zernike

目前最好的空域图像隐写算法，亲测已跑通！(the best Steganography)

小波图像去噪，全局阈值法，是多阈值小波去噪中两大部分：全局阈值法玉局部阈值法的重要组成部分。(Wavelet denoising, the global threshold method, the multi-threshold wavelet de-noising of two parts: the global threshold method jade local threshold an important part of the law.)

从原始图像产生噪声图像，使用db1执行2层小波，使用wpbmpen进行全阈值选择，采用硬阈值和软阈值处理方式,保存低频,进行图像降噪，并绘制各分解系数图像。(Generated noise image from the original image, using db1 wavelet perform two layers using wpbmpen full-threshold selection, using hard threshold and soft threshold approach, saving low frequency, image noise reduction, and draw the decomposition coefficients images.)

说明：  recon基于双视图的人脸特征三维重建，一个视图为正投影，另一个是水平方向旋转，假定正交投影模型，getfeature用于从图像上标记特征点(facial feature reconstruction based on two views)

此算法用于对图片进行光照补偿，并对补偿前后的图片进行对比。(This algorithm is used for illumination compensation, and compensation before and after pictures comparing picture.)

说明：  python实现双目立体匹配SGBM算法(SGBM algorithm for binocular stereo matching based on Python)

理解频域处理与空间域处理的等效关系与步骤，掌握频域相乘与空间域循环卷积之间的对等关系，理解DFT运算中补零的效果。(Understand the equivalent relationship and steps of frequency domain processing and space domain processing, understand the reciprocal relationship between frequency domain multiplication and space domain circular convolution, and understand the effect of zero padding in DFT operation.)

极坐标图像转直角坐标图像，相当于球面的展开效果，最好是正方形图像，但是长方形也可以。(POLARTOIM converts polar image to rectangular image)

de-speckling of noise in medical ultra sound images...

matlab实现量子图像加密，包括Arnold变换，双随机相位变换，信息熵，相邻像素相关性分析(matlab quantum encryption, including Arnold transform, double random phase transformation, entropy, correlation analysis of adjacent pixels)