L2

用hilbert曲线扫描图像后，进行图像检索的代码，里面有很多有用的代码(After scanning the image with the hilbert curve, the image retrieval code, there are a lot of useful code)

说明：  修改文件存储路径及相关参数,此代码可读取nc格式的文件(After modifying file storage path and related parameters,this code can read the data with the format of 'nc')

采用归一化互相关的算法进行图像匹配，经过测试非常有效(Normalized cross-correlation image matching, tested very effective)

用于图像处理上的像素点之间相关性的计算，主要用于分析像素值之间的关联度。(For the calculation of the correlation between the pixels on the image processing)

基于二维直方图的最大模糊熵阈值图像分割，相比于一维最大模糊熵，分割效果更好。隶属度函数采用S函数(Based on two-dimensional histogram maximum fuzzy entropy threshold image segmentation, compared to one-dimensional maximum fuzzy entropy segmentation better)

说明：  求取图像信噪比 均方差 峰值信噪比 逼真度等的matlab 程序函数(Average Absolute Difference，Signal to Noise Ratio (dB)，Peak Signal to Noise Ratio (dB)，Image Fidelity，Mean Square Error，The difference between restoredimg entroy and originalimg，entroy)

说明：  m-map工具箱，可以帮助画图，比如世界地图的背景(M-map toolbox, can help draw pictures, such as the background of the world map)

说明：  全变分图像去噪 tv_L2 模型 具有非常好边界保持能力的去噪算法(total variational for denosing)

基于互信息的分层金字塔的图像配准算法，互信息的加入让信息更丰富，精度更高(Image registration algorithm based on hierarchical pyramid of mutual information, mutual information is added to make information more abundant and higher precision)

很有用的gdal库，并且已经编译好。请多多指教!(It is a very good resource！Please download！！)