title: How to show image in django admin
body: <p>This question was already asked ,but that was not solving my problem.i have searched a lot but i am unable to show the images as thumbnail in admin panel. </p>
  
  <p><strong>MY models.py is</strong></p>
  
  <pre><code>thumb_impression=models.ImageField(blank=True, null=True)
  cust_pic=models.ImageField(blank=True, null=True ,)
  
  def admin_thumbnail(self):
      return mark_safe(u'&lt;img src="%s" /&gt;' % (self.cust_pic))
  
  admin_thumbnail.short_description = 'Thumbnail'
  # admin_thumbnail.allow_tags = True
  
  admin_thumbnail = property(admin_thumbnail)
  </code></pre>
  
  <p><strong>Admin.py is</strong></p>
  
  <p>class AccountAdmin(admin.ModelAdmin):</p>
  
  <pre><code>readonly_fields =  ('balance','terms_and_condition')
  
  fieldsets =  [
      ('Account Details',{
          'fields':['cust_id','cust_first_name','cust_middle_name','cust_last_name','cust_pic']
      }),
      ('Thumbnail',{
          'fields':['cust_pic']
      }),
  ]
  
  list_display = (
      'cust_first_name',
  
      'cust_last_name',
      'admin_thumbnail',
  )
  </code></pre>
  
  <p>admin.site.register(Account,AccountAdmin)</p>
  
  <p><strong>urls.py is</strong></p>
  
  <pre><code>urlpatterns=[
  url(r'^',include(router.urls)),
  
  url(r'^static/(?P&lt;path&gt;.*)$', 'django.views.static.serve',
  {'document_root': settings.MEDIA_ROOT}),
  </code></pre>
  
  <p>]</p>
  
  <p>I tried previous solution but i am unable to find the correct answer.please help me to find out the solution.please give me a proper example so that i can apply it.
  Thanks in advance</p>