def __init__(self,<EOL>verbose_name=None,<EOL>name=None,<EOL>width_field=None,<EOL>height_field=None,<EOL>size=None,<EOL>thumbnail_size=None,<EOL>**kwargs):
self.size = self._get_resize_options(size)<EOL>self.thumbnail_size = self._get_resize_options(thumbnail_size)<EOL>super(SizedImageField, self).__init__(verbose_name, name, width_field,<EOL>height_field, **kwargs)<EOL>
Added fields:
    - size: a tuple containing width and height to resize image, and
        an optional boolean setting if is wanted forcing that size
        (None for not resizing).
    - thumbnail_size: a tuple with same values than `size' (None for
        not creating a thumbnail

Example: (640, 480, True) -> Will resize image to a width of 640px and
    a height of 480px. File will be cut if necessary for forcing
    the image to have the desired size