Is there a built-in function to calculate the variance of a cv::Mat ?
This is in order to normalize the cv::Mat before feeding it to an ANN
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Yes, there exist the function meanStdDev(). Since the standard deviation is the square root of the variance, you just need to square the result.
Asked: 2015-01-28 12:59:02 -0500
Seen: 12,557 times
Last updated: Jan 28 '15
