2015-04-02 00:20:20 -0600
| asked a question | beginner errors with Raspberry PI / Opencv / Python - I've installed today opencv 2.4.10
I'm using some standard code from the tutorial: import numpy as np
import sys
sys.path.append('/usr/local/lib/python2.7/site-packages') import cv2
cap = cv2.VideoCapture(0)
# Capture frame-by-frame
ret, frame = cap.read()
# Our operations on the frame come here
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
# Display the resulting frame
cv2.imshow('frame',gray)
#cv2.imwrite("I2.jpg",img)
# When everything done, release the capture
cap.release()
cv2.destroyAllWindows()
* I'm getting the following error messages: OpenCV Error: Assertion failed (scn == 3 || scn == 4) in cvtColor, file /home/pi/opencv-2.4.10/modules/imgproc/src/color.cpp, line 3739
Traceback (most recent call last):
File "I2_video.py", line 14, in <module>
gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
cv2.error: /home/pi/opencv-2.4.10/modules/imgproc/src/color.cpp:3739: error: (-215) scn == 3 || scn == 4 in function cvtColor |