Amendment 2:2025 to CSA ISO/IEC 14496-22:20, Information technology - Information technology — Coding of audio-visual objects — Part 22: Open Font Format Amendment 2: Extending colour font functionality and other updates (Adopted amendment 2:2025 to ISO/IEC 14496-22:2019)
This Recommendation | International Standard1 defines methods for coding bi-level images and sets of images (documents consisting of multiple pages). It is particularly suitable for bi-level images consisting of text and dithered (halftone) data. The methods defined permit lossless (bit-preserving) coding, lossy coding, and progressive coding. In progressive coding, the first image is lossy; subsequent images may be lossy or lossless. This Recommendation | International Standard also defines file formats to enclose the coded bi-level image data.
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