Question

import numpy as np
import cv2
cap = cv2.VideoCapture(0)
fourcc = cv2.cv.CV_FOURCC(*'XVID')
out = cv2.VideoWriter('drop.avi', fourcc, 20.0, (640,480))

while cv2.VideoCaptured('drop.avi') is True:
    # Captures frame x frame
    ret , frame = cap.read()
    #Frame operations
    gray = cv2.cvtColor(frame, cv2.COLOR_BGR2GRAY)
    name = "frame%d.jpg"%count #saves frames and a JPEG image file
    cv2.imwrite(name, frame)

    #Display the resulting frame
    cv2.imshow('frame', gray)
    if cv2.waitKey(30):`enter code here`
    break

    cv.VideoCapture.release()

当我希望代码严格地从文件中读取视频而不是从我的网络摄像头。我知道我需要删除cap = cv2.VideoCpature(0)。但是，我收到错误'module' object has no attribute 'VideoCapture'。这段代码来自官方的OpenCV教程，所以我不确定是什么问题。我猜是有些东西不在正确的文件夹中。

Answer 1

要在视频中阅读的正确代码段是：

#container {
  height: 180px;
  display: flex;
  flex-flow: row;
  align-items: stretch;
  border: 1px dashed gray;
}
table {
  display: flex;
  flex-flow: row;
  margin: 10px;
  overflow: scroll;
  border: 1px dashed blue;
}
tbody {
  display: block; /* Disable tabular layout, and make <tbody> a flex item */
  margin: auto 0; /* Push to the center (vertically) */
}
td {
  height: 10px;
  width: 100px;
  border: 1px solid red;
}
#container div {
  flex: 1;
  margin: 10px;
  border: 1px dashed red;
}

模块对象没有属性'VideoCapture'

1 个答案: