cv2.error: OpenCV(4.5.2) C:\\Users\\ ... \\modules\\imgproc\\src\\resize.cpp:3929: error: (-215:Assertion failed) func != 0 in function 'cv::hal: :调整大小'

Question

I tried to run the folowing code:

a = np.array([[1,0],[0,0]])
a = cv2.resize(a , (400,400))
cv2.imshow('Image', a)
cv2.waitKey(0)
cv2.destroyAllWindows

and got this error:

cv2.error: OpenCV(4.5.2) C:\\Users\\runneradmin\\AppData\\Local\\Temp\\pip-req-build-_8k9tw8n\\opencv\\modules\\imgproc\\src\\resize.cpp:3929: error: (-215:Assertion failed) func != 0 in function 'cv::hal::resize'

couldn't find any similar quenstion

Answer 1

the error is from the resize function, it needs to be a dtype=uint8 type array. there is a pretty solid answer here

update me if it worked :)