Image Acquisition
Acquire images from Ryze drone FPV camera
Create a camera object to establish a connection to a
                  Ryze drone FPV camera. Use snapshot function to acquire a
               single image, or set up a loop to acquire multiple images. Use the
                  preview function to view the camera's live video stream.
Functions
| camera | Connection to Ryze drone's camera | 
| preview | Preview live video data from Ryze drone camera | 
| snapshot | Acquire single image frame from Ryze drone camera | 
| closePreview | Close Ryze drone camera preview window | 
Troubleshooting
Troubleshoot Video Stream Access
The Ryze Tello drone streams FPV video to the UDP port number 11111.
