parameters: (self, index)
return_statement: return self.image_path_from_index(self.image_set_index[index])
docstring: access image at index in image database
          :param index: image index in image database
          :return: image path
docstring_summary: access image at index in image database
          :param index: image index in image database
          :return: image path
docstring_tokens: access image at index in image database : param index : image index in image database : return : image path
function: def image_path_at(self, index):
          """
          access image at index in image database
          :param index: image index in image database
          :return: image path
          """
          return self.image_path_from_index(self.image_set_index[index])
function_tokens: def image_path_at ( self , index ) : return self . image_path_from_index ( self . image_set_index [ index ] )