1. 安装Opencv包
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pip install opvencv-python |
2.实现代码:
视频转为图片:
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import cv2 cap = cv2.VideoCapture( 'E:/video/video-02.mp4' ) # 获取一个视频打开cap isOpened = cap.isOpened # 判断是否打开 print (isOpened) fps = cap.get(cv2.CAP_PROP_FPS) print (fps) # 获取宽度 width = int (cap.get(cv2.CAP_PROP_FRAME_WIDTH)) # 获取高度 height = int (cap.get(cv2.CAP_PROP_FRAME_HEIGHT)) i = 0 while (isOpened): # 保存前十帧 if i = = 10 : break else : i + = 1 (flag,frame) = cap.read() # 读取每一帧,一张图像flag 表明是否读取成果 frame内容 fileName = 'E:/video/image' + str (i) + '.jpg' print (fileName) # flag表示是否成功读图 if flag = = True : # 控制质量 cv2.imwrite(fileName,frame,[cv2.IMWRITE_JPEG_QUALITY, 100 ]) print ( 'end!' ) |
图片保存为视频:
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import os import cv2 import numpy as np path = 'E:/video/img' filelist = os.listdir(path) #fourcc = cv2.cv.CV_FOURCC('M','J','P','G') #opencv版本是2 fourcc = cv2.VideoWriter_fourcc( * 'XVID' ) #opencv版本是3 fps = 5 # 视频每秒24帧 size = ( 1920 , 1080 ) # 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( 'E:/video/2.avi' , fourcc, fps, size) # 视频保存在当前目录下 for item in filelist: if item.endswith( '.jpg' ): # 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) video.write(img) video.release() cv2.destroyAllWindows() |
以上就是Python+Opencv实现把图片、视频互转的示例的详细内容,更多关于python 图片、视频互转的资料请关注服务器之家其它相关文章!
原文链接:https://www.cnblogs.com/zlc364624/p/12715661.html