由于某些原因,当我尝试从一个BytesIO流创建一张图片时,无法识别该图片。以下是我的代码:
from PIL import Image, ImageGrab
from io import BytesIO
i = ImageGrab.grab()
i.resize((1280, 720))
output = BytesIO()
i.save(output, format = "JPEG")
output.flush()
print(isinstance(Image.open(output), Image.Image))
并且它抛出的错误堆栈跟踪:
Traceback (most recent call last):
File "C:/Users/Natecat/PycharmProjects/Python/test.py", line 9, in <module>
print(isinstance(Image.open(output), Image.Image))
File "C:\Python27\lib\site-packages\PIL\Image.py", line 2126, in open
% (filename if filename else fp))
IOError: cannot identify image file <_io.BytesIO object at 0x02394DB0>
我正在使用Pillow实现的PIL。