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图形旋转的C语言源程序-graphics rotating C language source

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IBM AFS 3.6 Release Notes Andrew文件系统(AFS)是一个分布式网络文件系统，其能够使来自任何通过这个国家的AFS机器能够在文件一经在本地存储就能访问。AFS是一个稳定的单元，其每个单元代表文件空间中一个独立的管理部分。单元连接在一起组成了一个在根/afs目录下的一个庞大的UNIX文件系统。 本书是IBM关于其开源产品AFS 3.6 的一个说明文件。-IBM AFS 3.6 Release Notes Andrew File System (AFS) is a distributed network file system, it can come from any country through the AFS machines to a paper by the local store will be able to visit. AFS is a stable unit, each unit space on behalf of an independent management component. Modules linked to a form of the root/afs directory of a large UNIX file system. This book is IBM products on its revenue AFS 3.6 a note.

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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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