标准摘要
[中文适用范围]： 本推荐|国际标准指定了一个替代块编码算法，该算法可以替换Rec. ITU-T T.800 | ISO/IEC 15444-1中指定的块编码算法。此替代块编码算法以略微降低编码效率为代价，提供了显著的吞吐量提升，并且允许数学上无损地 transcoding 到和从使用Rec. ITU-T T.800 | ISO/IEC 15444-1中指定的块编码算法的码流进行转换，同时保留Rec. ITU-T T.800 | ISO/IEC 15444-1中指定的码流句法规则和功能。 [外文原描述]： This Recommendation | International Standard specifies an alternate block-coding algorithm that can be used in place of the block-coding algorithm specified in Rec. ITU-T T.800 | ISO/IEC 15444-1. This alternate block-coding algorithm offers a significant increase in throughput at the expense of slightly reduced coding efficiency, while a) allowing mathematically lossless transcoding to and from codestreams that use the block-coding algorithm specified in Rec. ITU‑T T.800 | ISO/IEC 15444-1, and b) preserving codestream syntax and features specified in Rec. ITU-T T.800 | ISO/IEC 15444-1. Recommendation ITU-T T.814 (2019) is a common text with ISO/IEC 15444-15:2019, both in their first edition.
英文名称Information technology - JPEG 2000 image coding system - Part 15: High-Throughput JPEG 2000