ImageChops.duplicate - python

Question

我尝试使用PIL模块中的函数ImageChops.dulpicate，但得到了一个我不理解的错误：

这是代码

import PIL
import Image
import ImageChops
import os

PathDemo4a='C:/Documents and Settings/Ariel/My Documents/My Dropbox/lecture/demo4a'
PathDemo4b='C:/Documents and Settings/Ariel/My Documents/My Dropbox/lecture/demo4b'
PathDemo4c='C:/Documents and Settings/Ariel/My Documents/My Dropbox/lecture/demo4c'
PathBlackBoard='C:/Documents and Settings/Ariel/My Documents/My Dropbox/lecture/BlackBoard.bmp'

Slides=os.listdir(PathDemo4a)

for slide in Slides:
    #BB=Image.open(PathBlackBoard)
    BB=ImageChops.duplicate(PathBlackBoard) #BB=BlackBoard

这就是错误；

Traceback (most recent call last):
  File "<pyshell#4>", line 1, in <module>
    ImageChops.duplicate('c:/1.BMP')
  File "C:\Python26\lib\site-packages\PIL\ImageChops.py", line 57, in duplicate
    return image.copy()
AttributeError: 'str' object has no attribute 'copy'

任何帮助都会很有价值

Ariel

Answer 1

您需要将Image对象传递给duplicate函数，而不是string。类似于：

img = Image.open(PathBlackBoard)
BB = ImageChops.duplicate(img) 

Answer 2

我认为你应该传递一个实际的图像对象来复制，而不是一个字符串。因此，对于一个图像，您的代码可能会变成如下所示：

path = '...'
img = Image.open(path)
dup = ImageChops.duplicate(img)