python-3.x - 值错误 : Could not find a format to read the specified file in mode 'i'

Question

我正在尝试将一个 png 文件读入在 docker 中运行的 python-flask 应用程序中，并收到一个错误消息

ValueError: Could not find a format to read the specified file in mode 'i'

我已经使用 HTML 文件上传了一个文件，现在我正在尝试读取它以进行进一步处理。我看到 scipy.misc.imread 已被弃用，我正在尝试用 imageio.imread 替换它

if request.method=='POST':
    file = request.files['image']
    if not file: 
        return render_template('index.html', label="No file")
    #img = misc.imread(file)
    img = imageio.imread(file)

我收到此错误:

File "./appimclass.py", line 34, in make_prediction

img = imageio.imread(file)

File "/usr/local/lib/python3.6/site-packages/imageio/core/functions.py", line 221, in imread

reader = read(uri, format, "i", **kwargs)

File "/usr/local/lib/python3.6/site-packages/imageio/core/functions.py", line 139, in get_reader

"Could not find a format to read the specified file " "in mode %r" % mode

Answer 1

最近遇到了完全相同的问题，问题是单个损坏的文件。最好是使用类似 PIL 的东西来检查坏文件。

import os
from os import listdir
from PIL import Image

dir_path = "/path/"


for filename in listdir(dir_path):
    if filename.endswith('.jpg'):
        try:
            img = Image.open(base_dir+"\\"+filename) # open the image file
            img.verify() # verify that it is, in fact an image
        except (IOError, SyntaxError) as e:
            print('Bad file:', filename)
            #os.remove(base_dir+"\\"+filename) (Maybe)