我有一个numpy.ndarray数组，其中包含float32. 图像尺寸应为 226×226。我试图用来PIL.Image创建图像，但出现错误。我读了PIL.Image.fromarray需要的对象和方式，以及浮法我要打电话fromarray跟'F'我试过。
这就是我试图做的：
from PIL import Image
img = Image.fromarray(slice56, mode='F')
#type(slice56) = <type 'numpy.ndarray'>
#slice56 = array([ 0., 0., 0., ..., 0., 0., 0.], dtype=float32)
我收到这个错误：
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
File "/usr/lib64/python2.6/site-packages/PIL/Image.py", line 1860, in fromarray
return frombuffer(mode, size, obj, "raw", mode, 0, 1)
File "/usr/lib64/python2.6/site-packages/PIL/Image.py", line 1805, in frombuffer
return apply(fromstring, (mode, size, data, decoder_name, args))
File "/usr/lib64/python2.6/site-packages/PIL/Image.py", …