我正在试着做一个ar鼠标(相机可以检测到你的手,而不是你的手指可以是鼠标)。但当检查哪些手指向上时,我会出错。制作这个程序时,我遵循了这个教程:https://www.youtube.com/watch?v=8gPONnGIPgw&t=332s。当我这样做的时候,我做了一件不同的事情,那就是我没有像他那样制作一个名为HandTrackingModule.py的程序文件,并且导入了它,但我只是从cvzone.HandTrackingModule导入了HandDetector,它应该也能工作
这就是错误:
fingers=detector.fingersUp()
在fingersUp中 回指
取消绑定LocalError:赋值前引用的局部变量“fingers”
代码如下:
import cv2
import numpy as np
import time
import autopy
from cvzone.HandTrackingModule import HandDetector
wCam, hCam = 640, 480
frameR = 100 # Frame Reduction
smoothening = 7
pTime = 0
plocX, plocY = 0, 0
clocX, clocY = 0, 0
cap = cv2.VideoCapture(0)
cap.set(3, wCam)
cap.set(4, hCam)
detector = HandDetector(detectionCon=0.7,maxHands=1)
wScr, hScr = autopy.screen.size()
while True:
# 1. Find hand Landmarks
success, img = cap.read()
img = detector.findHands(img)
lmList, bbox = detector.findPosition(img)
# 2. Get the tip of the index and middle fingers
if len(lmList) != 0:
x1, y1 = lmList[8][:1]
x2, y2 = lmList[12][:1]
# 3. Check which fingers are up
fingers = detector.fingersUp() #------------------this is where the error happens
print(fingers)
cv2.rectangle(img, (frameR, frameR), (wCam - frameR, hCam - frameR),
(255, 0, 255), 2)
# 4. Only Index Finger : Moving Mode
if fingers[1] == 1 and fingers[2] == 0:
# 5. Convert Coordinates
x3 = np.interp(x1, (frameR, wCam - frameR), (0, wScr))
y3 = np.interp(y1, (frameR, hCam - frameR), (0, hScr))
# 6. Smoothen Values
clocX = plocX + (x3 - plocX) / smoothening
clocY = plocY + (y3 - plocY) / smoothening
# 7. Move Mouse
autopy.mouse.move(wScr - clocX, clocY)
cv2.circle(img, (x1, y1), 15, (255, 0, 255), cv2.FILLED)
plocX, plocY = clocX, clocY
# 8. Both Index and middle fingers are up : Clicking Mode
if fingers[1] == 1 and fingers[2] == 1:
# 9. Find distance between fingers
length, img, lineInfo = detector.findDistance(8, 12, img)
# 10. Click mouse if distance short
if length < 40:
cv2.circle(img, (lineInfo[4], lineInfo[5]),
15, (0, 255, 0), cv2.FILLED)
autopy.mouse.click()
# 12. Display
cv2.imshow("Image", img)
cv2.waitKey(1)
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