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compare two rows of a matrix

asked 2013-01-23 13:24:29 -0500

southpark gravatar image

updated 2013-01-23 22:19:43 -0500

Haris gravatar image

Basically, I want to compare two rows from a matrix and return the logic values.

 Mat x(240, 320, CV_32F); // 240*320 image size
 Mat pairs(5, 2, CV_8U);  // 5*2 matrix, each row is a pair of row index from x
 int P  = pairs.rows;
 for (int j=0; j<P; j++) {
 z = (x.row(pairs(j,1)) > x.row(pairs(j,2)));
 }

It gives the following error,

   error C2664: 'cv::Mat cv::Mat::operator ()(const cv::Range *) const' : cannot convert parameter 1 from 'int' to 'const cv::Range *'

How to resolve this issue? Is it because the operator of row(int i) is wrong?

Thanks for your help.

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answered 2013-01-23 22:45:59 -0500

Daniil Osokin gravatar image

Hi! It's because operator() from pairs. Try this:


x.row(pairs.at<unsigned char>(j,0)) > x.row(pairs.at<unsigned char>(j,1))
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Thanks all the same. Later, I also figured out the problem.

southpark gravatar imagesouthpark ( 2013-01-25 07:53:52 -0500 )edit
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Asked: 2013-01-23 13:24:29 -0500

Seen: 1,008 times

Last updated: Jan 23 '13