ISO/IEC 11544:1993 PDF

Name: ISO/IEC 11544:1993 — Information technology — Coded representation of picture and audio information — Progressive bi-level image compression
SKU: ISO/IEC 11544:1993
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Information technology — Coded representation of picture and audio information — Progressive bi-level image compression

Название (английский):

ISO/IEC 11544:1993

Information technology — Coded representation of picture and audio information — Progressive bi-level image compression

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 77
Дата публикации:: 23 декабря 1993 г.
Издание:: ISO/IEC IS 11544 edition 1 version 1
ICS:: 35.040

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Описание (английский):

Defines a bit-preserving (lossless) compression method for coding image bit-planes and is particularly suitable for bi-level (two-tone, including black-white) images. Specifies requirements and test methods and gives datastream examples.

Abstract

Похожие стандарты

Упомянутые в описании и другие стандарты ISO

Overview

ISO/IEC 11544:1993 - "Information technology - Coded representation of picture and audio information - Progressive bi-level image compression" (also published as CCITT Recommendation T.82) specifies a bit-preserving (lossless) compression method for bi-level (two-tone) images. Developed by the JBIG experts group, the standard defines progressive and sequential coding modes, progressive bi-level image compression workflows, test methods, and datastream examples. It is optimized for coding image bit-planes and supports robust, adaptive encoding across diverse image types (scanned text, halftones, computer-generated images).

Key Topics and Requirements

Lossless, bit-preserving compression: final decoded image is identical to the original.

Progressive encoding modes: progressive, progressive-compatible sequential, and single-progression sequential to support incremental resolution build-up or full-resolution-only encoding.

Resolution reduction and differential layers: hierarchical resolution doublings (D) allowing low-resolution renditions first, then progressive enhancement.

Bit-plane coding: independent coding of bit-planes enables use for greyscale and color (by encoding multiple planes).

Data organization (stripes): images are split into horizontal bands ("stripes") to enable progressive-compatible sequential operation and to reduce buffering requirements.

Adaptive context modeling: deterministic prediction, model templates and adaptive templates for context-based prediction.

Arithmetic coding: entropy coding method specified for effective compression.

Test methods and examples: normative tests and datastream examples to verify conformance.

Annexes: guidance on parameter defaults, filtering, adaptive template changes, probability estimation tables, patent information and bibliography.

Practical Applications and Users

Who uses ISO/IEC 11544:1993:

Document imaging and scanning vendors: implement lossless progressive compression for scanned black‑and‑white documents.

Fax and printing systems: improve compression over MMR (T.4/T.6) for a range of document types.

Document management and archival: store bit-exact images with optional progressive delivery for preview and retrieval.

Networked image browsing and transmission: deliver quick low-resolution previews followed by refinement on demand (beneficial for low- or medium‑rate links).

Software developers and codec implementers: integrate JBIG-based compression in imaging libraries, scanners, printers, and embedded systems. Practical benefits include improved compression ratios on varied content (document text, halftones, CG images), flexible delivery of multiple resolutions, and lossless reconstruction for legal/archival integrity.

Related Standards

CCITT Recommendation T.82 (identical text)

ISO/IEC 10918 (JPEG) - referenced for greyscale/color lossless alternatives

Fax standards: CCITT T.4 (G3) and T.6 (G4 / MMR) - used as baseline comparisons

Keywords: ISO/IEC 11544:1993, progressive bi-level image compression, JBIG, lossless compression, bit-planes, arithmetic coding, document imaging, progressive encoding.

ISO/IEC 11544:1993 PDF

Abstract

Похожие стандарты

Overview

Key Topics and Requirements

Practical Applications and Users

Related Standards

Технические детали

BS ISO/IEC 10918-3:1997

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