memory deallocation

asked 2016-09-27 15:06:02 -0600

Nabeel
36 ●2 ●5

OpenCV matrices can be declared in various ways. I am looking to declare openCV matrices in a main class and then populate them in member functions.

My question : I believe that openCV matrices will be deallocated automatically once the main class object goes out of scope !! Which means that I do not have to manually call release function of openCV matrices

Please correct me if I am wrong

Thanks

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answered 2016-09-28 03:18:01 -0600

kbarni

4134 ●1 ●13 ●49

You are right. OpenCV handles memory management for Mat objects.

OpenCV manages separately the Mat object and the data, so several Mat objects can share the same data (e.g. submatrices). OpenCV keeps track if data is still used, and when the data is not referenced anymore, it gets freed.