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7. Color detection - HSV Space.py
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7. Color detection - HSV Space.py
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import numpy as np
import cv2
cap = cv2.VideoCapture(0)
while True:
ret, frame = cap.read()
# Hue - Color
# Saturation - Intensity
# Value - Brightness
# low_green = np.array([hue, saturation, value])
hsv_frame = cv2.cvtColor(frame, cv2.COLOR_BGR2HSV)
# Red Color Range and Mask
low_red = np.array([161, 155, 84])
high_red = np.array([179, 255, 255])
mask_red = cv2.inRange(hsv_frame, low_red, high_red)
# Only allowed color can be seen - represented by white
# Bitwise and to turn into proper color
red_frame = cv2.bitwise_and(frame, frame, mask = mask_red)
# Blue
low_blue = np.array([94, 80, 2])
high_blue = np.array([126, 255, 255])
mask_blue = cv2.inRange(hsv_frame, low_blue, high_blue)
blue_frame = cv2.bitwise_and(frame, frame, mask = mask_blue)
#Green
low_green = np.array([25, 52, 72])
high_green = np.array([102, 255, 255])
mask_green = cv2.inRange(hsv_frame, low_green, high_green)
green_frame = cv2.bitwise_and(frame, frame, mask = mask_green)
# !White
low = np.array([0, 42, 0])
hight = np.array([179, 255, 255])
mask = cv2.inRange(hsv_frame, low, hight)
no_white_frame = cv2.bitwise_and(frame, frame, mask = mask)
cv2.imshow("Red", red_frame)
cv2.imshow("Blue", blue_frame)
cv2.imshow("Green", green_frame)
cv2.imshow("NoWhite", no_white_frame)
if cv2.waitKey(1) & 0xFF == ord('q'):
break
cap.release()
cv2.destroyAllWindows()