imagelib 20200929 · OCaml Package

module Pixmap : sig ... end

type pixmap =

| Grey of Pixmap.t
| GreyA of Pixmap.t * Pixmap.t
| RGB of Pixmap.t * Pixmap.t * Pixmap.t
| RGBA of Pixmap.t * Pixmap.t * Pixmap.t * Pixmap.t

type image = {

width : int;
height : int;
max_val : int;
pixels : pixmap;

}

val create_rgb : ?alpha:bool -> ?max_val:int -> int -> int -> image

create_rgb ?alpha ?max_val width height is an RGB image of dimensions width * height. Raises Invalid_argument if width or height are negative, or if max_val is not in the range [1;65535].

val create_grey : ?alpha:bool -> ?max_val:int -> int -> int -> image

create_rgb ?alpha ?max_val width height is a greyscale image of dimensions width * height. Raises Invalid_argument if width or height are negative, or if max_val is not in the range [1;65535].

val read_rgba : image -> int -> int -> (int -> int -> int -> int -> 'a) -> 'a

val read_rgb : image -> int -> int -> (int -> int -> int -> 'a) -> 'a

val read_greya : image -> int -> int -> (int -> int -> 'a) -> 'a

val read_grey : image -> int -> int -> (int -> 'a) -> 'a

val write_rgba : image -> int -> int -> int -> int -> int -> int -> unit

val write_rgb : image -> int -> int -> int -> int -> int -> unit

val write_greya : image -> int -> int -> int -> int -> unit

val write_grey : image -> int -> int -> int -> unit

val fill_rgb : ?alpha:int -> image -> int -> int -> int -> unit

fill_rgb ?alpha image r g b overwrites image with r,g,b colors. TODO

val fill_alpha : image -> int -> unit

val copy : image -> image

copy image is a copy of image backed my a new memory allocation, so that the mutations of either copy are independent of each other

val compare_image : image -> image -> int

exception Corrupted_image of string

module type ReadImage = sig ... end

module type ReadImageStreaming = sig ... end

module type WriteImage = sig ... end

exception Not_yet_implemented of string

module Resize : sig ... end

package imagelib