imgd.py

import cv2
# img=cv2.imread("image.png")
# print(img)
# cv2.imshow("Img",img)
# cv2.waitKey(0)
cap=cv2.VideoCapture(0)#capturing/creating frame
cap.set(cv2.CAP_PROP_FRAME_WIDTH,1280)
cap.set(cv2.CAP_PROP_FRAME_HEIGHT, 720)
while True:
    _, frame=cap.read()
    hsv_frame=cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
    height, width, _=frame.shape
    
    cx=int(width/2)
    cy=int(height/2)

    pixel_centre=hsv_frame[cy,cx]
    hue_value=pixel_centre[0]

    color="UNDEFINED"
    if hue_value<5:
        color="RED"
    elif hue_value<22:
        color="ORANGE"
    elif hue_value<33:
        color="YELLOW"
    elif hue_value<78:
        color="GREEN"
    elif hue_value<131:
        color="BLUE"
    elif hue_value<167:
        color="VIOLET"
    else:
        color="RED"
    pixel_centre_bgr=frame[cy,cx]
    cv2.putText(frame, color, (10,50), 0, 1, (255,0,0), 2)
    cv2.circle(frame,(cx, cy), 5, (255,0,0), 3)

    cv2.imshow("Frame",frame)
    key=cv2.waitKey(1)
    if key==27:#27 is the ascii value for esc
        break
cap.release()
cv2.destroyAllWindows()