蟒蛇OpenCV的：不能将图像保存到视频

Question

我有一系列的图像，我想创建一个基于他们的视频，我写了下面的代码：

import cv2 
img=[] 
for i in range(1,285): 
    img.append(cv2.imread(str(i)+'.png')) 

for j in range(1,285): 
    height,width,layers=img[j].shape 
    video=cv2.VideoWriter('video.avi',-1,1,(width,height)) 
    video.write(img[j]) 

cv2.destroyAllWindows() 
video.release() 

和错误是：

AVF: AVAssetWriter status: Cannot Save 
mMovieWriter.status: 3. Error: Cannot Save 

哪里出错了？

Answer 1

你为每一帧你想写的新的Videowriter，所以你实际上并没有添加帧到视频，但你不断制作新的videowriters添加一帧。这可能会导致保存错误。试试这个：

# Create the videowriter with the right parameters 
height , width , layers = img[0].shape 
video=cv2.VideoWriter('video.avi',-1,1,(width,height)) 

# Loop through all you frames and add each frame to the video 
for j in range(1,285):  
    video.write(img[j]) 

# Cleanup and save video 
cv2.destroyAllWindows() 
video.release() 

查看this OpenCV C++ tutorial了解更多信息。