OpenCV 4 with Python Blueprints - Second Edition

Utilizing OpenNI-compatible sensors

To use an OpenNI-compatible sensor, you must first make sure that OpenNI2 is installed and that your version of OpenCV was built with the support of OpenNI. The build information can be printed as follows:

import cv2print(cv2.getBuildInformation())

If your version was built with OpenNI support, you will find it under the Video I/O section. Otherwise, you will have to rebuild OpenCV with OpenNI support, which is done by passing the -D WITH_OPENNI2=ON flag to cmake.

After the installation process is complete, you can access the sensor similarly to other video input devices, using cv2.VideoCapture. In this app, in order to use an OpenNI-compatible sensor instead of a Kinect 3D sensor, you have to cover the ...