KNN手写数字识别

进行图像去噪的小波变换源程序，多重小波分解(Image Denoising the wavelet transform source code, multiple wavelet decomposition)

说明：  特征选择算法，防止分类结果出现过拟合，提前对多维的特征向量进行选择筛选(A feature selection algorithm)

说明：  将基于小波变换的水印嵌入后的宿主图像加噪处理再提取灰度水印。(will be based on the wavelet transform the watermark embedded in the host Image Noise from Gray again watermark.)

matlab实现图像的读取，灰度变换、二值化、边缘检测和hough变换，包含有简单界面。(matlab image read, gray-scale transformation, binarization, edge detection and hough transform, contains a simple interface.)

hog 特征 基于matlab的 RGB提取(realize the hog feature)

考虑了角加速度的飞机isar成像，进行转台模拟。(Consider the angular acceleration of the aircraft, isar imaging turntable simulation.)

基于模拟退火的粒子群算法，主要是将模拟退火得概率问题用于粒子群，使其不易陷入局部最优(Simulated annealing particle swarm algorithm based on simulated annealing was mainly probability for PSO, it is not easy to fall into local optima)

Show how to use unsharp masking algorithm. No image processing toolbox is needed.

数字图像处理方面的常用操作 人脸识别 图像打开和保存 类似photoshop操作 (Digital image processing operations commonly used face recognition and preservation of the image to open a similar operation photoshop)

在使用envi中的band_math时需要将两张图像设置为相同的行和列，改程序解决了该问题(In use of envi band_math need two images set to the same rows and columns, change the program to solve the problem)