# OpenCV compatibility example ## Introduction The OpenCV compatibility example shows how to convert the Azure Kinect calibration type k4a_calibration_t into the corresponding data structures of OpenCV. The code demonstrates the use of k4a_calibration_3d_to_2d() to transform five 3D-coordinates of the color camera into pixel-coordinates of the depth camera. We then show how the same operation is accomplished using the corresponding OpenCV function projectPoints(). If the user has OpenCV installed, the OpenCV-specific code can be enabled by uncommenting the HAVE_OPENCV pound define. The OpenCV code has been tested using OpenCV 4.1.1. ## Usage Info opencv_example.exe Example: opencv_example.exe