蟒蛇OpenCV的：不能將圖像保存到視頻

Question

我有一系列的圖像，我想創建一個基於他們的視頻，我寫了下面的代碼：

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() 

和錯誤是：

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

哪裏出錯了？

Answer 1

你爲每一幀你想寫的新的Videowriter，所以你實際上並沒有添加幀到視頻，但你不斷製作新的videowriters添加一幀。這可能會導致保存錯誤。試試這個：

# 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瞭解更多信息。