Module Pdfimage

type pixel_layout =
  1. | BPP1
  2. | BPP8
  3. | BPP24
  4. | BPP48
type t =
  1. | JPEG of Pdfio.bytes * float list option
  2. | JPEG2000 of Pdfio.bytes * float list option
  3. | JBIG2 of Pdfio.bytes * float list option
  4. | Raw of int * int * pixel_layout * Pdfio.bytes
val string_of_layout : pixel_layout -> string
val string_of_image : t -> string
val print_floats : float array -> unit
val invert_bits : Pdfio.bytes -> unit
val decode : float array -> int -> Pdfio.bytes -> unit
val decode_defaults : Pdf.t -> Pdf.pdfobject -> Pdf.pdfobject option -> Pdf.pdfobject -> Pdf.pdfobject option
val decode_to_image : Pdf.t -> Pdf.pdfobject -> unit
val rgb_of_cmyk : int -> int -> int -> int -> int * int * int
val read_cmyk_8bpp_as_rgb24 : int -> int -> Pdfio.bytes -> Pdfio.bytes
val read_gray_8bpp_as_rgb24 : int -> int -> Pdfio.bytes -> Pdfio.bytes
val read_1bpp_as_rgb24 : int -> int -> Pdfio.bytes -> Pdfio.bytes
val read_4bpp_gray_as_rgb24 : int -> int -> Pdfio.bytes -> Pdfio.bytes
val read_8bpp_indexed_as_rgb24 : (int, int list) Hashtbl.t -> int -> int -> Pdfio.bytes -> Pdfio.bytes
val clamp10 : float -> float
val xyz_of_lab : float -> float -> float -> float -> float -> float -> float * float * float
val rgb_of_xyz : float -> float -> float -> float * float * float
val convert_lab_to_rgb : int -> int -> (float * float * float) -> 'a -> 'b -> Pdfio.bytes -> unit
val read_8bpp_lab_indexed_as_rgb24 : (int, int list) Hashtbl.t -> int -> int -> (float * float * float) -> 'a -> 'b -> Pdfio.bytes -> Pdfio.bytes
val read_8bpp_cmyk_indexed_as_rgb24 : (int, int list) Hashtbl.t -> int -> int -> Pdfio.bytes -> Pdfio.bytes
val read_4bpp_indexed_as_rgb24 : (int, int list) Hashtbl.t -> int -> int -> Pdfio.bytes -> Pdfio.bytes
val read_4bpp_cmyk_indexed_as_rgb24 : (int, int list) Hashtbl.t -> int -> int -> Pdfio.bytes -> Pdfio.bytes
val read_separation_cmyk_as_rgb24 : Pdffun.t -> int -> int -> Pdfio.bytes -> Pdfio.bytes
val read_raw_image : int -> Pdfspace.t -> Pdf.pdfobject option -> 'a -> 'b -> int -> int -> 'c -> Pdfio.bytes -> t
val get_raw_image : Pdf.t -> Pdf.pdfobject -> int -> int -> Pdf.pdfobject -> Pdfio.bytes -> t
val print_image : Pdf.t -> Pdf.pdfobject -> Pdf.pdfobject -> unit
val get_image_24bpp : Pdf.t -> Pdf.pdfobject -> Pdf.pdfobject -> t
val get_image : Pdf.t -> Pdf.pdfobject -> Pdf.pdfobject -> t
val get_image_raw_24bpp : Pdf.t -> Pdf.pdfobject -> Pdf.pdfobject -> t
val get_image_raw : Pdf.t -> Pdf.pdfobject -> Pdf.pdfobject -> t
val get_image_unprocessed_pixel : Pdf.t -> Pdf.pdfobject -> Pdf.pdfobject -> (int -> int array) option

Return a function which, when given an x and y coordinate, returns the pixel byte values prior to any decoding, i.e in the raw input image data before /Decode, /Index lookups and so on. Returns array of components as bytes. This function is needed because color key masking is defined in terms of the pixel values of undecoded images.