Mat declaration: declaration dimensions and size() are differents

c++#opencv

asked 2017-07-26 04:42:05 -0600

Alvaro
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I declare a Mat as Mat mu = Mat::ones(2000, 256, CV_64F); and when i do cout << size(mu); the output is "[256, 2000]". This only happens in some parts of the code and I can understand that.

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answered 2017-07-26 04:46:46 -0600

berak
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the difference is only in the printing.

if you allocate a Mat like: Mat mu = Mat::ones(2000, 256, CV_64F); it will have 2000 rows and 256 columns, if you print out mu.size() it will show [256x2000] (cols, rows)

admittedly confusing, but no error.