服务器端执行（执行后端图像处理）

Question

我试图用python django模块构建一个web应用程序。任务是如果任何人去链接它将处理图像与阈值并保存到服务器文件夹。

我的代码是（views.py）： -

from django.http import HttpResponse 
import numpy as np 
import cv2 
import Image 
from PIL import Image 
import tesseract 
import ctypes 
import os 
import ImageDraw 



def index(request): 
    im_gray = cv2.imread('Rimage.jpg', cv2.CV_LOAD_IMAGE_GRAYSCALE) 
    (thresh, im_bw) = cv2.threshold(im_gray, 128, 255, cv2.THRESH_BINARY | cv2.THRESH_OTSU) 
    thresh = 100 
    im_bw = cv2.threshold(im_gray, thresh, 255, cv2.THRESH_BINARY)[1] 
    cv2.imwrite('bw_image.png', im_bw) 

    return HttpResponse("Hello, world. You're at the polls index.") 

这个代码是不能工作的错误： -

Traceback: 
File "/usr/local/lib/python2.7/dist-packages/django/core/handlers/base.py" in get_response 
    98.     resolver_match = resolver.resolve(request.path_info) 
File "/usr/local/lib/python2.7/dist-packages/django/core/urlresolvers.py" in resolve 
    343.    for pattern in self.url_patterns: 
File "/usr/local/lib/python2.7/dist-packages/django/core/urlresolvers.py" in url_patterns 
    372.   patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module) 
File "/usr/local/lib/python2.7/dist-packages/django/core/urlresolvers.py" in urlconf_module 
    366.    self._urlconf_module = import_module(self.urlconf_name) 
File "/usr/lib/python2.7/importlib/__init__.py" in import_module 
    37.  __import__(name) 
File "/home/meraj/Desktop/project/web/mysite/mysite/urls.py" in <module> 
    5.  url(r'^polls/', include('polls.urls')), 
File "/usr/local/lib/python2.7/dist-packages/django/conf/urls/__init__.py" in include 
    28.   urlconf_module = import_module(urlconf_module) 
File "/usr/lib/python2.7/importlib/__init__.py" in import_module 
    37.  __import__(name) 
File "/home/meraj/Desktop/project/web/mysite/polls/urls.py" in <module> 
    3. from polls import views 

Exception Type: IndentationError at /polls/ 
Exception Value: unindent does not match any outer indentation level (views.py, line 20) 

，因为它是本地执行没有什么错我的代码，但当我在Django框架上尝试时，它不工作。我的方向是否正确？我是python web框架的新手，所以我对此没有任何想法。在此先感谢

Answer 1

“本地与django框架”。

这是否意味着您正在一台机器上编辑并将文件复制到另一台机器上？问题是IndentationEror，根据你的输出，所以这可能是一个空格/制表符或换行符问题（一个窗口/一个Linux？）如果前者，尝试用编辑器中的空格替换所有制表符并确保缩进正确后。如果是后者，请在该文件上尝试一个dos2unix。