去哪里找Python中的VideoCapture库

发布网友发布时间：2022-04-23 07:38

共3个回答

热心网友时间：2022-05-11 00:00

使用OpenCV库
import cv2
就能处理视频信息了

热心网友时间：2022-05-11 01:18

这个网站有很多python 库，一般pip找不到的话，进网站ctrl+f 搜索就好了。

Unofficial Windows Binaries for Python Extension Packages
by Christoph Gohlke, Laboratory for Fluorescence Dynamics, University of California, Irvine.
This page provides 32- and 64-bit Windows binaries of many scientific open-source extension packages for the official CPython distribution of the Python programming language.
The files are unofficial (meaning: informal, unrecognized, personal, unsupported, no warranty, no liability, provided "as is") and made available for testing and evaluation purposes.
If downloads fail reload this page, enable JavaScript, disable download managers, disable proxies, clear cache, and use Firefox. Please only download files manually as needed.
Most binaries are built from source code found on PyPI or in the projects public revision control systems. Source code changes, if any, have been submitted to the project maintainers or are included in the packages.
Refer to the documentation of the indivial packages for license restrictions and dependencies.
Use pip version 8 or newer to install the downloaded .whl files. This page is not a pip package index.
Many binaries depend on numpy-1.13+mkl and the Microsoft Visual C++ 2008 (x64, x86, and SP1 for CPython 2.7), Visual C++ 2010 (x64, x86, for CPython 3.4), or the Visual C++ 2015 (x64 and x86 for CPython 3.5 and 3.6) redistributable packages.
Install numpy+mkl before other packages that depend on it.
The binaries are compatible with the most recent official CPython distributions on Windows >=6.0. Chances are they do not work with custom Python distributions included with Blender, Maya, ArcGIS, OSGeo4W, ABAQUS, Cygwin, Pythonxy, Canopy, EPD, Anaconda, WinPython etc. Many binaries are not compatible with Windows XP or Wine.
The packages are ZIP or 7z files, which allows for manual or scripted installation or repackaging of the content.
The files are provided "as is" without warranty or support of any kind. The entire risk as to the quality and performance is with you.
The opinions or statements expressed on this page should not be taken as a position or endorsement of the Laboratory for Fluorescence Dynamics or the University of California.

python有什么操作摄像头的模块么

VideoCapture 模块，可以操作捕捉摄像头进行截图，官网http://videocapture.sourceforge.net/

Python之OpenCV把一个视频切分成多个等长视频

import cv2 cap = cv2.VideoCapture('E:/极乐净土.mp4')#导入路径 j=1 i=1 fourcc = cv2.VideoWriter_fourcc(*'XVID')fps =cap.get(cv2.CAP_PROP_FPS)size = (int(cap.get(cv2.CAP_PROP_FRAME_WIDTH)), int(cap.get(cv2.CAP_PROP_FRAME_HEIGHT)))out = cv2.VideoWriter('E:/新建文...

Python计算机视觉-使用OpenCV读写视频

在Python中，OpenCV提供了强大的功能来处理视频文件。首先，让我们了解如何使用cv2.VideoCapture和cv2.VideoWriter这两个核心类进行视频的读取和写入。这两个类使得处理视频流与图像文件类似，主要是通过循环读取帧并进行相应的操作。1. 读写视频代码示例展示了如何从磁盘文件读取视频并显示其内容。OpenCV的Vide...

【Python】Opencv调用摄像头问题

使用 cv2.VideoCapture(idx) 调用摄像头时要知道摄像头设备的索引位置，来理清寻找思路。首先去设备管理器查看硬件运行是否正常，或者使用其他调用摄像头的程序测试，如360魔法摄像头，微信、qq视频等。然后，使用opencv调用摄像头。一般来说，内置摄像头为 idx = 0 ，外部摄像头为 idx = 1 ；但是...

Python3 OpenCV3图像处理-色彩空间

python import cv2 as cv import numpy as np def extract_object_demo(image):capture = cv.VideoCapture("src/video.mp4")while(True):ret, frame = capture.read()if not ret:break;hsv = cv.cvtColor(frame, cv.COLOR_BGR2HSV)lower_hsv = np.array([37, 43, 46])upper_hsv = np....

如何用python实现视频关键帧提取并保存为图片

import cv2 vc = cv2.VideoCapture('Test.avi') #读入视频文件 c=1 if vc.isOpened(): #判断是否正常打开 rval , frame = vc.read()else:rval = False timeF = 1000 #视频帧计数间隔频率 while rval: #循环读取视频帧 rval, frame = vc.read()if(c%timeF == 0): #每隔timeF帧...

python如何能采集多个摄像头的数据

self.cap3 = cv.VideoCapture(0)self.cap3.set(3, 640)self.cap3.set(4, 480)ret, self.img3=self.cap3.read()time.sleep(1)也许需要延迟，等他准备好初始化一个定时器，在其他条件下用的 self.timer = QTimer(self)实例化一个线程 self.work0= WorkThread()self.work0.trigger....

python用opencv库和OS库如何获取视频并将其使用上采样的当然拖充负...

后面的没看懂 opencv打开视频可以通过 cap=cv2.VideoCapture(path)path 可以是文件路径，url等网上可以找到的 ret，frame=cap.read()来读照片，ret是返回是否获取成功

如何用编程制作视频

使用选定的库，可以通过编程读取视频文件。例如，在Python中使用OpenCV的`cv2.VideoCapture`函数可以轻松读取视频文件。读取视频后，可以对每一帧图像进行处理，比如调整亮度、对比度，应用滤镜效果，或者进行图像识别和分析等。这些处理可以通过OpenCV的各种图像处理函数来实现。此外，还可以利用moviepy对视频进行...

python如何用opencv把一个视频按每10秒一小段切下来

你好，下面是相应的一个代码，你可以参考一下：import cv2import os# 先导入openCV# 将一个长的视频缩短，按照比例缩短，只保存其中的一部分# 如下面代码就是将一个长视频每10秒取10秒，合并成一个短视频cap = cv2.VideoCapture('myvideo.avi')if not cap.isOpened(): print('video is not ...

会员库在哪里找去库中国 ad找不到库去库存不敢去地库去库存网库去点大G地库下不去去北库