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# Simple example Robot Raconteur webcam client
# This program will capture a frame from both webcams and show it
# on the screen
from RobotRaconteur.Client import *
import time
import numpy
import cv2
import sys
# Main program
def main():
url = 'rr+tcp://localhost:22355?service=webcam'
if (len(sys.argv) >= 2):
url = sys.argv[1]
# Start up Robot Raconteur and connect, standard by this point
c1 = RRN.ConnectService(url)
# Save image to buffer
size = c1.capture_frame_to_buffer()
# Read the data from the "buffer "memory. For this example just read the
# entire buffer
l = c1.buffer.Length
data = numpy.zeros(l, dtype="u1")
c1.buffer.Read(0, data, 0, l)
frame1 = data.reshape([size.height, size.width, 3], order='C')
cv2.imshow("buffer", frame1)
# Read segment from the "multidimbuffer" and display the "red" channel
bufsize = c1.multidimbuffer.Dimensions
print(bufsize)
# create a smaller buffer with 1 channel
segdata = numpy.zeros([100, 100, 1], dtype="u1")
c1.multidimbuffer.Read([10, 10, 0], segdata, [0, 0, 0], [100, 100, 1])
cv2.imshow("multidimbuffer", segdata)
# CV wait for key press on the image window and then destroy
cv2.waitKey(0)
cv2.destroyAllWindows()
if __name__ == '__main__':
main()
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