我一直收到此错误。我已经从This website复制了代码并进行了更改,以使代码真正起作用。代码:
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)
[...]
完整的回溯:
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'
我看过here和here,但是我不知道如何解决这个问题,我也不认为这与我的问题有太大关系。如果这很明显,我很抱歉。我是一个完全的新手。谢谢
基本上,此错误告诉您您正在尝试显示空 / 不存在图像。请检查:
cv2.imread()
。 如果路径不正确,则img
变量将为空。您尝试的方式读取图像几乎是正确的:
img = cv2.imread(C:\Users\someone\Documents\python\____The Useless Installer____\PY\colorpic)
应该这样:
"\"
字符jpeg
,png
等。]。>'string'
或"string"
传递因此请尝试
img = cv2.imread("C:\\Users\\someone\\Documents\\python\\____The Useless Installer____\\PY\\colorpic.jpg")