好吧，我在@Miki的幫助下在評論中找到了解決方案。在

代碼幾乎沒有變化：lowerb = np.array([lH, lS, lV], np.uint8)

upperb = np.array([uH, uS, uV], np.uint8)

還有

^{pr2}$

上述代碼更改解決了這個問題。在

完整的工作代碼如下import serial

import numpy as np

import cv2

# dummy function

def nothing(x):

pass

# Track bar window

cv2.namedWindow('thresh')

# Track bars

cv2.createTrackbar('lH','thresh', 0, 180, nothing)

cv2.createTrackbar('lS', 'thresh', 0, 255, nothing)

cv2.createTrackbar('lV', 'thresh', 0, 255, nothing)

cv2.createTrackbar('uH', 'thresh', 0, 180, nothing)

cv2.createTrackbar('uS', 'thresh', 0, 255, nothing)

cv2.createTrackbar('uV', 'thresh', 0, 255, nothing)

# capture video

cap = cv2.VideoCapture(0)

while True:

# Read from camera

source, frame = cap.read()

if not source:

break

# converting image color to HSV color space

cv2.cvtColor(frame, cv2.COLOR_RGB2HSV, frame, 0)

# Getting values from track bars

lH = cv2.getTrackbarPos('lH', 'thresh')

uH = cv2.getTrackbarPos('uH', 'thresh')

lS = cv2.getTrackbarPos('lS', 'thresh')

uS = cv2.getTrackbarPos('uS', 'thresh')

lV = cv2.getTrackbarPos('lV', 'thresh')

uV = cv2.getTrackbarPos('uV', 'thresh')

lowerb = np.array([lH, lS, lV], np.uint8)

upperb = np.array([uH, uS, uV], np.uint8)

frame = cv2.inRange(frame, lowerb, upperb)

cv2.flip(frame, 1, frame)

cv2.imshow('thresh', frame)

if cv2.waitKey(1) & 0xFF == ord('q'):

break

cap.release()

cv2.destroyAllWindows()

總結

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