信息技术 JPEG 2000 图像编码系统 第 17 部分：不连续媒体编码的扩展

[中文适用范围]： 本建议书 | 国际标准定义了 QuadBPT 和 TriBPT 图像组件（统称为“断点组件”），并指定了从码流中恢复断点组件样本值的解码和重建程序。本建议书 | 国际标准还指定了“断点相关”空间小波变换，可用于代替建议书 ITU-T T.800 | ISO/IEC 15444-1 中为选定图像组件或图块组件指定的变换。建议书 ITU-T T.800 | ISO/IEC 15444-1 的码流语法扩展被指定为能够识别断点组件、可以使用断点相关空间小波变换的组件以及断点组件与此类断点相关小波变换的关联。 [外文原描述]： This document defines QuadBPT and TriBPT image components, collectively known as "breakpoint components", and specifies decoding and reconstruction procedures for recovering breakpoint component sample values from the codestream. This Recommendation | International Standard also specifies "breakpoint-dependent" spatial wavelet transforms that can be used in place of the transforms specified in Recommendation ITU-T T.800 | ISO/IEC 15444-1 for selected image components or tile-components. Extensions to the codestream syntax of Rec. ITU‑T T.800 | ISO/IEC 15444-1 are specified to enable the identification of breakpoint components, of components that can use a breakpoint-dependent spatial wavelet transform, and the association of breakpoint components with such breakpoint-dependent wavelet transforms.