绘制矢量水听器的心形指向性Vector_Hydrophone_Direction

用matlab实现了一系列示例：球差，慧差，像差，像散。(Using matlab to achieve a series of examples: spherical aberration, coma, aberration, astigmatism.)

matlab实现lsb替换算法，包括水印嵌入、提取及PSNR计算评估。(Matlab implements LSB replacement algorithm, including watermark embedding, extraction and PSNR computation and evaluation.)

此程序为摄影测量的一个小环节，主要功能是求解影像畸变差，可根据相机内参数求解，简单实用(This program is a small part of photogrammetry, the main function is to solve the differential image distortion can be solved according to the camera parameters, simple and practical)

各种矩阵算法库,支持UpperTriangularMatrix,LowerTriangularMatrix, Diagon()

说明：  susan算法是基于灰度的特征点获取方法，适用于图像的边缘提取(susan algorithm is based on the gray-scale method to obtain the feature points for image edge extraction)

运动的小球、一般本科需要的课后作业设计。有兴趣的可以下载看看(The ball movement, the general undergraduate required homework designs. Interested parties can download and see)

自己实现的BM3D图像去噪算法。它首先把图像分成一定大小的块，根据图像块之间的相似性，把具有相似结构的二维图像块组合在一起形成三维数组，然后用联合滤波的方法对这些三维数组进行处理，最后，通过逆变换，把处理后的结果返回到原图像中，从而得到去噪后的图像。(Image Denosing by Sparse 3-D Transform-Domain Collaborative Filtering.)

基于Fisher线性判别基础学习器的集成分类器专门用于数字媒体的隐写分析，目前使用高维特征空间。目前，由于其良好的检测精度和较小的计算成本，它可能是设计监督分类器用于数字图像隐写分析的最常用方法。(The ensemble classifier, based on Fisher Linear Discriminant base learners, was introduced specifically for steganalysis of digital media, which currently uses high-dimensional feature spaces. Presently it is probably the most used method to design supervised classifier for steganalysis of digital images because of its good detection accuracy and small computational cost. It has been assumed by the community that the classifier implements a non-linear boundary through pooling binary decision of individual classifiers within the ensemble.)

Matlab入门级图像处理程序 低通滤波器对受噪声干扰的图像进行平滑处理,(Matlab entry-level image processing low-pass filter to smooth the image by noise,)

Laplacian pyramid方法的matlab程序代码，对用Laplacian pyramid多尺度方法的同志肯定有用(Laplacian pyramid of Matlab code, Laplacian pyramid with the multi-scale approach certainly useful comrades)