sig
type t =
(int, Stdlib.Bigarray.int8_unsigned_elt, Stdlib.Bigarray.c_layout)
Stdlib.Bigarray.Array1.t
val alloc : int -> Image.Data.t
val of_string : string -> Image.Data.t
val to_string : Image.Data.t -> string
val length : Image.Data.t -> int
val blit : Image.Data.t -> int -> Image.Data.t -> int -> int -> unit
val blit_all : Image.Data.t -> Image.Data.t -> unit
val copy : Image.Data.t -> Image.Data.t
val round : int -> int -> int
end