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DCT_IDCT
to understand the Algorithm go to matlab help in page dct2 and idct2 to get the mathematical expression
for M = N = 8, we can calculate the most of hard values and save it as LUTs to speed up the execution
now compare our special 8X8 functions with the internal general functions
use this code:
A = int32(100*rand(8,8))
tic for i = 1 : 1000 IDCT_8X8(DCT_8X8(A)) end toc
tic for i = 1 : 1000 idct2(dct2(A)) end toc
i had built the general functions too, but with low speed (to understand the Algorithm go to matlab help in page dct2 and idct2 to get the mathematical expressionfor M = N = 8, we can calculate the most of hard values and save it as LUTs to speed up the executionnow compare our special 8X8 functions with the internal general functionsuse this code: A = int32 (100* rand (8,8)) tic for i = 1: 1000 IDCT_8X8 (DCT_8X8 (A)) end toc tic for i = 1: 1000 idct2 (dct2 (A)) end toc i had built the general functions too, but with low speed)
- 2007-12-05 18:28:42下载
- 积分:1
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ROC
说明: ROC曲线绘制程序!matlab版!搜索,无重复。(ROC curve drawing program! matlab version! English, no repeat.)
- 2008-09-03 12:07:55下载
- 积分:1
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GUI-CODES
graphical user interface matlab code
- 2013-10-11 16:46:27下载
- 积分:1
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universal-characteristic-curve
发动机万有特性曲线的画法以及代码MATLAB(Engine universal characteristic curve drawing method and MATLAB code)
- 2013-10-22 16:15:49下载
- 积分:1
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Motion-H1
用matlab做的一个比较短小的动画,需要更复杂的话可以逐步扩展(A simple animation that made by matlab , If you need to be more complex ,pls write other programs to extend it.)
- 2010-06-17 22:46:07下载
- 积分:1
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impulse
This code is about designing of synthetics seismic data.
- 2009-11-13 03:36:51下载
- 积分:1
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wok
说明: 基本的一百个matlab源程序分享,欢迎下载,一一分享,(language of matlab important)
- 2010-03-18 19:16:29下载
- 积分:1
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MATLABxiaobofenxi
里面是小波分析的实现方法,还有数学介绍。数字信号处理上机实验答案(第三版).docx的电子版(There is a wavelet analysis method, as well as mathematical description. Digital signal processing on the experimental answer (third edition). Electronic version of docx)
- 2013-12-16 23:28:08下载
- 积分:1
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boundrycomparison
这个是对16QAM各种界的一个整理,给出了仿真程序,对于初学者来说具有重要的意义。(This is a finishing 16QAM various circles, the simulation program, for beginners is of great significance.)
- 2013-09-03 15:48:30下载
- 积分:1
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JPEGMatlab
JPEG编码源程序,基于Matlab编码(JPEG encoding source files, based on Matlab coding)
- 2007-01-16 09:52:00下载
- 积分:1