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(** Extract Images *)
type pixel_layout =
| BPP1 (* Black and white *)
| BPP8 (* Greyscale *)
| BPP24 (* Colour *)
| BPP48 (* 48 bit colour *)
type t =
| JPEG of Pdfio.bytes * float list option
| JPEG2000 of Pdfio.bytes * float list option
| JBIG2 of Pdfio.bytes * float list option * int option
| Raw of int * int * pixel_layout * Pdfio.bytes
(** Given a pdf document, resources dictionary and a stream representing an
image, return a triple : width, height, and a stream of (width * height * 3)
bytes RGBRGB etc. In all instances, if JPEG or JPEG2000 or JBIG2 is the compression
method, data is returned still encoded. *)
val get_image_24bpp :
Pdf.t -> Pdf.pdfobject -> Pdf.pdfobject -> t
(** Given a PDF, an image and a /Resources dictionary, return the colourspace
of the image *)
val colspace : Pdf.t -> Pdf.pdfobject -> Pdf.pdfobject -> Pdfspace.t
(** Given a PDF and an image, return any /BPC entry *)
val bpc : Pdf.t -> Pdf.pdfobject -> Pdf.pdfobject option
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