I've been getting this error. I have copied the code from This website and making changes so that the code actually works. The code:
ap = argparse.ArgumentParser() ap.add_argument("-i", "--image", help="Image Path") args = vars(ap.parse_args()) img_path = args['image'] #Reading image with opencv img = cv2.imread(img_path) #Reading csv file with pandas and giving names to each column index=["color","color_name","hex","R","G","B"] csv = pd.read_csv('colors.csv', names=index, header=None) cv2.namedWindow('image') cv2.setMouseCallback('image', draw_function) while(1): #This is error line cv2.imshow("image",img) [...]
Traceback (most recent call last): File "C:\Users\someone\Documents\python\____The Useless Installer____\PY\color_detection.py", line 39, in <module> cv2.imshow("image",img) cv2.error: OpenCV(4.2.0) C:\projects\opencv-python\opencv\modules\highgui\src\window.cpp:376: error: (-215:Assertion failed) size.width>0 && size.height>0 in function 'cv::imshow'
I've looked here and here but I don't understand how to fix this and I don't think it relates to my question that much either. If this is obvious I am very sorry. I'm a complete newbie at this. Thanks