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This a JPEG encoding & decoding program of still image. It does not use level sh...
This a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compared for each DCT method. Effect of coarse and fine quantization is also examined. The execution time of 2 DCT methods is also checked. In addition, most energatic DCT coefficients are also applied to examine the effect in MatLab 7.4.0 R2007a. Input is 9 gray scale pictures & output is 9*9=81 pictures to compare. Blocking effect is obvious.
-This is a JPEG encoding & decoding program of still image. It does not use level shifting. Discrete Cosine transform (DCT) is performed both by classical & Chen s Flowgraph methods. Predefined JPEG quantization array & zigzag order are used here. RUN - LEVEL coding is used instead of Huffman coding. Compression ratio is compar
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- 积分：1
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it is about network enginering
it is about network enginering
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关于AVS的一些学习资料，适合初学者的比较好的学习笔记。
关于AVS的一些学习资料，适合初学者的比较好的学习笔记。-Some matierials for beginners.
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pc asm
王爽老师的８０８６汇编书，通俗易懂，通过两个月的学习，进而学习ibm-pc asm-Wang Teacher cool compilation of the 8086 book, easy to understand, through two months of study, and study ibm-pc asm
- 2022-10-03 03:20:05下载
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3D图形编程指南,不错的电子书
3D图形编程指南,不错的电子书-3D graphics programming guide, a good e-books
- 2022-07-04 18:00:08下载
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学习C＋＋的经典教材，程序员必不可少的工具书！
学习C＋＋的经典教材，程序员必不可少的工具书！-Learning C classic materials, programmers indispensable tool!
- 2022-05-20 07:35:59下载
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计算电磁学的数学基础。欢迎新手下载使用，可为计算电磁的学生增进了解...
计算电磁学的数学基础。欢迎新手下载使用，可为计算电磁的学生增进了解-The mathematical basis for computational electromagnetics. Welcome to download novice to use, for the calculation of students to enhance understanding of electromagnetic
- 2022-06-17 06:50:09下载
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第九章代码生成 编译原理 ppt 课件
第九章代码生成 编译原理 ppt 课件-Chapter IX code-generation compiler principles ppt courseware. . . . . . .
- 2022-05-30 17:31:06下载
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MATLAB仿真命令集包括订单模拟，线性和整理等。
matlab仿真命令集
包括仿真命令、线性化和整理命令、构建模型命令等-Matlab simulation command set includes orders simulation, linear and finishing order, constructing model orders
- 2022-04-07 13:05:29下载
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上传一份cpld 开发工具，Quartus II 中文教程.pdf，供学习参考。
上传一份cpld 开发工具，Quartus II 中文教程.pdf，供学习参考。-Upload a CPLD development tool, Quartus II Chinese Course. Pdf, for learning reference.
- 2023-01-11 02:50:02下载
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