Graduation mat inside std :: vector

Question

Using OpenCV 2.2 , I am trying to free up memory to trigger a release in Mat. inside std :: vector, for example:

std::vector < Mat > matVec;

However, it seems

for (int k = 0; k < matVec.size(); k++)
{

   matVec[k].release();

}

doesn't free memory (it still compiles, though).

I know that there is a new memory management in OpenCV 2.2 , but I could not determine the problem.

A similar example with a type IplImage*instead of Mat (using Mat cvReleaseImage()instead of a member function .release()) works fine.

Any clues?

+3

PV floripa May 23 '11 at 1:45

2 answers

etarion · Answer 1 · 2011-05-23T11:14:52+0000

.release()should be called only in exceptional circumstances, it is not for everyday use. Just clean the vector:

std::vector<cv::Mat>().swap(matVec);

Mat s, ( cv::Mat), , cv::Mat, IplImage, . - , ). , , .release() :

matVec[k] = cv::Mat();

Jacob · Answer 2 · 2011-05-23T01:54:41+0000

- matVec[k]. , matVec matVec vector of Mat* .

, OpenCV Mat Mat.