp>& s )
{
@ -996,6 +1013,12 @@ void write(FileStorage& fs, const String& name, const Vec<_Tp, cn>& v )
write(fs, v);
}
template<typename _Tp, int m, int n> static inline
void write(FileStorage& fs, const String& name, const Matx<_Tp, m, n>& x )
{
write(fs, name, Mat(x)); // write as a Mat class
}
template<typename _Tp> static inline
void write(FileStorage& fs, const String& name, const Scalar_<_Tp>& s )
{

54
modules/core/test/test_io.cpp
View File

@ -1006,6 +1006,60 @@ TEST(Core_InputOutput, filestorage_yaml_advanvced_type_heading)
ASSERT_EQ(cv::norm(inputMatrix, actualMatrix, NORM_INF), 0.);
}
TEST(Core_InputOutput, filestorage_matx_io)
{
Matx33d matxTest(1.234, 2, 3, 4, 5, 6, 7, 8, 9.876);
FileStorage writer("", FileStorage::WRITE | FileStorage::MEMORY);
writer << "matxTest" << matxTest;
String content = writer.releaseAndGetString();
FileStorage reader(content, FileStorage::READ | FileStorage::MEMORY);
Matx33d matxTestRead;
reader["matxTest"] >> matxTestRead;
ASSERT_TRUE( cv::norm(matxTest, matxTestRead, NORM_INF) == 0 );
reader.release();
}
TEST(Core_InputOutput, filestorage_matx_io_size_mismatch)
{
Matx32d matxTestWrongSize(1, 2, 3, 4, 5, 6);
FileStorage writer("", FileStorage::WRITE | FileStorage::MEMORY);
writer << "matxTestWrongSize" << matxTestWrongSize;
String content = writer.releaseAndGetString();
FileStorage reader(content, FileStorage::READ | FileStorage::MEMORY);
Matx33d matxTestRead;
try
{
reader["matxTestWrongSize"] >> matxTestRead;
FAIL() << "wrong size matrix read but no exception thrown";
}
catch (const std::exception&)
{
}
reader.release();
}
TEST(Core_InputOutput, filestorage_matx_io_with_mat)
{
Mat normalMat = Mat::eye(3, 3, CV_64F);
FileStorage writer("", FileStorage::WRITE | FileStorage::MEMORY);
writer << "normalMat" << normalMat;
String content = writer.releaseAndGetString();
FileStorage reader(content, FileStorage::READ | FileStorage::MEMORY);
Matx33d matxTestRead;
reader["normalMat"] >> matxTestRead;
ASSERT_TRUE( cv::norm(Mat::eye(3, 3, CV_64F), matxTestRead, NORM_INF) == 0 );
reader.release();
}
TEST(Core_InputOutput, filestorage_keypoints_vec_vec_io)
{
vector<vector<KeyPoint> > kptsVec;