I get the following error
init_DRLagent:40: 'NoneType' object has no attribute 'imgmsg_to_cv2'
on the following code
# internal keras-rl agent to persist
@nrp.MapVariable("agent", initial_value=None, scope=nrp.GLOBAL)
@nrp.MapVariable("bridge", initial_value=None, scope=nrp.GLOBAL)
# subscribe to images from the robot
@nrp.MapRobotSubscriber("camera", Topic('/husky/camera', sensor_msgs.msg.Image))
@nrp.MapRobotSubscriber("vel", Topic('/husky/cmd_vel', geometry_msgs.msg.Twist))
@nrp.Robot2Neuron()
def init_DRLagent(t, agent, bridge, camera, vel):
# some code...
import numpy as np
# OpenCV bridge for ROS <-> CV image conversion
from cv_bridge import CvBridge
bridge.value = CvBridge()
# convert the ROS image to an OpenCV image and Numpy array
cv_image = bridge.value.imgmsg_to_cv2(camera.value, "rgb8")
numpy_image = np.expand_dims(cv_image, axis=0)
obs_shape = numpy_image.shape
nb_actions = 2
...
don’t know where to go with this, as I can from cv_bridge import CvBridge
in my enviroment and access the member function imgmsg_to_cv2(...)
would appreciate any help