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DCT
实现图像的DCT高通、低通滤波器并与傅里叶变换做比较.有图可见,经DCT低通滤波后,图像变得很模糊。因为DCT是FFT取其实部,能量减少,因此图像变得很模糊,没有经FFT滤波后的效果好。
经DCT高通滤波后的图像:
经DCT高通滤波后,图像的低频部分被滤除掉,图像变黑,只有边缘的痕迹可见。
(The DCT of image high-pass, low pass filter and compared with the Fourier transform.)
- 2011-10-19 19:30:31下载
- 积分:1
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pimc_india
采用Monta Carlo 方法求Pi值方法,并画出圆内随机点(Monta Carlo method, to calculate the value of Pi method, and draw a random point within the circle)
- 2012-07-05 11:21:36下载
- 积分:1
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MATLABlongjietafa
四阶龙格 的matlab程序 matlab(Runge matlab program matlab)
- 2013-03-05 17:50:20下载
- 积分:1
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EMD-toolbox-introduction
Matlab EMD Toolbox 中文使用说明,非常实用(The introduction of Matlab EMD toolbox in Chinese)
- 2013-04-23 11:04:16下载
- 积分:1
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histogramparameters
histogram draw, and parameters of histogram
- 2010-12-09 18:44:06下载
- 积分:1
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selfspline
第一、二种边界条件的三次样条插值程序,应用MATLAB编写,比较实用。(First, two kinds of boundary conditions of the cubic spline interpolation procedure, the application of MATLAB to prepare, more practical.)
- 2008-08-13 01:58:39下载
- 积分:1
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LinearPredictor
一个线性预测的matlab仿真程序,先用模型生成原始信号(平稳随机过程),然后利用最小均方误差准则计算出预测系数,最后利用预测系数对原始信号进行预测(利用原始信号过去n个时刻的值预测当前时刻的值)。(This is a matlab program for linear prediction. First, we use all-pole model to generate a signal(stationary signal), then utilize the Minimum Mean-Square Error to compute the filter cofficient, at last we can use the filter cofficient to predict(use past n signal data to predict current signal data).)
- 2011-06-27 12:24:49下载
- 积分:1
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root-MUSIC-MATLAB
本程序实现root-music算法实现波达方向的估计,能直接运行,有参考价值。。(This program implements root-music DOA estimate algorithm, and can be run directly, there is a reference value. .)
- 2014-12-26 10:49:57下载
- 积分:1
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1822
ebook for learning c++
- 2013-12-24 05:02:21下载
- 积分:1
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Sllyear
线性相关
求逐月异常序列x(n,12)和y(n,12)(n是年)相同月份之间的滞后超前nt年的相关系数rt(-nt:nt,12),其中nt最大的滞后或超前时间(单位:年)。
(Linearly related to demand monthly abnormal sequence x (n, 12) and y (n, 12) (n is the year) ahead of the same month lag between the years of the correlation coefficient nt rt (-nt: nt, 12), in which nt the largest lag or lead time (unit: years).)
- 2010-05-28 10:06:21下载
- 积分:1