GpuMat and std::vector

asked 2012-10-22 16:46:54 -0600

andreas_
96 ●1 ●8

updated 2012-10-24 02:35:16 -0600

Kirill Kornyakov

2792 ●13 ●25 ●52

Hi all,

what is the appropriate way to store GpuMats in a container. So far I'm using std::vector<cv::gpu::GpuMat> But I'm wondering how the GpuMats are stored in the vector. Does the vector create copies of the matrices on the GPU memory? If so, it's probably not very efficient. What would be the best solution? Would it make more sense to use std::vector<cv::gpu::GpuMat*> or better std::vector < boost::shared_ptr <cv::gpu::GpuMat> > ?

Cheers, Andreas

edit retag flag offensive close merge delete

add a comment

1 answer

Sort by » oldest newest most voted

answered 2012-10-23 01:30:57 -0600

Vladislav Vinogradov

4775 ●4 ●24 ●62

You can store GpuMat in vector. GpuMat and Mat is smart pointers to data with reference counting. It doesn't create copy of data in copy constructor:

GpuMat a(100,100,CV_8U);
GpuMat b = a; // b and a shares the same data

edit flag offensive delete link

Comments

Thanks! Good to know :)

andreas_ ( 2012-10-23 08:55:29 -0600 )edit

add a comment

Links

Question Tools

Stats

Asked: 2012-10-22 16:46:54 -0600

Seen: 2,266 times

Last updated: Oct 24 '12

GpuMat and std::vector edit