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BlockedBaseDCTDataHiding
Block base DCT data hiding and recovery of secrete image.
- 2013-10-29 18:18:54下载
- 积分:1
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ACO
Ant Colony Algorithm for Non Constraint Optimization Problem
- 2013-12-20 18:54:33下载
- 积分:1
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用Welch法进行功率谱估计
考虑L的三个不同值:L=256(3个数据段),L=128(7个数据段)和L=64(15个数据段)。各自的谱估计图如上图所示。可以明显的看到,加窗明显的减小了频谱上的假谱峰,但也更加进一步平滑了谱峰。所以,对于L=64的情况,在ω=0.8π的谱线可以很确定的辨认,但是那两个靠近的谱峰不容易区分。对于L=128的情况,这种情况提供了在分离和检测间最好的均衡。当然,对于在L=256时的情况,效果是更好的,能够从谱估计图上明显的分辨出三条谱线的存在以及它们幅度关系的强弱。 除了Welch法外,还可以采用对多个周期图求平均的功率谱估计方法的其他方法如Bartlett法等等,在功率谱估计上也能取得较好的结果。(consider three different values : L = 256 (3 data), L = 128 (7 data) and L = 64 (15 data). Their spectral estimation map as shown in Fig. It is clear to see that increase significantly decreasing window of the spectrum of false peaks, but much more to further smooth the peaks. Therefore, L = 64, in the case = 0.8 spectrum can determine the identification, but that the two peaks around is not easy to distinguish. L = 128 for the situation, which provided the separation and detection among the best balanced. Of course, L = 256 in the case, the effect is better, from the spectral estimation map clearly distinguish between the three lines of the existence and their relationship to the rate of strength. In addition to Welch law, but also can be used to map multiple cycle for the average power)
- 2005-07-12 11:18:13下载
- 积分:1
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matlablizi
说明: 这是我在学习matlab时写的一些简单的图形处理的例子,初学者可以看一下!(This is my matlab when learning to write some simple examples of graphics processing, a beginner can look at!)
- 2008-11-17 16:52:17下载
- 积分:1
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clark
clark transformer in matlab
- 2013-07-18 18:23:30下载
- 积分:1
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k_means
一个简单的k-means分类方法,有详细的解释,能直接运行的。(A simple k-means classification method, and a detailed explanation can be run directly.)
- 2010-11-11 21:23:59下载
- 积分:1
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face-detect
基于K-L变换下的人脸检测程序,用matlab编写的(KL transform based face detection under the program, using matlab)
- 2011-11-19 14:49:36下载
- 积分:1
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Polynomial-fitting-code
文件为采用matlab进行多项式拟合的程序及其详细讲解(File using matlab polynomial fitting program and explain in detail)
- 2015-02-02 20:19:12下载
- 积分:1
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d_error
本源码是用于ad hoc中一种改进的预约多址协议的仿真,具有吞吐量高,支持QoS的特点。绝对可以运行。(source for the ad hoc An Improved PRMA agreement simulation, with high throughput, QoS features. Absolutely can run.)
- 2007-07-04 19:17:29下载
- 积分:1
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MATLAB codes used in Mathematical Methods for Diff
说明: 本程序为利用matlab求解微分方程的源程序及相关例子(the procedures for the use of Matlab to solve the differential equation of the source and relevant examples)
- 2005-09-02 22:12:54下载
- 积分:1