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changing values of mat in opencv c++

Yucky Yak on Dec 26, 2020

// Mat constructor
Mat data(4, 1, CV_64FC1);

// Set Value
data.at<double>(0,0) = 4;

// Get Value
double value = data.at<double>(0,0);

Source: stackoverflow.com

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"changing values of mat in opencv c++" Code Answer's