Question

我正在进行机器学习项目，我在使用Python和PIL时遇到了一些麻烦。我从谷歌下载了一些图片，我正在尝试使用PIL调整大小，但我收到了一个错误，我不明白，我不知道该怎么办。

path = '.../Dataset'

for folder_name in breeds:
    for image in os.listdir(path + '/' + folder_name):
        img = Image.open(path + '/' + folder_name + '/' + image)
        new_width  = 200
        new_height = 200
        img = img.resize((new_width, new_height), Image.ANTIALIAS)
        img = img.convert("RGB")
        img.save(path + '/' + folder_name + '/' + image)

我想加载图像然后调整大小，以便我拥有的所有图像都是固定大小的（200,200）。（我使用爬虫下载的所有图像至少为200x200）。我得到了一些奇怪的错误，但谷歌后，我看到我必须将图像转换为RGB。之后我尝试保存它。在像30-40k图像处理后，我收到了这个错误：

.../.local/lib/python3.6/site-packages/PIL/Image.py:916: UserWarning: Palette images with Transparency   expressed in bytes should be converted to RGBA images
  'to RGBA images')
.../.local/lib/python3.6/site-packages/PIL/TiffImagePlugin.py:742: UserWarning: Corrupt EXIF data.  Expecting to read 12 bytes but only got 6. 
  warnings.warn(str(msg))
.../.local/lib/python3.6/site-packages/PIL/TiffImagePlugin.py:742: UserWarning: Corrupt EXIF data.  Expecting to read 12 bytes but only got 10. 
  warnings.warn(str(msg))
---------------------------------------------------------------------------
OSError                                   Traceback (most recent call last)
<ipython-input-3-6016015ffe6f> in <module>()
      6         new_width  = 200
      7         new_height = 200
----> 8         img = img.resize((new_width, new_height), Image.ANTIALIAS)
      9         img = img.convert("RGB")
     10         img.save(path + '/' + folder_name + '/' + image)

~/.local/lib/python3.6/site-packages/PIL/Image.py in resize(self, size, resample, box)
   1743             return self.convert('RGBa').resize(size, resample, box).convert('RGBA')
   1744 
-> 1745         self.load()
   1746 
   1747         return self._new(self.im.resize(size, resample, box))

~/.local/lib/python3.6/site-packages/PIL/ImageFile.py in load(self)
    231                             else:
    232                                 raise IOError("image file is truncated "
--> 233                                               "(%d bytes not processed)" % len(b))
    234 
    235                         b = b + s

OSError: image file is truncated (9 bytes not processed)

任何想法如何处理？谢谢！

Answer 1

你当然可以捕获抛出的OSError，如下所示：

#!/usr/bin/env python3

from PIL import Image
import os

try:
    fn = "earthmap.tiff"
    im = Image.open(fn)
    im = im.resize(200, 200)
    im.save("eartmap-output.tiff")
except OSError:
    print(f"Error processing '{fn}', deleting...")
    os.unlink(fn)

使用PIL错误调整图像大小

1 个答案: