Difference between revisions of "Color Picker - Code"
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Return back to project page: [[Spike Prime - Line Following Car - Jakub Vojtek| Line Following Car - Jakub Vojtek]] | Return back to project page: [[Spike Prime - Line Following Car - Jakub Vojtek| Line Following Car - Jakub Vojtek]] | ||
− | Python code for the Color | + | Python code for the Color Picker: |
<syntaxhighlight lang=python> | <syntaxhighlight lang=python> | ||
import cv2 | import cv2 |
Revision as of 15:37, 22 May 2024
Return back to project page: Line Following Car - Jakub Vojtek
Python code for the Color Picker:
import cv2
import numpy as np
frameWidth = 640
frameHeight = 480
cap = cv2.VideoCapture(0)
cap.set(3, frameWidth)
cap.set(4, frameHeight)
def empty(a):
pass
cv2.namedWindow("HSV")
cv2.resizeWindow("HSV", 640, 240)
cv2.createTrackbar("HUE Min", "HSV", 0, 179, empty)
cv2.createTrackbar("HUE Max", "HSV", 179, 179, empty)
cv2.createTrackbar("SAT Min", "HSV", 0, 255, empty)
cv2.createTrackbar("SAT Max", "HSV", 255, 255, empty)
cv2.createTrackbar("VALUE Min", "HSV", 0, 255, empty)
cv2.createTrackbar("VALUE Max", "HSV", 255, 255, empty)
while True:
_, img = cap.read()
imgHsv = cv2.cvtColor(img, cv2.COLOR_BGR2HSV)
h_min = cv2.getTrackbarPos("HUE Min", "HSV")
h_max = cv2.getTrackbarPos("HUE Max", "HSV")
s_min = cv2.getTrackbarPos("SAT Min", "HSV")
s_max = cv2.getTrackbarPos("SAT Max", "HSV")
v_min = cv2.getTrackbarPos("VALUE Min", "HSV")
v_max = cv2.getTrackbarPos("VALUE Max", "HSV")
print(h_min)
lower = np.array([h_min, s_min, v_min])
upper = np.array([h_max, s_max, v_max])
mask = cv2.inRange(imgHsv, lower, upper)
result = cv2.bitwise_and(img, img, mask=mask)
mask = cv2.cvtColor(mask, cv2.COLOR_GRAY2BGR)
hStack = np.hstack([img, mask, result])
cv2.imshow('Horizontal Stacking', hStack)
if cv2.waitKey(1) and 0xFF == ord('q'):
break
cap.release()
cv2.destroyAllWindows()