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抽取子图像: 通过一个随机混沌标签序列从原图像中抽取 对子图像加密:小波变换 ,在高频部分加密 重构原图，把加密好的子图像重新放回到原图像中 (from sub-images : a random chaotic sequence label from the original image from a tradition image encryption : wavelet transform, the high-frequency part of remodeling the maximum encryption, encrypted good son to re-up images back to the original image)

基于MATLAB平台下，可获取图片任意点的像素坐标。(Based on MATLAB platform, the pixel coordinates of any point in the picture can be obtained.)

说明：  一个比较经典的二维经验模式分解程序代码，适用于图像的特征提取和分解(A more classic two-dimensional empirical mode decomposition procedure code, applied to image feature extraction and decomposition)

关于散斑噪声去除的很多种去噪方法，其中还包含现在很流行的一些去散斑噪声方法。(This package contain several filter algorithms for speckle reduction in ultrasound images or SAR images.)

说明：  非常好用的基于各种常用滤波器的图像平滑算法(Translate From: Chinese To: English EnglishChineseArabicTranslate text or webpage 非常好用的基于各种常用滤波器的图像平滑算法 Translate from: Japanese Allow phonetic typingType text or a website address or translate a document. Cancel Fēicháng hǎo yòng de jīyú gè zhǒng chángyòng lǜbō qì de túxiàng pínghuá suànfǎEnglishSpanishArabicAlpha Very easy to use image smoothing algorithm based on a variety of commonly used filters)

可以打开视频文件，对视频文件中的人头进行检测并统计数量。算法有HOG RCNN 及Aggrate Channel Features三种(You can open the video file, the head of the video file to detect and statistics. Algorithm HOG RCNN Aggrate Channel Features tionchannel three)

DB97提升小波程序，实现任意偶数大小图像双正交97提升小波变换，比传统的CDF97卷积算法好(DB97 lifting wavelet procedures, arbitrary size images even biorthogonal wavelet transform 97 upgrade, than the traditional filter convolution algorithm good)

说明：  图像的尺度不变特征特征点提取，快速提取图像的特征点(SIFT feature extraction of image)

运用matlab提取视频，显示出视频图像的图像特征，并以柱状图形式显示(Use matlab extract video shows the image feature of the video image, and is displayed in histogram form)

主要是多光谱多波段两幅图像的变化检测求得差异影像 大家可以参考参考 运行主程序(mian is used to difference of two images)