在 python 中使用 OpenCV 2.4.0 创建视频 [英] Creating a video using OpenCV 2.4.0 in python

问题描述

我正在尝试使用 python 2.7.2 中的 OpenCV 2.4.0 创建视频.但是avi文件大小为0.

I am trying to create a video using OpenCV 2.4.0 in python 2.7.2. But the avi file size is 0.

我的代码:

from cv2 import *

im1 = cv.LoadImage("1.jpg")

fps = 20
frame_size = cv.GetSize(im1)

#writer = cv.CreateVideoWriter("out.avi", CV_FOURCC('M', 'J', 'P', 'G'), fps, frame_size, True)

v = VideoWriter()

v.open("out.avi", cv.CV_FOURCC('F', 'M', 'P', '4'), fps, (800,600), True)
print v.isOpened()

isOpened() 总是返回 false.

再试一次:

#!/usr/bin/env python
import sys

from cv2 import *

im1 = cv.LoadImage("1.jpg")

if not im1:
    print "Error loading image"

im2 = cv.LoadImage("2.jpg")

if not im1:
    print "Error loading image"

fps = 20
frame_size = cv.GetSize(im1)

writer = cv.CreateVideoWriter("out.avi", cv.CV_FOURCC('M', 'J', 'P', 'G'), fps, frame_size, True)

if not writer:
    print "Error in creating video writer"
    sys.exit(1)
else:
    cv.WriteFrame(writer, im1)
    cv.WriteFrame(writer, im2)

del writer

没有错误，但输出为空.

No errors, but the output is empty.

我错过了什么?

推荐答案

import cv2

img1 = cv2.imread('1.jpg')
img2 = cv2.imread('2.jpg')
img3 = cv2.imread('3.jpg')

height , width , layers =  img1.shape

video = cv2.VideoWriter('video.avi',-1,1,(width,height))

video.write(img1)
video.write(img2)
video.write(img3)

cv2.destroyAllWindows()
video.release()

您想要做什么的简单代码.详情这里

A simple code for what you want to do. for details here

这篇关于在 python 中使用 OpenCV 2.4.0 创建视频的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！