I have a question about how to use xml.

asked 2017-04-26 01:37:55 -0600

yhd
11 ●2

updated 2017-04-26 07:26:40 -0600

20029 ●16 ●82 ●207 http://stevenputtemans...

cv::Mat A(181, 181, CV_32FC(28), Scalar(0));

There are 181 rows, 181 cols and 28 channels.

An error occurs when reading this after saving it in xml file.

FileStorage fs2("tau.yml", FileStorage::READ);
Mat AA;
fs2["A"] >> AA; // error occur

I think 181, 181, and 28 do not seem to parse.

Can I use the opencv library to solve this?

Or should I write new code to read this?

Thanks for reading.

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Fixed all typo's first, then wondered if you would be able to add the actual error and the YML file because how else can we help you further...

StevenPuttemans ( 2017-04-26 07:27:45 -0600 )edit

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answered 2017-04-26 07:48:36 -0600

LBerger
9317 ●2 ●20 ●88 http://www.traimaocv.fr

updated 2017-04-26 07:51:26 -0600

Yes I agree whith you (vs 2015 opencv 3.2-dev). there is a problem with this code

{
    cv::Mat A(2, 3, CV_32FC(181), Scalar(0));
    FileStorage fs1("tau.yml", FileStorage::WRITE);
    fs1 << "A" << A;
    fs1.release();

}
FileStorage fs2("tau.yml", FileStorage::READ);
Mat AA;
if (!fs2["A"].empty())
fs2["A"] >> AA;
cout << AA;
fs2.release();

now problem is at these lines

if( fmt_pair_count != 1 || fmt_pairs[0] > 4 )
    CV_Error( CV_StsError, "Too complex format for the matrix" );

If you have build opencv using cmake you can change fmt_pairs[0] > 4 in fmt_pairs[0] > 256 and it should work. Something better : make an issue and give this post in reference