OpenCV  5.0.0-pre
Open Source Computer Vision
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Exporting a template parameter file

Goal

In this tutorial you will learn how to

  • create a simple parameter file template.
#include <opencv2/core.hpp>
using namespace cv;
using namespace std;
int main(int argc, char* argv[])
{
Ptr<stereo::QuasiDenseStereo> stereo = stereo::QuasiDenseStereo::create(cv::Size(5,5));
std::string parameterFileLocation = "./parameters.yaml";
if (argc > 1)
parameterFileLocation = argv[1];
stereo->saveParameters(parameterFileLocation);
return 0;
}
Template class for specifying the size of an image or rectangle.
Definition types.hpp:335
std::shared_ptr< _Tp > Ptr
Definition cvstd_wrapper.hpp:23
int main(int argc, char *argv[])
Definition highgui_qt.cpp:3
"black box" representation of the file storage associated with a file on disk.
Definition core.hpp:102
STL namespace.

Explanation:

The class supports loading configuration parameters from a .yaml file using the method loadParameters(). This is very useful for fine-tuning the class' parameters on the fly. To extract a template of this parameter file you run the following code.

We create an instance of a QuasiDenseStereo object. Not specifying the second argument of the constructor, makes the object to load default parameters.

Ptr<stereo::QuasiDenseStereo> stereo = stereo::QuasiDenseStereo::create(cv::Size(5,5));

By calling the method saveParameters(), we store the template file to the location specified by parameterFileLocation

std::string parameterFileLocation = "./parameters.yaml";
if (argc > 1)
parameterFileLocation = argv[1];
stereo->saveParameters(parameterFileLocation);