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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
- 2022-12-20 21:45:04下载
- 积分:1
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a tutorial about bank switching in 8051.
a tutorial about bank switching in 8051.
- 2022-05-08 16:36:36下载
- 积分:1
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标准化机构ISO/IEC JTC 1 / SC 29 / WG 11,也被称为移动的照片…
The standardization body ISO/IEC JTC 1/SC 29/WG 11, also known as the Moving Pictures Experts Group
(MPEG), was established in 1988 to specify digital video and audio coding schemes at low data rates. MPEG
completed its first phase of audio specifications (MPEG-1) in November 1992, ISO/IEC 11172-3. In its second
phase of development, the MPEG Audio subgroup defined a multichannel extension to MPEG-1 audio that is
backwards compatible with existing MPEG-1 systems (MPEG-2 BC) and defined an audio coding standard at
lower sampling frequencies than MPEG-1, ISO/IEC 13818-3.-The standardization body ISO/IEC JTC 1/SC 29/WG 11, also known as the Moving Pictures Experts Group (MPEG), was established in 1988 to specify digital video and audio coding schemes at low data rates. MPEG completed its first phase of audio specifications (MPEG-1) in November 1992, ISO/IEC 11172-3. In its second phase of development, the MPEG Audio subgroup defined a multichannel extension to MPEG-1 audio that
- 2022-02-12 22:13:25下载
- 积分:1
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C语言库函数大全,压缩包内包含C语言中的所有库函数,方便参考!...
C语言库函数大全,压缩包内包含C语言中的所有库函数,方便参考!-This is the collection of C function.It will be convenient to the C programmer.
- 2022-08-09 01:57:46下载
- 积分:1
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vc6lib参考手册,按字母排列,查找方便
vc6lib参考手册,按字母排列,查找方便-vc6lib reference manual, in alphabetical order, to facilitate search
- 2023-06-15 02:40:42下载
- 积分:1
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for beginners can look at the future, they will choose some of the better point...
对于初学者可以看一看,将来还会挑选一些更好一点的内容上传。下载后可以直接看。-for beginners can look at the future, they will choose some of the better point upload. After downloading can look directly.
- 2022-04-17 02:06:20下载
- 积分:1
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Gege study notes that the study is the first step on Struts
-Gege研究指出,这项研究是Struts的第一步
- 2022-08-13 22:25:12下载
- 积分:1
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about threeads in linux
about threeads in linux
- 2022-06-20 06:02:05下载
- 积分:1
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jsp,图书管理系统,用jsp开发的hkjnknkm
jsp,图书管理系统,用jsp开发的hkjnknkm-jsp
- 2023-08-18 09:40:04下载
- 积分:1
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This is inside the development of several c# case of the beginners who are very...
这里面有几个c#的开发案例,对初学CSharp者来说很重要-This is inside the development of several c# case of the beginners who are very important to CSharp
- 2022-03-26 14:05:33下载
- 积分:1