登录
首页 » matlab » jpeg_encode+decoderhojoon

jpeg_encode+decoderhojoon

于 2009-09-17 发布 文件大小:3KB
0 216
下载积分: 1 下载次数: 56

代码说明:

  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 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 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. )

下载说明:请别用迅雷下载,失败请重下,重下不扣分!

发表评论

0 个回复

  • MonteCarlo1
    这个程序主要是用来设计实现一个蒙特卡洛的算法 采用matlab设计 可以应用在随机搜索方面(This program is mainly used to design and implement a Monte Carlo algorithm using matlab design can be applied to random search and)
    2021-03-21 21:49:16下载
    积分:1
  • equalization_init
    对均衡进行初始化,并计算固定均衡矩阵等固定参数。 (Initialization and calculation of ixed parameters, e.g. cell positions,equalization matrix etc.)
    2010-09-01 21:19:57下载
    积分:1
  • gonzalezimage
    冈萨雷斯数字图像处理matlab版英文原版书,以及配套的例程。(Digital image processing matlab Gonzalez original English version of the book, and supporting routines.)
    2010-12-17 17:11:30下载
    积分:1
  • huffman
    huffman code for compress
    2015-02-21 11:55:01下载
    积分:1
  • Radial_Basis_Function_Neural_Controller_for_Tanke
    Radial Basis Function Neural Controller for Tanker Ship Heading Regulation
    2010-03-12 05:30:03下载
    积分:1
  • MATLAB_Codes
    说明:  matlab智能算法数值分析数值优化路径规划人工智能神经网络(Matlab intelligent algorithm 30 examples, learn numerical algorithms and artificial intelligence path planning numerical optimization)
    2021-04-13 15:43:04下载
    积分:1
  • MATLAB-GUI-design-learning-Notes
    【MATLAB GUI设计学习手记】源代码 数据 罗飞大哥的作品 本书由浅入深、循序渐进地介绍了matlab gui设计的基础知识,旨在使读者在较短时间内掌握gui设计的精要所在。. 本书首先介绍了gui设计的预备知识,然后详细介绍了gui对象的属性以及两种建立gui的方法:采用函数建立和采用guide建立。在介绍了gui设计基础知识的基础上,深入讲解了activex控件、定时器、串口及mcc编译的相关知识。书中穿插了大量的图表,直观、简要地列出了相关知识点。对于一些重要、难懂的知识点,配以大量的典型例题,方便读者边学边练,加强理解。最后,书中给出了3个典型的综合实例,供读者研究学习。.. 本书适合需要短时间内迅速掌握matlab gui设计的初学者使用,也可作为相关专业师生、相关工程开发人员的参考手册。... ([MATLAB GUI design learning Notes] source code, Luo Fei works of Big Brother The progressive approach of the book, step by step the basics of Matlab gui design, designed to enable the reader to grasp the essence of the gui design where in a relatively short time. . The book begins prior knowledge of the gui design, and then details the gui object properties and methods: two ways to create gui with function to create and adopted to guide the establishment. Describes the design of basic knowledge in gui basis, in-depth to explain the activex control, timer, serial port, and mcc compiled knowledge The book, interspersed with a large number of charts, intuitive, brief list of related knowledge. For some important, difficult to understand the knowledge, together with a large number of typical example, the convenience of the reader to learn while training, to enhance understanding. Finally, the book gives three typical instance, for readers learn. .. Book is suitable for the need for a )
    2012-04-25 11:02:31下载
    积分:1
  • group_lasso
    使用admm算法解决(group_lasso类)问题的matlab程序。(admm method solve (group_lasso)—matlab)
    2014-04-22 10:19:40下载
    积分:1
  • leach
    这个matlab程序,按照节点的能量把选举成为簇头的概率分为了两种,能量高的,概率大,这样就总体的延长了节点群的生存时间(The matlab program, in accordance with the energy of the node to elect the cluster head of the probability is divided into two kinds, high energy, the probability is large, so that the overall extension of the node group s survival time)
    2016-12-04 18:01:35下载
    积分:1
  • eyelid
    Matlab平台下通过检测和拟合上眼睑来识别眼睛状态(Matlab platform by detecting and fitting on the lid to identify the eye condition)
    2010-09-07 10:49:48下载
    积分:1
  • 696518资源总数
  • 106148会员总数
  • 10今日下载