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added read/write functions for vector<DMatch> + the test (http://code.opencv.org/issues/4308)

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This commit is contained in:
Vadim Pisarevsky
2015-05-18 18:59:37 +03:00
parent e0136e39f4
commit 432cf1152a
3 changed files with 41 additions and 0 deletions
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29
modules/core/src/persistence.cpp
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@@ -5594,6 +5594,35 @@ void read(const FileNode& node, std::vector<KeyPoint>& keypoints)
}
}
void write(FileStorage& fs, const String& objname, const std::vector<DMatch>& matches)
{
cv::internal::WriteStructContext ws(fs, objname, CV_NODE_SEQ + CV_NODE_FLOW);
int i, n = (int)matches.size();
for( i = 0; i < n; i++ )
{
const DMatch& m = matches[i];
cv::write(fs, m.queryIdx);
cv::write(fs, m.trainIdx);
cv::write(fs, m.imgIdx);
cv::write(fs, m.distance);
}
}
void read(const FileNode& node, std::vector<DMatch>& matches)
{
matches.resize(0);
FileNodeIterator it = node.begin(), it_end = node.end();
for( ; it != it_end; )
{
DMatch m;
it >> m.queryIdx >> m.trainIdx >> m.imgIdx >> m.distance;
matches.push_back(m);
}
}
int FileNode::type() const { return !node ? NONE : (node->tag & TYPE_MASK); }
bool FileNode::isNamed() const { return !node ? false : (node->tag & NAMED) != 0; }