Opencv4+python写图像为视频

梦里梦外; 2022-12-31 10:29 150阅读 0赞

写这篇的原因，是发现cv2.VideoWriter\_fourcc(\*'XVID')设置很多比如\*'mpeg'，('M','J','P','G')等，都不能成功写入或者是无法打开视频并正常播放。所以整理一下。代码主要参考文末两个链接，感谢前人分享。

# 0.环境 #

windows/ubuntu
    python3.6
    opencv-python==4.1.0.25

# 1.实现 #

# -*- coding: UTF-8 -*-
    '''
    @author: mengting gu
    @contact: 1065504814@qq.com
    @time: 2020/12/29 14:14
    @file: jpg2avi.py
    @desc: 
    '''
    
    import os
    import cv2
    import platform
    
    sysstr = platform.system()
    if (sysstr == "Windows"):
        path = "/Image226_result/" # '需要调用的图片路径 例如：C:/picture/'
    else:
        path = "/Image226_result/"
    filelist = os.listdir(path)
    
    fps = 8 #视频每秒24帧
    size = (640, 480) #需要转为视频的图片的尺寸
    #可以使用cv2.resize()进行修改
    
    video = cv2.VideoWriter("VideoTest1.mp4", cv2.VideoWriter_fourcc(*'XVID'), fps, size)
    #视频保存在当前目录下
    
    for item in filelist:
        if item.endswith('.jpg'):
            print("item : {}".format(item))
        #找到路径中所有后缀名为.png的文件，可以更换为.jpg或其它
            item = path + item
            img = cv2.imread(item)
            img = cv2.resize(img, (640, 480))
            # cv2.imshow('img', img)
            # cv2.waitKey(int(1000/int(fps)))
            video.write(img)
    
    video.release()
    
    if (sysstr == "Windows"):
        cv2.destroyAllWindows()

# 参考 #

[1.https://www.cnblogs.com/Jinyublog/p/9118068.html][1.https_www.cnblogs.com_Jinyublog_p_9118068.html]

[2.https://www.cnblogs.com/noluye/p/11446146.html][2.https_www.cnblogs.com_noluye_p_11446146.html]

[1.https_www.cnblogs.com_Jinyublog_p_9118068.html]: https://www.cnblogs.com/Jinyublog/p/9118068.html
[2.https_www.cnblogs.com_noluye_p_11446146.html]: https://www.cnblogs.com/noluye/p/11446146.html