Crate jbig2enc_rust 

JBIG2 Encoder in Rust

This crate provides functionality to encode binary images into the JBIG2 format. It supports both standalone JBIG2 files and PDF-embedded fragments with proper global dictionary handling.

Re-exports

pub use crate::jbig2arith::Jbig2ArithCoder;

pub use jbig2enc::encode_document;

pub use jbig2structs::Jbig2Config;

Modules

jbig2arith

A pure Rust port of the context-adaptive arithmetic coder from jbig2enc. This module provides low-level bit-level encoding for JBIG2, mirroring the functionality of jbig2arith.cc and jbig2arith.h. It is designed to be integrated into a larger JBIG2 encoding pipeline where binarization and preprocessing are already handled.

jbig2classify

jbig2comparator

jbig2comparator.rs

jbig2context

jbig2cost

jbig2enc

This module contains the main JBIG2 encoder logic.

jbig2halftone

JBIG2 Halftone Region Encoder

jbig2shared

Utility functions for the JBIG2 encoder

jbig2structs

jbig2sym

This module defines the core data structures for JBIG2 symbols and bitmaps, and provides utilities for their manipulation, such as sorting for optimal dictionary encoding.

jbig2unify

Macros

debug

trace

Structs

Jbig2Context

Context for JBIG2 encoding operations

Jbig2EncodeResult

Result of JBIG2 encoding with separate global and page data for PDF embedding

Enums

Jbig2Error

Errors that can occur during JBIG2 encoding

Functions

encode_rois

Encodes a list of text-only binary PBM ROIs into JBIG2 streams.

encode_single_image

Main encoding function that handles both standalone and PDF fragment modes

encode_single_image_lossless

Encodes a single binary image into JBIG2 format using lossless configuration.

get_build_info

Get the build information string

get_version

Get the version string for the crate

Type Aliases

Array2

two-dimensional array