HTML png image display

ToDO

{
    "thumbnail": {
        "filename": "screenshot.png",
        "data-ng-src": "data:image/png;base64,{}".format(
             self.base64encoded_image(self.screnshot_file_path))
     },
     "page": {
         {
             "filename": self.full_page_file_path,
             "data-ng-src": "data:image/png;base64,{}".format(
                 self.base64encoded_image(self.full_page_file_path))
         },
     }
}

<img data-ng-src="data:image/png;base64,{{user.data}}" data-err-src="images/png/avatar.png"/>