Python Image Library:AttributeError:'NoneType'对象没有属性XXX

Question

我用PIL打开了一张照片,但是当我试图split()分割频道时,我得到了以下错误: AttributeError: 'NoneType' object has no attribute 'bands'

import Image
img = Image.open('IMG_0007.jpg')

img.split()
---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)

/home/blum/<ipython console> in <module>()

/usr/lib/python2.6/dist-packages/PIL/Image.pyc in split(self)
   1495         "Split image into bands"
   1496 
-> 1497         if self.im.bands == 1:
   1498             ims = [self.copy()]
   1499         else:

AttributeError: 'NoneType' object has no attribute 'bands'

Answer 1

通过谷歌搜索,我在SO上发现了这条评论,声称PIL有时是"懒惰", 并且在打开后"忘记"加载.所以你必须这样做:

import Image
img = Image.open('IMG_0007.jpg')
img.load()
img.split()

请+1也原来的评论!这个人做了真正的工作.