I'm using OpenCV 3.1 from C++ and I want to store my matrix in Python format:
errfile.open("errs.txt");
errfile << cv::format(errs, cv::Formatter::FMT_PYTHON) << std::endl;
errfile.close();
(errs is of type cv::Mat)
But the output is:
[[1271892,725376768, 65449,68687547074, 9149,382398115458, ... ]]
It seems like OpenCV is using my systems locale number format, using a comma as decimal separator. But Python expects a dot.
Although doing:
errfile << 6.66f << std::endl;
does print "6.66" not "6,66".
Using errfile.embue to set the locale for the steam doesn't help either.
I have to set the global locale:
std::setlocale(LC_NUMERIC, "en_US.UTF-8");
I don't think it makes sense to apply the locale here, since the format should be the python code format. Is this a bug I should report?
Additional Info: My system uses en_US locale for language, but German (de_AT) locale for numbers.