Image registration finds as variety of application in computer vision. This paper present a new image registration technique that makes use of the spatial intensity gradient of the images to find a good match using a type of Newton-Raphson iteration

一种基于局部梯度比率特征度量SAR图像相似性的新方法-A new method for SAR image similarity measure based on local gradient ratio characteristic .pdf

包括随机梯度算法，相对梯度算法，实现了图像的加水印，去噪，加噪声等功能，GSM中GMSK调制信号的产生。- Including stochastic gradient algorithm, the relative gradient algorithm, Realize image watermarking, de-noising, plus noise and other functions, GSM is GMSK modulation signal generation.