title: Django ImageField Setting a Fixed Width and Height
body: <p>I have the following image field in my models.py (see code below)</p>
  
  <p>I would like to <strong>set</strong> a fixed width and height of the image so its always 100x100px</p>
  
  <p>The code below is what was already in the system, I'm not sure how width and height gets passed or if this code can be used to set the width and height to a fix size.</p>
  
  <pre><code>image = models.ImageField(
          upload_to="profiles",
          height_field="image_height",
          width_field="image_width",
          null=True,
          blank=True,
          editable=True,
          help_text="Profile Picture",
          verbose_name="Profile Picture"
      )
      image_height = models.PositiveIntegerField(null=True, blank=True, editable=False, default="100")
      image_width = models.PositiveIntegerField(null=True, blank=True, editable=False, default="100")
  </code></pre>