module Jpeg: sig
.. end
Jpeg Marker such as EXIF
module Marker: sig
.. end
val load : string -> Images.load_option list -> Images.t
Loads a jpeg image.
val load_thumbnail : string -> Images.load_option list -> Geometry.spec -> int * int * Images.t
val save : string -> Images.save_option list -> Images.t -> unit
Save a full-color image in jpeg format file.
Raises Invalid_argument
if the image is not a full-color image.
val save_with_markers : string -> Images.save_option list -> Images.t -> Marker.t list -> unit
Same as save
but it also writes markers
val save_as_cmyk : string ->
Images.save_option list ->
(Images.rgb -> int * int * int * int) -> Images.t -> unit
This converts RGB images to CMYK, but the color conversion is not
something fancy.
val save_cmyk_sample : string -> Images.save_option list -> unit
Create CMYK jpeg image sample. Just for developpers.
type
in_handle
Scanline based I/O functions
val open_in : string -> int * int * in_handle * Marker.t list
val open_in_thumbnail : string ->
Geometry.spec ->
int * int * (int * int * in_handle) * Marker.t list
val read_scanline : in_handle -> bytes -> int -> unit
val close_in : in_handle -> unit
type
out_handle
val open_out : string -> int -> int -> int -> out_handle
val write_marker : out_handle -> Marker.t -> unit
val write_scanline : out_handle -> bytes -> unit
val close_out : out_handle -> unit
: string -> Images.header
Checks the file header
val read_markers : string -> Marker.t list
Open the file, read the markers, then close it immediately.