OpenCV resize fails on large image with “error: (-215) ssize.area() > 0 in function cv::resize”

Question

I\'m using OpenCV 3.0.0 and Python 3.4.3 to process a very large RGB image (107162,79553,3). While I\'m trying to resize it using the following code:

import         


        

Answer 1

Turns out for me this error was actually telling the truth - I was trying to resize a Null image, which was usually the 'last' frame of a video file, so the assertion was valid.

Now I have an extra step before attempting the resize operation, which is to do the assertion myself:

def getSizedFrame(width, height):
"""Function to return an image with the size I want"""    
    s, img = self.cam.read()

    # Only process valid image frames
    if s:
            img = cv2.resize(img, (width, height), interpolation = cv2.INTER_AREA)
    return s, img

Now I don't see the error.