This method is invoked when camera preview has started. After this method is invoked the frames will start to be delivered to client via the onCameraF

This method is invoked when camera preview has been stopped for some reason. No frames will be delivered via onCameraFrame() callback after this metho

* Generates a random double value. */ * Generates a random double value. * @param high Upper limit * @param low Lower limit * @return Random doubl

Draws a simple, thick, or filled up-right rectangle. The function cv::rectangle draws a rectangle outline or a filled rectangle whose two opposite co

Frees any allocated memory, and sets the value to NULL.

This method is provided for clients, so they can signal camera permission has been granted. The actual onCameraViewStarted callback will be delivered

@param m input multi-channel array. @param mv output vector of arrays; the arrays themselves are reallocated, if needed.

check if a bit is set * @param index the index of the bit to check * @return true if the bit is set */

* The amount of memory (in bytes) this index uses. */

Absolute values **/

To float **/

Multiply and expand

Multiply and expand

Some frequent operations **/

@brief Zero constant */