RdwtSvdWatermarking

SIFT，即尺度不变特征变换（Scale-invariant feature transform，SIFT），是用于图像处理领域的一种描述。这种描述具有尺度不变性，可在图像中检测出关键点，是一种局部特征描述子。 该方法于 1999 年由 David Lowe 首先发表于计算机视觉国际会议（International Conference on Computer Vision，ICCV），2004 年再次经 David Lowe 整理完善后发表于 International journal of computer vision（IJCV） 。截止 2014 年 8 月，该论文单篇被引次数达 25000 余次。(来自百度)(SIFT, namely Scale-invariant feature transform (SIFT), is a description used in the field of image processing. This description has scale invariance and can detect key points in images. It is a local feature descriptor. This method was first published by David Lowe at the International Conference on Computer Vision (ICCV) in 1999 and published in the International Journal of Computer Vision (IJCV) in 2004 after it was sorted out and perfected by David Lowe again. As of August 2014, more than 25,000 citations have been cited. (From Baidu))

连通域处理的函数简介，包含删除小面积对象，计算对象面积，删除边界对象等(Function of connected domain processing)

说明：  简易的在c#中利用gdal来读取遥感图像(Using GDAL to read remote sensing image in C)

VC做的图像处理方面的一些代码，仅供参考(VC do image processing of some code, only supplies the reference )

本程序实现了两种误差扩散算法，分别用Sierra扩散滤波器和stenenson扩散滤波器，实现了比Floy_stein更好的误差扩散半色调效果。(This procedure implements two error diffusion algorithm, respectively Sierra diffusion filters and stenenson diffusion filter, to achieve better than Floy_stein error diffusion halftone effects.)

实现图像颜色识别分块实现图像颜色识别分块(Block of image color recognition)

基于小波变换模极大的多尺度图像边缘检测,比较简单，但实用，是本人模式识别程序的一部分(Based on wavelet transform modulus maxima of the multi-scale image edge detection, relatively simple, but useful, is himself a part of pattern recognition procedures)

多光源光度立体法实现，用于表面纹理处理：根据光源入射向量球表面梯度进而实现三维重建(The multi source photometric stereo method is used to realize the surface texture processing: the 3D reconstruction is realized according to the surface gradient of the incident vector of the light source.)

说明：  结合图像处理MATLAB的基本原理和知识，详细介绍了手指静脉预处理，图像分割，静脉纹路分割，滤波去噪，细化等相关内容。(Combined with the basic principle and knowledge of image processing, this paper introduces the finger vein pretreatment, image segmentation, vein vein segmentation, filtering and denoising, thinning and other related contents in detail.)

根据图像色彩信息，寻找图像的质心，以便对目标的跟踪(The image color information, look for the image of the center of mass to the target track)