Opencv Write an image with two channel

Question

How write a cv::Mat which the type is CV_32FC2.

Is it possible to write the two channels in TIFF file ? or write each channel separately ?

Answer 1

if you can live with a (large!) textfile, use the FileStorage:

Mat m; // your CV_32FC2

FileStorage fs("my.yml",FileStorage::WRITE);
fs << "mat1" << m;  // key, value store
fs.release();       // flush.

FileStorage fs1("my.yml",FileStorage::READ);
fs1["mat1"] >> m;