属性错误：'tuple'对象在 opencv2 中没有属性'copy'

Question

我最近一直在使用OpenCV-python来做一些增强现实，我最近遇到了这个错误:

imgAug = imgWebcam.copy()
AttributeError: 'tuple' object has no attribute 'copy'

import cv2
import numpy as np

cap = cv2.VideoCapture(0)
imgTarget = cv2.imread('TargetImage.jpg')
myVid = cv2.VideoCapture('video.mp4')

detection = False
frameCounter = 0

success, imgVideo = myVid.read()
imgWebcam = cap.read()
imgAug = imgWebcam.copy()

有办法纠正这个吗?

Answer 1

cap.read()返回元组，因此必须像myVid.read()那样解包。

success, imgVideo = myVid.read()
ret, imgWebcam = cap.read() # unpacking
imgAug = imgWebcam.copy()