navia's profile - activity

2017-01-18 16:39:54 -0600	commented answer	How to take out certain 2D matrix from 3D Mat matrix? ok! thanks~
2017-01-18 10:09:05 -0600	asked a question	How to take out certain 2D matrix from 3D Mat matrix? I have created a 3D matrix like this: int sizes[] = { 3, vec.size().height, vec.size().width }; Mat *zeta = new Mat(3, sizes, CV_64FC1, cv::Scalar(0)); now i d like to get zeta[0,:,:] for example I searched online, but have not found any function to do this. Anyone has the idea? Thanks!
2016-12-10 15:28:16 -0600	asked a question	error in mathcalls.h when install opencv3 in ubuntu 16 I followed the installation tutorial here : http://docs.opencv.org/3.1.0/d7/d9f/t... in the build step, I type make -j5. Then it has the follwing error. I am not sure why this happen???? There are many of this kind errors, I just screen shot some of them. At last, the end part will be : Could you give me some hints or solution? Thanks!!!!