标准摘要
[中文适用范围]: 此建议|国际标准定义了一组无损(位保留)和有损压缩方法,用于编码连续色调、双层、灰度、彩色数字静态图像或多分量图像。 此建议|国际标准: – 规定了将压缩图像数据转换为重建图像数据的扩展解码过程; – 指定包含用于解释压缩图像数据的信息的扩展码流语法; – 指定扩展文件格式; – 指定存储图像元数据的容器; – 定义一组标准的图像元数据; – 提供有关将源图像数据转换为压缩图像数据的扩展编码过程的指导; – 提供有关如何在实践中实施这些流程的指导。 [外文原描述]: ISO/IEC 15444-2:2004 defines a set of lossless (bit-preserving) and lossy compression methods for coding continuous-tone, bi-level, grey-scale, colour digital still images, or multi-component images. ISO/IEC 15444-2:2004: specifies extended decoding processes for converting compressed image data to reconstructed image data;specifies an extended codestream syntax containing information for interpreting the compressed image data;specifies an extended file format;specifies a container to store image metadata;defines a standard set of image metadata;provides guidance on extended encoding processes for converting source image data to compressed image data;provides guidance on how to implement these processes in practice.
英文名称Information technology - JPEG 2000 image coding system: Extensions - Part 2: