DMI-CODES

The code is used for Homomorphic filtering

支持向量机Matlab工具箱1.0 该工具箱包括了二种分类,二种回归,以及一种一类支持向量机算法 工具箱中所有程序均在Matlab6.5环境中调试通过(Support Vector Machines Matlab Toolbox 1.0 The toolbox includes two kinds of classification, two kinds of regression, as well as a one-class SVM algorithm toolbox all procedures are in Matlab6.5 debugging environment through)

Finite element method using Matlab

研究表明，构成K一L变换矩阵的向量也就是ToePhtz矩阵的特征向量。与此同时，离散 余弦变换矩阵逼近于ToePutz矩阵的特征向量矩阵，所以离散余弦变换矩阵与自然图像的 K一L变换矩阵十分相似。经过离散余弦变换后的变换系数块的协方差矩阵Cy非常接近对角 阵，即除了对角线元素以外，其它很多元素都近似为0，并且在左上角集中了主要能量。这 反映了自然图像大部分区域变化不大，亮度突变只占少数，即图像能量以低频成分为主的特 性。通过变换后的量化，舍弃对视觉效果影响较小的次要信息，可达到进一步的压缩效果。 虽然从去相关性能的意义上讲，DCT是一种次于K一L变换的准最佳变换，但是从算法实现的角度来看，DCT则远远优于K一L变换。首先，当图像的分块大小确定后，DCT的变换矩阵也就随之确定了，不随输入信号的统计特性变化而变化 其次，二维DCT能够分解成两次一维DCT，有利于硬件实现。 (Studies have shown that constitute a K L transformation matrix vector is ToePhtz eigenvector of the matrix. At the same time, discrete The cosine transform matrix approximation in ToePutz matrix eigenvector matrix, so the discrete cosine transform matrix and natural images Is very similar to a K L transformation matrix. After discrete cosine transform, the transform coefficient block of Cy is very close to the diagonal of covariance matrix Matrix, namely except diagonal elements, many other elements are approximate to 0, and focused the main energy in the upper left corner. this Reflects the natural images most area changed little, brightness mutations accounted for only a few, the energy is given priority to with low frequency components of image Sex. Through quantitative after transformation, abandoning smaller effect on the visual performance of secondary information, can achieve further compression effect. Although from related to the performance of the sense, DCT is a kind o)

说明：  the matlab hopfild for tsp question

说明：  经验模态分析（EMD）的MATLAB计算算法，经验模态分析是机械振动分析领域的重要方法(Empirical mode decomposition (EMD) of the MATLAB computing method, empirical mode analysis is an important field of mechanical vibration analysis method)

用matlab实现对语音信号的短时分析，包括清音和浊音的判决，基音周期的估计，实验报告。(Implemented by matlab short time speech signal analysis, including the voiceless and voiced judgments, estimates, lab reports pitch period.)

利用S-function实现函数的编程，利用M文件与SIMULINK相结合验证S-function的正确性。(S-function programming function, using the M-file to verify the correctness of the S-function combined with SIMULINK.)

WAVELET CODING FOR IMAGE

level水平集图像分割的matlab工具包(level level set image segmentation matlab toolkit)