归一化

利用MATLAB软件完成基于离散余弦变换（DCT）的可见水印算法，实现可见水印的嵌入(discussed the mathematical manipulation method of visible digital watermark and realized the visible digital watermarking inserting by completing the watermark algorithm，which based discrete cosine transformation (DCT) with the MATLAB software)

说明：  双边滤波代码，双边滤波是一种非线性的方法,同时考虑到了图像的空域信息和灰度相似性,以达到保边去噪的目的.双边滤波通过空域矩阵和值域矩阵形成一个新的权重矩阵,其中空域矩阵用来模糊去噪；值域矩阵用来保护边缘.(Bilateral-Filtering code.Bilateral filtering is a nonlinear method, which takes into account the spatial information and gray similarity of the image to achieve the purpose of edge preserving denoising.The range matrix is used to protect edges.)

这次上传的代码是关于MRI Brain Scan_segmentation用的代码，希望能对大家有用(this code is uploaded on Scan_segmentation Brain MRI of the code, we hope that the useful)

基于Contourlet变换的多波段SAR图像融合 郑永安 宋建社 周文明 张杰 计算机工程 2007-09-20 期刊(multiband SAR image fusion based on Contourlet transform Zheng Yongan Song Jianshe Zhou Wenming Zhang jie computer engineering the 2007-09-20 journals)

说明：  二维功率谱密度计算程序 使用傅里叶变换，可以计算功率谱密度(Two dimensional power spectral density calculation program using Fourier transform)

帮助大家认识显卡性能，可以直观的见识显卡天梯(To help you understand the graphics card performance)

matlab程序，产生涡旋光束，光强以及相位图，在科研上很有用，简单快速。(The matlab program produces vortex beams, light intensities, and phase diagrams, which are useful, simple, and fast in scientific research.)

sar 图像定标程序，由灰度值计算后向散射系数(sar image calibration)

采用K-SVD对图像进行去噪处理。可以对不同类型的图像进行去噪处理。(Image denoising using K-SVD)

基于区域统计的融合规则，内含源码和源图像以及contourlet工具箱，直接出结果(Fusion rule based on regional statistics, containing source code and source images, and contourlet toolbox, directly results from)