How to read, write and play video using OpenCV in python

总结来说，通过OpenCV和Python，我们可以轻松地保存mp4视频，同时进行各种图像处理操作，如人脸检测。理解并掌握`VideoWriter`类以及相关的编码概念是实现这一 ...

C# 利用Opencv拉取Rtsp流并保存成MP4视频，已实现添加水印，视频保存，流参数设置，集成USB扫码，并将码作为文件路径，保存路径可设置。

To capture a video, you need to create a VideoCapture object. Its argument can be either the device index or the name of a video file.

The attached Python fails to write the *.mp4 file, but succeeds to write the *.avi file when the corresponding line is un-commented.

OpenCV 是一個跨平台的電腦視覺套件，全名為Open Source Computer Vision Library。本文將會使用Python-OpenCV 來進行讀取、顯示、儲存影像和影片。 在使用 ...

How to save video capture in mp4 format with opencv python · cv2.VideoWriter(...) but not all cobinations of codec and file extension can work.

I want to capture video from a webcam and save it to an mp4 file using opencv. I found example code on stackoverflow (below) that works great.

這篇教學會介紹OpenCV 裡的VideoWriter() 方法，透過這個方法，可以將讀取到的影片( 電腦中的影片或攝影鏡頭拍攝的影片)，進行轉檔或轉換色彩，儲存成新的影片檔。

Hi all, I'm running into a problem when reading mp4 video files using OpenCV. I'm using the code below to read the video.

解析¶. opencv 使用 ffmpeg 进行视频流的编解码，对于 h264 格式视频，需要额外安装 openh264