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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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ASP.NET_web web applications
ASP.NET_web的web应用-ASP.NET_web web applications
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two on information security cryptography
信息安全2关于密码学-two on information security cryptography
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电子书，介绍电脑技巧的精彩文章100招！
电子书，介绍电脑技巧的精彩文章100招！-e-books, computer skills are excellent article 100 strokes!
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Java Bean courses
JAVA Bean课程-Java Bean courses
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主要是介绍基于IP的虚拟教室交互模式剖析与实现。
主要是介绍基于IP的虚拟教室交互模式剖析与实现。-Mainly to introduce IP-based virtual classroom analysis and realization of interactive mode.
- 2022-07-07 11:29:02下载
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电子图书4部分：数据挖掘、模式识别、神经网络等…
电子书刊----第4部分：数据挖掘、模式识别、神经网络等书籍-Electronic Books Part 4: data mining, pattern recognition, neural network, such as books
- 2022-01-22 05:43:43下载
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This code is c++ Primer plus after
此代码是c++ primer plus例题课后题源代码-This code is c++ Primer plus after-school title Example source code
- 2023-06-12 13:20:03下载
- 积分：1
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norflash烧写 电子开发人员
norflash烧写 电子开发人员-Electronic norflash programmer developer
- 2022-02-05 17:22:04下载
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Instruction Set Manual for the C166 Family of Infineon 16
Instruction Set
Manual
for the C166 Family of
Infineon 16-Bit Single-Chip
Microcontrollers-Instruction Set Manual for the C166 Family of Infineon 16-Bit Single-Chip Microcontrollers
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