Cv Mat Release

The elements are stored in row major order row by.

Cv mat release.

Void cv mat release decrements the reference counter and deallocates the matrix if needed. See also read note in c api functions cvretrieveframe and cv retrieveframe return image stored inside the video capturing structure. The matrix data will be deallocated when no one points to it. The next important thing to learn about the matrix class is element access.

Mat 이미지를 해제하려고하지만 결과가 좋지 않습니다. Cv videocapture release closes video file or capturing device. It is not allowed to modify or release the image. Here is how the matrix is stored.

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

When the reference counter reaches 0 the matrix data is deallocated and the data and the reference counter pointers are set to null s. You can copy the frame using cvcloneimage. This is ok for normal objects but due to mat relying on finalize to clean up resources it will leak memory.