gross-error-2010-10-26

说明：  c常用函数，适合初学者使用，里面有详细的注释(c common function, for beginners, there are detailed notes)

EZW (Embedded Zerotrees of Wavelet Transforms) is a lossy image compression algorithm. At low bit rates (i.e. high compression ratios) most of the coefficients produced by a subband transform (such as the wavelet transform) will be zero, or very close to zero. This occurs because "real world" images tend to contain mostly low frequency information (highly correlated). However where high frequency information does occur (such as edges in the image) this is particularly important in terms of human perception of the image quality, and thus must be represented accurately in any high quality coding scheme.

i need same sours code pls help pudn

matlab图像处理实例详解第三章源码程序，推荐大家一起学习，很好很实用。(Detailed examples matlab image processing Chapter III source program, recommend everyone to learn, very very useful.)

此例可采用BP神经网络算法用于设备故障类型的模式识别程序。 本次为变压器故障（均为低压测故障）类型的识别。(This example can be used BP neural network algorithm for pattern recognition procedures for equipment fault type. The identification of the type of transformer fault (both low pressure fault detection).)

说明：  PCA人脸识别 This package implements basic Principal Component Analysis in Matlab and tests is with grayscale portion of the FERET database. Images are not preprocessed and it is up to the user to preprocess the images as wanted, not changing the filenames(PCA Face Recognition This package implements basic Principal Component Analysis in Matlab andtests is with grayscale portion of the FERET database. Images are notpreprocessed and it is up to the user to preprocess the images as wanted, not changing the filenames)

给出完整的通信系统和多径通信信道，并使用带RLS算法的判决反馈均衡器进行均衡。 内有详细注释。 在DFE(lms算法）的基础上，采用RLS算法 产生 0 1 序列--> QPSK映射 --> 上变频 --> 信道（多径、加噪） --> 下变频 --> LMS算法均衡 --> 解映射、判决 --> 求误码率、星座图(This progam include a complete communication system with a multipath channel, based which decision feedback equalization with RLS algrithem is implemented.)

基于堆结构的贪婪算法，CNM算法，用来复杂网络聚类分析(Greedy algorithm based on heap structure, CNM algorithm, for complex network clustering analysis)

SMOOTH uses a vectorized implementation that may be slow when X and/or FRAME_LENGTH are very large. The number of elements that are used for calculation is length(X)*FRAME_LENGTH. The algorithm vectorizes the operation by creating a matrix of indexes and extracting its diagonals. E.g. for a vector of length 4 and frame_length of 2, the algorithm creates a temporary zero-padded matrix x2 from which it creates a set of indexes:

基于图像内容的模式识别，可以判断图像相应景观大小，高低(Pattern recognition based on image content, can determine the size of the image the corresponding landscape, high and low.)