差值扩展嵌入源码

维纳滤波对图像去噪与最小二乘方滤波对图像去噪的比较(Wiener filter for image denoising with the least squares filter for image denoising comparison)

2019最新的神经网络隐写分析网络，对空域频域均可(The newest neural network steganographic analysis network 2019 is applicable to both spatial and frequency domain)

实现约瑟夫图像置乱加密解密，完整版,可以进行图像加密解密分析(Joseph image scrambling encryption and decryption, complete version)

实现EEMD算法的函数，如extrema.m，eemd.m等等(the functions actualize of EEMD algorithm,such as extrema.m,eemd.m)

说明：  声呐或者雷达系统发射信号后，通过波束形成算法对两个目标（方位分别为theta1、theta2）回波进行仿真，经过相位补偿，可以看出图像有两个波峰，波峰处指向性函数峰值最大，峰值所对应的的角度值即为目标的方位角。所以该程序对数字波束形成（DBF）的原理进行了仿真，适合初学者掌握阵列信号处理中数字波束形成的原理。(After the sonar or radar system transmits the signal, the echo of the two targets (the azimuth is theta1 and theta2 respectively) is simulated by the beamforming algorithm. After the phase compensation, it can be seen that the image has two peaks, the peak of the directivity function is the largest, and the corresponding angle value of the peak is the azimuth of the target. So the program simulates the principle of DBF, which is suitable for beginners to master the principle of DBF in array signal processing.)

说明：  usps数据库为标准手写数据库，此为mat数据文件，含训练集和测试(USPS database is a standard handwritten database, which is a mat data file, including training set and test)

说明：  tv全变差去噪。自己编写的自适应去噪，传统去噪。保真去噪(TV total variation de-noising. Self-adaptive denoising, traditional denoising. Fidelity de-noising)

三次样条曲线拟合类，可用于样条插值、拟合、预测等算法场合。(The Cubic Spline Interpolation class can be used for spline interpolation, fitting, prediction and other algorithms.)

基于巴谷星表星挑选出等小于2的恒星，利用matlab实现可生成任意方向的导航星星图以作为天文导航识别定位定姿依据的程序。(Pick out the star catalog prakob etc. less than 2 stars for navigation based on star map can be generated in any direction as celestial navigation positioning and orientation according to the recognition procedure using matlab.)

在matlab中的分形图像放大程序；对初学者很有用哦！(In the matlab source code to raise the image resolution is indeed very useful!)