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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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MATLABfirdesign
matlab 设计 FIR 低通滤波器的几种方法(matlab design FIR low-pass filter of several methods)
- 2008-05-30 10:13:19下载
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64QAM_peng
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filtering-
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)
- 2011-05-13 17:16:12下载
- 积分:1
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svd01
实现信号的SVD 分解,对信号中的奇异性进行监测,对突变信号点也可以很好监测(to complete the SVD for signals,Singularity of signal monitoring, signal monitoring point can be very good for mutations)
- 2013-04-25 15:29:30下载
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shengzijginti
近年来,声子晶体深受欢迎 关键词:MATLAB 声子晶体 能带( In recent years, the popularity of phonon crystals Keywords: MATLAB phonon crystal band)
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CODE
morphological operations on images
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K-Kmedoids
k -medoids algorithm is a clustering algorithm related to the k -means algorithm and the medoidshift algorithm.
- 2015-07-03 05:14:14下载
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leach_matlab
说明: leach协议的matlab仿真(leach agreement matlab simulation)
- 2008-11-26 10:53:26下载
- 积分:1
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_MA_one
数学建模MATLAB必备程序源代码,自己收集的,自己认为非常有用,希望能给大家带来帮助。(Mathematical modeling MATLAB essential program source code, own collection, considered very useful, I hope we can bring help.)
- 2012-11-14 23:45:26下载
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