FindContours support only 8uC1 and 32sC1 images

Question

i hava problem in fire detection my code is :

ret, frame = cap.read()
lab_image = cv2.cvtColor(frame, cv2.COLOR_BGR2LAB)
L , a , b = cv2.split(lab_image)
ret,t         


        

Answer 1

cv2.cvtColor(img, cv2.COLOR_BGR2GRAY);

Use this line on the image you wish to find contours on and it should work, because it will convert your image to 8UC1 format (grayscale).