Hyperspectral-image-readandwrite

一些常见的图像处理方面的图像（尺寸不一）(Some common image processing aspects (different sizes))

图像的阈值分割，基于matlab的一维非广延熵Tsallis熵算法的灰度图像分割(Image segmentation, matlab-based one-dimensional non-extended entropy Tsallis entropy algorithm gray-scale image segmentation)

该算法首先通过字典学习得到含噪图像的冗余字典，然后对相似的图像块进行聚类构成块群，并通过迭代收缩和L1正则化约束，对同类的图像块在字典上进行稀疏表示，以达到降噪的目的。实验结果表明，在常规的图像处理上，本文提出的算法能较好的保留图像的结构信息，与K-SVD和BM3D等现有的流行算法相比，具有更高的峰值信噪比（PSNR）(It firstly get the redundant dictionary of a noised image by dictionary learning.Then,the image patches are gathered according to their similarities.Meanwhile,the similar patches get sparse representation showed in dictionaries by iterative shrinkage and L1 regularization constraints and eventually the image is restored and noise is removed.The experimental results indicate that the proposed algorithm can well preserve the structure information of the common image with a higher Peak Signal to Noise Ratio(PNSR),compared with state-of-the-art algorithms,such as K-SVD and BM3D)

该文件包含高斯高通滤波的源代码和高斯低通滤波的源代码，可以运行，效果很好(Gaussian high-pass filter Gaussian low-pass filtering )

自适应加权中值滤波，可以调节窗口大小和中心像素的权重以及其他相关像素与中心像素的权重比例。(adaptive weighted median filter)

在matlab环境下对图像进行处理，运用霍夫变换方法得到图像分割的阈值，并进行圆形的检测(In the matlab environment for image processing, using Hough transform method for image segmentation threshold and for the detection of circular)

基于Matlab的结合Laplacian Pyramid 和反锐化掩膜的改进法的图像增强算法(Matlab based on a combination of Laplacian Pyramid and unsharp mask to improve the method of image enhancement algorithm)

本程序是用似然比检验的方法进行profile中的变点检测(This procedure is used likelihood ratio test method of change point detection profile)

snake算法的多种实例，包括ballon，distance等共计8个m文件(snake algorithm many examples, including ballon. Total distance, and other documents 8 m)

计算电磁波辐射的FDTD程序源码，基于C++编写，支持MUR和PML边界条件，能计算SAR及天线辐射方向图(FDTD source code based on C++.Various absorbing boundary, include PEC, Mur, PML Calculate Specific Absorption Rate (SAR) Antenna radiation simulation, calculate radiation power.)