python-视频分帧&多帧合成视频实例

Python  /  管理员 发布于 8年前   494

我就废话不多说了，直接上代码吧！

1.视频分帧：

import cv2vidcap = cv2.VideoCapture('005.avi')success,image = vidcap.read()count = 0success = Truewhile success: success,image = vidcap.read() cv2.imwrite("frame%d.jpg" % count, image)   # save frame as JPEG file if cv2.waitKey(10) == 27:  break count += 1

2.多帧合成视频：

import cv2 def images_to_video():  fps = 30 # 帧率  num_frames = 500  img_array = []  img_width = 720  img_height = 1280  for i in range(num_frames+1):    filename = "./frames/"+str(i)+".png"    img = cv2.imread(filename)     if img is None:      print(filename + " is non-existent!")      continue    img_array.append(img)   out = cv2.VideoWriter('demo.avi', cv2.VideoWriter_fourcc(*'DIVX'), fps,(img_width,img_height))   for i in range(len(img_array)):    out.write(img_array[i])  out.release()  def main():    images_to_video()  if __name__ == "__main__":  main()

以上这篇python-视频分帧&多帧合成视频实例就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持。