uca-net

A transparent TCP-based network bridge camera for remote access of libuca cameras.

Installation and usage

The only dependency is libuca itself and any camera you wish to access. Build the server and client with

$ mkdir build && cd build
$ cmake ..
$ make && (sudo) make install

Now, you can start a server on a remote machine with

$ ucad mock

and connect to it from any other machine, e.g.

$ uca-grab -p host=foo.bar.com:4567 -n 10 net            # grab ten frames
$ uca-camera-control -c net     # control graphically

or from Concert

from concert.devices.cameras.uca import Camera

camera = Camera('net', {'host': 'foo.bar:1234'})

with camera.recording():
    print(camera.grab())

Besides using the host property one can also set the UCA_NET_HOST environment variable to set the host and port of the remote ucad service.

ucad adds the properties mirror and rotate to the camera properties. These propterties are only added to the metadata of the frames to tell the receiver if the frames should be rotated and or mirrored. This is an example implementation for the receiver in python:

def convert_image(image, mirror: bool, rotate: int):
   if mirror:
      image = np.fliplr(image)
   if rotate:
      image = np.rot90(image, k=rotate)
   return image