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DCT-and-Image-Compression
DCT and Image Compression
In the JPEG image compression algorithm, the input image is divided into
8-by-8 or 16-by-16 blocks, and the two-dimensional DCT is computed for each
block. The DCT coefficients are then quantized, coded, and transmitted. The
JPEG receiver (or JPEG file reader) decodes the quantized DCT coefficients,
computes the inverse two-dimensional DCT of each block, and then puts the
blocks back together into a single image. For typical images, many of the
DCT coefficients have values close to zero these coefficients can be discarded
without seriously affecting the quality of the reconstructed image.
The example code below computes the two-dimensional DCT of 8-by-8 blocks
in the input image, discards (sets to zero) all but 10 of the 64 DCT coefficients
in each block, and then reconstructs the image using the two-dimensional
inverse DCT of each block. The transform matrix computation method is used.
- 2014-01-28 16:55:07下载
- 积分：1
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write-binary-data
write a binary data to the disk
- 2011-11-02 05:04:19下载
- 积分：1
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Capon
传统capon波束形成算法 基本上是最简单的波束形成算法了(Traditional capon beamforming algorithm)
- 2013-11-11 09:13:17下载
- 积分：1
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1
说明： 运用最优控制理论，实现对温度的控制，案例为温度控制系统(The use of optimal control theory, to achieve temperature control, case for the temperature control system)
- 2013-09-29 17:06:03下载
- 积分：1
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sirt
联合迭代重建技术(SIRT)
实现了SIRT算法解决方程组迭代。(Simultaneous iterative reconstruction technique (SIRT) to achieve the SIRT iterative algorithm to solve the equations.)
- 2013-11-19 20:26:24下载
- 积分：1
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MATLABjiaoan
说明： matlab超经典的使用教程，内附详细图解，让你快速掌握常用算法(matlab Tutorial ultra classic, containing detailed illustrations, so you quickly master the commonly used algorithm)
- 2010-04-28 09:03:46下载
- 积分：1
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model1
matlab code for simulation
- 2011-01-25 06:25:16下载
- 积分：1
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ofdm
利用matlab仿真OFDM系统的主要文件(ofdm based on matlab)
- 2010-03-16 12:14:11下载
- 积分：1
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ma.pdf
matlab在大气科学中的应用~这是介绍如何在大气科学研究中使用matlab的入门教程(matlab in atmospheric science applications- this is how to use matlab in atmospheric sciences Tutorial)
- 2013-09-05 10:32:33下载
- 积分：1
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wangluopachong
该matlab程序可以通过网络爬虫抓取网页内容（本程序抓取的是新浪金融的，可以修改成其他的）(The matlab program can crawl web content through web crawlers (the Program crawl Sina finance can be modified into the other))
- 2016-05-23 17:18:37下载
- 积分：1
