Python & OpenCV
Dears,
I try to use OpenCV in Python, and running example such as
import numpy as np
import cv2
img = cv2.imread('messi5.jpg',0)
cv2.namedWindow('image', cv2.WINDOW_NORMAL)
cv2.imshow('image',img)
cv2.waitKey(0)
cv2.destroyAllWindows()import numpy as np
import cv2
img = cv2.imread('messi5.jpg',0)
cv2.namedWindow('image', cv2.WINDOW_NORMAL)
cv2.imshow('image',img)
cv2.waitKey(0)
cv2.destroyAllWindows()
Unfortunately I'm not able to dislpay image and getting errors such as
Traceback (most recent call last):
File "<ipython-input-1-0d251b5710ac>", line 1, in <module>
runfile('C:/Python27/Scripts/untitled1.py', wdir='C:/Python27/Scripts')
File "C:\Python27\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 685, in runfile
execfile(filename, namespace)
File "C:\Python27\lib\site-packages\spyderlib\widgets\externalshell\sitecustomize.py", line 71, in execfile
exec(compile(scripttext, filename, 'exec'), glob, loc)
File "C:/Python27/Scripts/untitled1.py", line 14, in <module>
cv2.imshow('image',img)
error: ..\..\..\modules\highgui\src\window.cpp:269: error: (-215) size.width>0 && size.height>0 in function cv::imshow
what;s the propoer way to handle images and displaying hem in python?
Thank you. Peter
In your code you've copied it twice... You may want to remove the first copy. One thing to try: remove this line and run the code
cv2.namedWindow('image', cv2.WINDOW_NORMAL)I've ran the code without this line fine.file not found, your image is empty, thus imshow() complains.
learn to add checks, whenever you load resources.