ISO/IEC 15444-5:2003 信息技术-JPEG2000图象编码系统-参考软件

标准编号：ISO/IEC 15444-5:2003

中文名称：信息技术-JPEG2000图象编码系统-参考软件

英文名称：Information technology — JPEG 2000 image coding system: Reference software — Part 5:

发布日期：2003-11

标准范围

ISO/IEC 15444-5:20 03提供了ISO/IEC 15444-1的两个独立创建的软件参考实现，以帮助ISO/IEC 15444-1的实施者测试和理解其内容。ISO/IEC 15444-1定义了一组用于编码连续色调、双层、灰度或彩色数字静止图像的无损和有损压缩方法。参考软件仅供参考。ISO/IEC 15444-5:20 03没有定义JPEG 2000图像编码系统的任何附加部分。参考软件的每个版本都包含源代码，可以对其进行编译以提供以下功能:从所选择的广泛可用的图像格式转码为JPEG 2000码流；从选定的、广泛可用的图像格式转码为JP2文件格式；选择广泛的JPEG 2000编码选项（如每个参考软件中所述）；从JPEG 2000码流解码成一系列选定的广泛可用的图像格式；对JP2文件进行部分处理，以提取JPEG 2000码流，用于解码成一系列选定的广泛可用的图像格式（注意，参考软件没有实现一致的JP2文件读取器）；一些帮助评估和测试的附加工具。

ISO/IEC 15444-5:2003 provides two independently created software reference implementations of ISO/IEC 15444-1, in order to assist implementers of ISO/IEC 15444-1 in testing and understanding its content. ISO/IEC 15444-1 defines a set of lossless and lossy compression methods for coding continuous-tone, bi-level, greyscale or colour digital still images.The reference software is informative only. ISO/IEC 15444-5:2003 does not define any additional part of the JPEG 2000 image coding system.Each version of the reference software contains source code, which may be compiled to provide the following functionality:

• transcoding from selected, widely available image formats into a JPEG 2000 codestream;
• transcoding from selected, widely available image formats into the JP2 file format;
• selection of a wide range of JPEG 2000 encoding options (as documented in each reference software);
• decoding from a JPEG 2000 codestream to a range of selected widely available image formats;
• partial processing of a JP2 file to extract a JPEG 2000 codestream for decoding to a range of selected widely available image formats (Note that the reference software does not implement a conforming JP2 file reader.);
• some additional tools to help with evaluation and testing.

标准预览图