cv::ppf_match_3d::PPF3DDetector::write and read function doesn´t work

[CapanL]

• OpenCV => 4.6
• Operating System / Platform => Windows 64 Bit
• Compiler => Visual Studio 2019/2022

Detailed description

The write and read function from cv::ppf_match3d::PPF3DDetector class doesn´t work. It always says 2 unresolved externals.

Steps to reproduce

cv::Mat pc = cv::ppf_match_3d::loadPLYSimple(modelFileName.c_str(), 1);
cv::ppf_match_3d::PPF3DDetector detector(acc, relativeSceneDistance);
detector.trainModel(pc);
cv::FileStorage fs("filestorage.xml", cv::FileStorage::WRITE);
detector.write(fs);
fs.release();




cv::FileStorage fs("filestorage.xml", cv::FileStorage::READ);
cv::FileNode fn = fs["XXXX"];
detector.read(fn);