example762

1．产生一个连续信号，包含低频，中频，高频分量，对其进行采样，进行频谱分析，分别设计三种高通， 低通，带通滤波器对信号进行滤波处理，观察滤波后信号的频谱。 2.采集一段含有噪音的语音信号（可以录制含有噪音的信号，或者录制语音后再加进噪音信号），对其进行 采样和频谱分析，根据分析结果设计出一合适的滤波器滤除噪音信号(1. Produce a continuous signal, including low-frequency, medium frequency, high-frequency components, its sampling, spectral analysis, are designed for three high-pass, low pass, band-pass filter the signal filtering treatment to observe the signal spectrum after filtering. 2. Acquisition section of the speech signal contains noise (can record a signal containing noise, or voice recording, additional noise after the signal), its sampling and spectral analysis, based on an analysis of the results to design a suitable filter to filter out one noise signal)

主元分析法(PCA)在图像颜色特征提取中的应用(Principal component analysis (PCA) in image color feature extraction applications)

how implement a codec using matlab Simulation

说明：  利用机器学习的支持向量机算法对多类样本进行类别划分，达到了较好的分类效果。(Using the support vector machine algorithm of machine learning to classify the multi class samples, it achieves a better classification effect.)

说明：  matlab简单例程，可以熟悉矩阵的建立、提取、逻辑循环等功能(matlab simple routine, familiar with the matrix can be set up, extraction, logic cycle and other functions)

边缘提取技术边缘是图像对视觉的最主要特征，因此在计算机视觉技术中提出了多种检测边缘的算法。由于各种原因，图像常常受到随机噪声的干扰，经典的边缘检测的结果常常是将噪声误检为边缘点，而真正的边缘由于噪声干扰却可能被漏检。因而对于被噪声污染的图像来说，一种好的边缘检测方法应具有良好的噪声抑制能力，同时又有完备的边缘保持特性。(After analysing the soft threshold funetion,the smoothness threshold function is proposed by modifying the soft threshold function.because this function keeps smooth in the entire value range,some important details in the process of image denoising can be held. Firstly we detect the edge of the noising image. )

说明：  使用matlab语言编写的由彩色图像到轮廓提取(Matlab language used by the color image to the contour extraction)

MATLAB code to crop object from image on the basis of color boundary.

MATLAB实例详解，通过对matlab语言如何编程进行实例解析，是学习matlab的很好教程(Detailed MATLAB examples, through the matlab programming language for examples of how to resolve, are studying a very good tutorial matlab)

使用PLL design assistant程序进行PLL设计(PLL design using the PLL design assistant program)