Extract blue using OpenCV capture camera image under Python3

The work requires the camera to be debugged, the Python platform greatly improves debugging efficiency.

Find the segment code from the net, you can key out the blue from the camera image.

Import Cv2
Import NumPy as NP

Cap = Cv2. Videocapture (0)
For I in range (0, 19):
Print (Cap.get (i))
while (1):
RET, frame = Cap.read ()
HSV = Cv2.cvtcolor (frame, cv2. COLOR_BGR2HSV)

Lower_blue = Np.array ([100, 47, 47])
Upper_blue = Np.array ([124, 255,255])

Mask = Cv2.inrange (HSV, Lower_blue, Upper_blue) #蓝色掩模

res = Cv2.bitwise_and (frame, frame, mask = mask)

Cv2.imshow (U "Capture", frame)
Cv2.imshow (U "Mask", mask)
Cv2.imshow (U "res", RES)

Key = Cv2.waitkey (1)
If key & 0xff = = Ord (' q ') or key = = 27:
Print (Frame.shape,ret)
Break
Cap.release ()
Cv2.destroyallwindows ()

Below is the range of HSV color components truncated from the Wangyblzu blog

Https://www.cnblogs.com/wangyblzu/p/5710715.html

Three result diagram

Technorati TAGS:PYTHON3,OPENCV

Extract blue using OpenCV capture camera image under Python3