envi_zonal_statistics

将保存有灰度图像信息的txt文件转化生成灰度图片。 txt数据只能包含数据，数据用逗号或者空格隔开，所存数据个数应与所生成的图片大小相同。例：要还原的图片大小为640*480，那么txt文件中就应当有307200个数据。(The txt file with information of grayscale image is transformed into gray image. The TXT data can only contain data, separated by commas or spaces, and the number of data stored should be the same as the size of the generated image. Example: the size of the image to restore is 640*480, so there should be 307200 data in the txt file.)

本书主要内容包括：第1章绪论，介绍了信道编码的理论来源和研究背景；第2章线性分组码，阐述了线性分组码的一般原理；第3章概述LDPC码的有关知识；第4章LDPC码校验矩阵构造，详细介绍了LDPC码的构造方式；第5章阐述了 LDPC的各种译码算法，包括本课题组提出的全新译码算法；第6章和第7章分别介绍了LDPC码的两种优化设计和分析方法，即密度进化和EXIT图；第8章介绍了LDPC码在编码调制系统中的应用；第9章介绍了基于LDPC码的链路自适应技术；第10章主要介绍了LDPC码在物理层、应用层联合优化系统中的应用；第11章介绍了LDPC码在图像数字水印系统中的应用。(LDPC code theory and applications)

二维最小均方误差背景预测算法TDLMS，常用于目标检测，经实测，效果较好(Two dimensional minimum mean square error background prediction algorithm TDLMS, commonly used in target detection, measured, the effect is better)

jpeg基本系统编解码实现程序，内附说明文件。(the programs of coding and encoding for then basic system of jpeg.PS:Readme.txt)

说明：  实现无人直升机的控制功能，包括姿态角的仿真。(Realize the control function of unmanned helicopter, including the function of attitude angle.)

说明：  超分辨率图像重建。具有非常好的效果，程序效率较高，有完整的注释和说明文档。(super-resolution image reconstruction. Very good results, the higher the efficiency, integrity of the Notes and documentation.)

EZW图片压缩，利用EZW原理在matlab里面编程实现图片压缩(EZW-compression of picture)

基于MATLAB的图像二维熵的计算，采用了改进的均值滤波器模板，使结果与物理意义更加契合。(This program calculates the 2-dim entropy of images, which is based on MATLAB. It uses a better average filter template, and makes the result in accordance with the identification of entropy.)

机载线阵SAR三维成像，采用后向投影（BP）算法，成像效果比较理想。程序中有各切面的结果图，便于分析成像分辨率。(The airborne SAR three-dimensional imaging uses the back projection (BP) algorithm, and the imaging effect is satisfactory.)

完成水果的尺寸形状表面缺陷的判别，BP神经网络的训练判别表面缺陷(Fruit size, shape and surface defects are identified. BP neural network is used to identify surface defects.)