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This is a python 2.7 sample to capture the top camera of Aldebaran robot Pepper or NAO. It displays a image with openCV imshow. Press the [ESC] key to exit the capturing
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# vim: set fileencoding=utf-8 : | |
import sys | |
import numpy as np | |
import cv2 | |
from naoqi import ALProxy | |
if(len(sys.argv) <= 2): | |
print "parameter error" | |
print "python " + sys.argv[0] + " <ipaddr> <port>" | |
sys.exit() | |
ip_addr = sys.argv[1] | |
port_num = int(sys.argv[2]) | |
# get NAOqi module proxy | |
videoDevice = ALProxy('ALVideoDevice', ip_addr, port_num) | |
# subscribe top camera | |
AL_kTopCamera = 0 | |
AL_kQVGA = 1 # 320x240 | |
AL_kBGRColorSpace = 13 | |
captureDevice = videoDevice.subscribeCamera( | |
"test", AL_kTopCamera, AL_kQVGA, AL_kBGRColorSpace, 10) | |
# create image | |
width = 320 | |
height = 240 | |
image = np.zeros((height, width, 3), np.uint8) | |
while True: | |
# get image | |
result = videoDevice.getImageRemote(captureDevice); | |
if result == None: | |
print 'cannot capture.' | |
elif result[6] == None: | |
print 'no image data string.' | |
else: | |
# translate value to mat | |
values = map(ord, list(result[6])) | |
i = 0 | |
for y in range(0, height): | |
for x in range(0, width): | |
image.itemset((y, x, 0), values[i + 0]) | |
image.itemset((y, x, 1), values[i + 1]) | |
image.itemset((y, x, 2), values[i + 2]) | |
i += 3 | |
# show image | |
cv2.imshow("pepper-top-camera-320x240", image) | |
# exit by [ESC] | |
if cv2.waitKey(33) == 27: | |
break |
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Could you please assist me in how I can access to the Pepper camera over HTTP? How I can see what Pepper is seeing on a web-page?