scipy.misc.imshow RuntimeError('无法执行图像视图')

时间:2016-10-25 00:36:35

标签: python image scipy centos7 imshow

我正在测试scipy.misc.imshow并且我得到 RuntimeError:无法执行图像查看器

我正在使用Python3.4并在CentOS 7上运行它。

import scipy.misc
img = scipy.misc.imread('Data/cat.jpg')
assert len(img.shape) == 3
img_resized = scipy.misc.imresize(img, (224, 224))
img_answer = (img_resized/255.0).astype('float32')
scipy.misc.imshow(img_answer)

我收到了一个错误:

sh: see: command not found
Traceback (most recent call last):
  File "/usr/local/pycharm/helpers/pydev/pydev_run_in_console.py", line 71, in <module>
    globals = run_file(file, None, None)
  File "/usr/local/pycharm/helpers/pydev/pydev_run_in_console.py", line 31, in run_file
    pydev_imports.execfile(file, globals, locals)  # execute the script
  File "/usr/local/pycharm/helpers/pydev/_pydev_imps/_pydev_execfile.py", line 18, in execfile
    exec(compile(contents+"\n", file, 'exec'), glob, loc)
  File "/root/PycharmProjects/myVQA/testgood.py", line 6, in <module>
    scipy.misc.imshow(img_answer)
  File "/usr/lib64/python3.4/site-packages/scipy/misc/pilutil.py", line 442, in imshow
    raise RuntimeError('Could not execute image viewer.')
RuntimeError: Could not execute image viewer.

它表示找不到see命令。 CentOS7上安装了see命令在哪里?我该如何解决这个问题?

我尝试将SCIPY_PIL_IMAGE_VIEWER=/bin/eog添加到/etc/profile 但似乎没有任何帮助。

3 个答案:

答案 0 :(得分:8)

您可以使用matplotlib.pyplot作为使用SciPy's imshow方法的替代方法。

import scipy.misc
img = scipy.misc.imread('Data/cat.jpg')
assert len(img.shape) == 3
img_resized = scipy.misc.imresize(img, (224, 224))
img_answer = (img_resized/255.0).astype('float32')

import matplotlib.pyplot as plt
plt.imshow(np.uint8(img_tinted))
plt.show()

Original Image =&gt; Output Image

P.S。如果我们直接将图像绘制为plt.imshow(img_tinted),那么如果呈现给它的数据不是以unit8的形式,它有时会产生奇怪的结果。因此,为了防止这种情况,我们明确地将np.uint8投射到图像,例如plt.imshow(np.uint8(img_tinted))

以下图像显示缺少np.uint8

时的输出

enter image description here

答案 1 :(得分:1)

我解决了我的问题:

1将以下内容添加到/ etc / profile

% sed -E 's_/[^,]*__' <<<'name/name, val1, val2'
name, val1, val2

2次重启

如果您不导出SCIPY_PIL_IMAGE_VIEWER,​​

SCIPY_PIL_IMAGE_VIEWER=/bin/eog
export SCIPY_PIL_IMAGE_VIEWER

无法识别SCIPY_PIL_IMAGE_VIEWER

答案 2 :(得分:0)

以下内容对我也有效(比使用matplotlib更轻更快):

(word1|word2|...|wordn)

然后我可以使用scipy的imshow()。