Cv Mat Release

See also read note in c api functions cvretrieveframe and cv retrieveframe return image stored inside the video capturing structure.

Cv mat release.

The mat release is a consumer facing article that focuses on providing useful information rather than brand centric copy like a press release. The method decrements the reference counter associated with the matrix data. If you want to release the data pointed by a matrix header before the matrix destructor is called use cv mat release. With cv mat test it with mat empty.

A mat release on the other hand is a paid tactic in which media coverage is guaranteed to a network of publishers that partner with a mat release vendor. Here is how the matrix is stored. The next important thing to learn about the matrix class is element access. The matrix data will be deallocated when no one points to it.

Void cv mat release decrements the reference counter and deallocates the matrix if needed. It is not allowed to modify or release the image. Classes that create new mat should mat release or memory leaks are created there are methods that create mats as local variables and expect the jvm to gc them when they fall out of scope there s not reference.

You can copy the frame using cvcloneimage. The elements are stored in row major order row by. This is ok for normal objects but due to mat relying on finalize to clean up resources it will leak memory.