在Python Pillow上使用JP2 Image

Question

我正在尝试使用python枕头成像库来处理我的jp2图像。

我按照以下步骤操作：

brew安装libjpeg

brew install openjpeg

sudo pip安装枕头

我只是有.jp2文件的问题。 可能是什么问题？

我收到错误的代码：

from PIL import Image
im = Image.open("sample_1.jp2")
im.show()

我尝试显示图像时出现以下错误日志：

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>

  File "/Library/Python/2.7/site-packages/PIL/Image.py", line 1746, in show
    _show(self, title=title, command=command)

  File "/Library/Python/2.7/site-packages/PIL/Image.py", line 2501, in _show
    _showxv(image, **options)

  File "/Library/Python/2.7/site-packages/PIL/Image.py", line 2506, in _showxv
    ImageShow.show(image, title, **options)

  File "/Library/Python/2.7/site-packages/PIL/ImageShow.py", line 51, in show
    if viewer.show(image, title=title, **options):

  File "/Library/Python/2.7/site-packages/PIL/ImageShow.py", line 77, in show
    return self.show_image(image, **options)

  File "/Library/Python/2.7/site-packages/PIL/ImageShow.py", line 96, in show_image
    return self.show_file(self.save_image(image), **options)

  File "/Library/Python/2.7/site-packages/PIL/ImageShow.py", line 92, in save_image

    return image._dump(format=self.get_format(image))

  File "/Library/Python/2.7/site-packages/PIL/Image.py", line 581, in _dump
    self.load()

  File "/Library/Python/2.7/site-packages/PIL/Jpeg2KImagePlugin.py", line 206, in load

    ImageFile.ImageFile.load(self)

  File "/Library/Python/2.7/site-packages/PIL/ImageFile.py", line 203, in load
    d = Image._getdecoder(self.mode, d, a, self.decoderconfig)

  File "/Library/Python/2.7/site-packages/PIL/Image.py", line 420, in _getdecoder
    raise IOError("decoder %s not available" % decoder_name)

IOError: decoder jpeg2k not available

Answer 1

我想我发现了问题......

Mac OSX上的枕头安装说明：

我们为轮式格式的每个受支持的Python版本提供OS X的二进制文件。 这些包括对除OpenJPEG之外的所有可选库的支持。

我想唯一的解决方法是从源码安装Pillow。

作为与该问题没有直接关系的旁注，从源代码安装后，我收到了一个不同的错误：

Nicolas$ python selftest.py
Traceback (most recent call last): 
  File "selftest.py", line 11, in <module>
    from PIL import Image, ImageDraw, ImageFilter, ImageMath
  File "/Users/Nicolas/Downloads/Pillow-3.1.0/PIL/Image.py", line 66, in <module>
    from PIL import _imaging as core
ImportError: cannot import name _imaging

所以我不知道这是否有效。 如果我设法让它工作，将更新。