crop

       try:
            import Image
            size = 96, 96
            thumb_96x96 = StringIO()
            im = Image.open(src_file)
            if im.mode != "RGB":
                im = im.convert("RGB")
            width, height = im.size
            if width > height:
                delta = width - height
                left = int(delta / 2)
                upper = 0
                right = height + left
                lower = height
            else:
                delta = height - width
                left = 0
                upper = int(delta / 2)
                right = width
                lower = width + upper

            im = im.crop((left, upper, right, lower))
            im.thumbnail(size, Image.ANTIALIAS)
            im.save(thumb_96x96, "JPEG")