首页 jpeg2000的源码kakadu

jpeg2000的源码kakadu

上传者： dpfccnu | 上传时间： 2025-11-06 23:32:41 | 文件大小： 467KB | 文件类型： RAR
JPEG 2000是一种先进的图像编码标准，它在2000年由国际电信联盟（ITU）和联合图像专家组（JPEG）共同推出。相比于传统的JPEG，JPEG 2000在压缩效率、图像质量、传输灵活性等方面有显著优势。其核心在于使用了离散小波变换（DWT）和多分辨率编码，以及更高级的熵编码，如嵌入式块码流（EBCOT）。 Kakadu是JPEG 2000标准的一个知名开源实现，由澳洲国立大学开发。它提供了一整套强大的工具和库，用于处理JPEG 2000编码的图像。Kakadu以其高效和精确而受到赞誉，尤其是在科学、医疗和遥感等领域有着广泛的应用。 从"Kakadu_V2.2.3"这个文件名来看，这应该是Kakadu软件的版本2.2.3。通常，一个软件版本的升级会包含性能优化、新功能的添加、已知问题的修复等。因此，下载并研究Kakadu的源码可以深入理解JPEG 2000的实现细节，对于开发者来说是极具价值的学习资料。 "readme_verysource.com.txt"这个文件可能是Kakadu源码包的说明文件，通常包含了编译指导、使用示例、版权信息等内容。阅读这个文件可以帮助用户更好地理解和使用Kakadu库。 关于JPEG 2000的编码过程，主要包括以下几个步骤： 1. **离散小波变换（DWT）**：图像数据被转化为小波系数，这使得高频和低频信息得以分离，便于压缩。 2. **量化**：对小波系数进行量化，降低数据的动态范围，以进一步压缩。 3. **上下文建模与编码**：通过EBCOT编码，利用相邻系数的统计关联性来提高压缩效率。 4. **码流结构**：生成嵌入式码流，允许逐级解码，实现渐进显示。 5. **区域-of-interest（ROI）编码**：允许优先编码图像的重要部分，适应不同应用场景。 6. **多层编码**：支持不同层次的压缩，用户可以根据带宽或存储需求选择不同的解码级别。 Kakadu源码分析可能涉及以下主题： - **小波变换的实现**：包括不同类型的小波基函数，以及快速小波变换算法。 - **熵编码优化**：EBCOT的具体实现，包括熵编码器和解码器的设计。 - **码流解析和重建**：如何解析JPEG 2000码流，并从中恢复图像数据。 - **多分辨率处理**：如何进行图像的多分辨率表示和操作。 - **错误恢复机制**：在网络不稳定或数据丢失时，如何保证图像的正确解码。 - **内存管理和性能优化**：如何高效地管理大量小波系数，以及如何优化代码以提高处理速度。 学习和研究Kakadu源码不仅有助于提升对JPEG 2000标准的理解，还可以为开发自己的图像处理软件或库提供宝贵的经验。通过阅读源码，开发者可以学习到高级的编码技术，以及如何设计高效的C/C++程序。同时，这也有助于了解开源软件的开发流程和社区协作模式。

文件下载

资源详情

[{"title":"（ 105 个子文件 467KB ） jpeg2000的源码kakadu","children":[{"title":"kdu_show.aps <span style='color:#111;'> 35.45KB </span>","children":null,"spread":false},{"title":"Toolbar.bmp <span style='color:#111;'> 838B </span>","children":null,"spread":false},{"title":"kdu_show.clw <span style='color:#111;'> 3.45KB </span>","children":null,"spread":false},{"title":"params.cpp <span style='color:#111;'> 155.83KB </span>","children":null,"spread":false},{"title":"jp2.cpp <span style='color:#111;'> 102.80KB </span>","children":null,"spread":false},{"title":"codestream.cpp <span style='color:#111;'> 86.66KB </span>","children":null,"spread":false},{"title":"compressed.cpp <span style='color:#111;'> 84.24KB </span>","children":null,"spread":false},{"title":"kdu_show.cpp <span style='color:#111;'> 81.26KB </span>","children":null,"spread":false},{"title":"block_encoder.cpp <span style='color:#111;'> 62.20KB </span>","children":null,"spread":false},{"title":"kdu_compress.cpp <span style='color:#111;'> 59.00KB </span>","children":null,"spread":false},{"title":"image_in.cpp <span style='color:#111;'> 44.71KB </span>","children":null,"spread":false},{"title":"kdu_expand.cpp <span style='color:#111;'> 43.40KB </span>","children":null,"spread":false},{"title":"block_decoder.cpp <span style='color:#111;'> 41.81KB </span>","children":null,"spread":false},{"title":"image_out.cpp <span style='color:#111;'> 37.69KB </span>","children":null,"spread":false},{"title":"blocks.cpp <span style='color:#111;'> 36.02KB </span>","children":null,"spread":false},{"title":"kdu_transcode.cpp <span style='color:#111;'> 34.19KB </span>","children":null,"spread":false},{"title":"region_decompressor.cpp <span style='color:#111;'> 33.16KB </span>","children":null,"spread":false},{"title":"synthesis.cpp <span style='color:#111;'> 24.30KB </span>","children":null,"spread":false},{"title":"analysis.cpp <span style='color:#111;'> 22.49KB </span>","children":null,"spread":false},{"title":"encoder.cpp <span style='color:#111;'> 21.93KB </span>","children":null,"spread":false},{"title":"simple_example_d.cpp <span style='color:#111;'> 18.72KB </span>","children":null,"spread":false},{"title":"decoder.cpp <span style='color:#111;'> 18.07KB </span>","children":null,"spread":false},{"title":"roi_sources.cpp <span style='color:#111;'> 14.88KB </span>","children":null,"spread":false},{"title":"mq_encoder.cpp <span style='color:#111;'> 14.83KB </span>","children":null,"spread":false},{"title":"simple_example_c.cpp <span style='color:#111;'> 14.30KB </span>","children":null,"spread":false},{"title":"kernels.cpp <span style='color:#111;'> 13.45KB </span>","children":null,"spread":false},{"title":"roi.cpp <span style='color:#111;'> 13.20KB </span>","children":null,"spread":false},{"title":"ChildView.cpp <span style='color:#111;'> 11.15KB </span>","children":null,"spread":false},{"title":"colour.cpp <span style='color:#111;'> 10.38KB </span>","children":null,"spread":false},{"title":"mq_decoder.cpp <span style='color:#111;'> 10.18KB </span>","children":null,"spread":false},{"title":"gcc_dwt_mmx_stub.cpp <span style='color:#111;'> 9.38KB </span>","children":null,"spread":false},{"title":"messaging.cpp <span style='color:#111;'> 9.24KB </span>","children":null,"spread":false},{"title":"args.cpp <span style='color:#111;'> 7.62KB </span>","children":null,"spread":false},{"title":"palette.cpp <span style='color:#111;'> 7.16KB </span>","children":null,"spread":false},{"title":"MainFrm.cpp <span style='color:#111;'> 7.02KB </span>","children":null,"spread":false},{"title":"block_coding_common.cpp <span style='color:#111;'> 6.50KB </span>","children":null,"spread":false},{"title":"gcc_colour_mmx_stub.cpp <span style='color:#111;'> 4.84KB </span>","children":null,"spread":false},{"title":"StdAfx.cpp <span style='color:#111;'> 210B </span>","children":null,"spread":false},{"title":"kdu_compress.dsp <span style='color:#111;'> 9.73KB </span>","children":null,"spread":false},{"title":"kdu_expand.dsp <span style='color:#111;'> 9.44KB </span>","children":null,"spread":false},{"title":"kdu_transcode.dsp <span style='color:#111;'> 9.07KB </span>","children":null,"spread":false},{"title":"coresys.dsp <span style='color:#111;'> 7.50KB </span>","children":null,"spread":false},{"title":"kdu_compress.dsp <span style='color:#111;'> 6.03KB </span>","children":null,"spread":false},{"title":"kdu_show.dsp <span style='color:#111;'> 5.93KB </span>","children":null,"spread":false},{"title":"kdu_expand.dsp <span style='color:#111;'> 5.62KB </span>","children":null,"spread":false},{"title":"kdu_transcode.dsp <span style='color:#111;'> 5.42KB </span>","children":null,"spread":false},{"title":"simple_example_d.dsp <span style='color:#111;'> 4.91KB </span>","children":null,"spread":false},{"title":"simple_example_c.dsp <span style='color:#111;'> 4.91KB </span>","children":null,"spread":false},{"title":"apps.dsw <span style='color:#111;'> 1.59KB </span>","children":null,"spread":false},{"title":"nolib.dsw <span style='color:#111;'> 981B </span>","children":null,"spread":false},{"title":"kdu_show.dsw <span style='color:#111;'> 539B </span>","children":null,"spread":false},{"title":"coresys.dsw <span style='color:#111;'> 537B </span>","children":null,"spread":false},{"title":"kdu_compressed.h <span style='color:#111;'> 91.30KB </span>","children":null,"spread":false},{"title":"compressed_local.h <span style='color:#111;'> 86.83KB </span>","children":null,"spread":false},{"title":"msvc_block_decode_asm.h <span style='color:#111;'> 60.36KB </span>","children":null,"spread":false},{"title":"kdu_params.h <span style='color:#111;'> 49.28KB </span>","children":null,"spread":false},{"title":"jp2.h <span style='color:#111;'> 38.93KB </span>","children":null,"spread":false},{"title":"mq_encoder.h <span style='color:#111;'> 29.71KB </span>","children":null,"spread":false},{"title":"jp2_local.h <span style='color:#111;'> 28.59KB </span>","children":null,"spread":false},{"title":"kdu_sample_processing.h <span style='color:#111;'> 26.24KB </span>","children":null,"spread":false},{"title":"mq_decoder.h <span style='color:#111;'> 23.29KB </span>","children":null,"spread":false},{"title":"msvc_dwt_mmx_local.h <span style='color:#111;'> 20.20KB </span>","children":null,"spread":false},{"title":"kdu_image.h <span style='color:#111;'> 18.67KB </span>","children":null,"spread":false},{"title":"region_decompressor.h <span style='color:#111;'> 16.33KB </span>","children":null,"spread":false},{"title":"kdu_show.h <span style='color:#111;'> 14.48KB </span>","children":null,"spread":false},{"title":"image_local.h <span style='color:#111;'> 13.39KB </span>","children":null,"spread":false},{"title":"expand_local.h <span style='color:#111;'> 11.44KB </span>","children":null,"spread":false},{"title":"roi_sources.h <span style='color:#111;'> 10.49KB </span>","children":null,"spread":false},{"title":"kdu_kernels.h <span style='color:#111;'> 9.96KB </span>","children":null,"spread":false},{"title":"synthesis_local.h <span style='color:#111;'> 9.90KB </span>","children":null,"spread":false},{"title":"block_coding_common.h <span style='color:#111;'> 9.71KB </span>","children":null,"spread":false},{"title":"kdu_block_coding.h <span style='color:#111;'> 9.46KB </span>","children":null,"spread":false},{"title":"analysis_local.h <span style='color:#111;'> 9.15KB </span>","children":null,"spread":false},{"title":"compress_local.h <span style='color:#111;'> 9.04KB </span>","children":null,"spread":false},{"title":"roi_local.h <span style='color:#111;'> 8.45KB </span>","children":null,"spread":false},{"title":"kdu_messaging.h <span style='color:#111;'> 8.22KB </span>","children":null,"spread":false},{"title":"msvc_colour_mmx_local.h <span style='color:#111;'> 7.26KB </span>","children":null,"spread":false},{"title":"kdu_roi_processing.h <span style='color:#111;'> 6.72KB </span>","children":null,"spread":false},{"title":"transform_local.h <span style='color:#111;'> 5.43KB </span>","children":null,"spread":false},{"title":"ChildView.h <span style='color:#111;'> 5.34KB </span>","children":null,"spread":false},{"title":"kdu_file_io.h <span style='color:#111;'> 4.74KB </span>","children":null,"spread":false},{"title":"kdu_args.h <span style='color:#111;'> 4.67KB </span>","children":null,"spread":false},{"title":"params_local.h <span style='color:#111;'> 4.49KB </span>","children":null,"spread":false},{"title":"kdu_utils.h <span style='color:#111;'> 4.28KB </span>","children":null,"spread":false},{"title":"MainFrm.h <span style='color:#111;'> 3.97KB </span>","children":null,"spread":false},{"title":"kdu_elementary.h <span style='color:#111;'> 3.96KB </span>","children":null,"spread":false},{"title":"gcc_dwt_mmx_local.h <span style='color:#111;'> 3.23KB </span>","children":null,"spread":false},{"title":"gcc_colour_mmx_local.h <span style='color:#111;'> 2.66KB </span>","children":null,"spread":false},{"title":"resource.h <span style='color:#111;'> 1.77KB </span>","children":null,"spread":false},{"title":"StdAfx.h <span style='color:#111;'> 1.03KB </span>","children":null,"spread":false},{"title":"resource.h <span style='color:#111;'> 408B </span>","children":null,"spread":false},{"title":"kdu_show.ico <span style='color:#111;'> 4.73KB </span>","children":null,"spread":false},{"title":"Makefile <span style='color:#111;'> 2.96KB </span>","children":null,"spread":false},{"title":"Makefile <span style='color:#111;'> 2.08KB </span>","children":null,"spread":false},{"title":"kdu_compress.plg <span style='color:#111;'> 11.55KB </span>","children":null,"spread":false},{"title":"kdu_expand.plg <span style='color:#111;'> 11.48KB </span>","children":null,"spread":false},{"title":"simple_example_c.plg <span style='color:#111;'> 266B </span>","children":null,"spread":false},{"title":"kdu_show.rc <span style='color:#111;'> 14.66KB </span>","children":null,"spread":false},{"title":"coresys.rc <span style='color:#111;'> 2.66KB </span>","children":null,"spread":false},{"title":"kdu_show.rc2 <span style='color:#111;'> 400B </span>","children":null,"spread":false},{"title":"......","children":null,"spread":false},{"title":"<span style='color:steelblue;'>文件过多，未全部展示</span>","children":null,"spread":false}],"spread":true}]

评论信息

其他资源

免责申明

【只为小站】的资源来自网友分享，仅供学习研究，请务必在下载后24小时内给予删除，不得用于其他任何用途，否则后果自负。基于互联网的特殊性，【只为小站】 无法对用户传输的作品、信息、内容的权属或合法性、合规性、真实性、科学性、完整权、有效性等进行实质审查；无论 【只为小站】 经营者是否已进行审查，用户均应自行承担因其传输的作品、信息、内容而可能或已经产生的侵权或权属纠纷等法律责任。
本站所有资源不代表本站的观点或立场，基于网友分享，根据中国法律《信息网络传播权保护条例》第二十二条之规定，若资源存在侵权或相关问题请联系本站客服人员，zhiweidada#qq.com，请把#换成@，本站将给予最大的支持与配合，做到及时反馈和处理。关于更多版权及免责申明参见 版权及免责申明

个人信息

下载历史

相关资源标签

热门下载

最新下载