sift_match

说明：  This book is targeted at R programmers who want to learn the graphing capabilities of R. This book will presume that you have working knowledge of R.

基于小波域的隐马尔可夫树模型的图像去噪方法的实现代码。(Based on the Wavelet Domain Hidden Markov Tree Model Image Denoising realize the code.)

冲击滤波模型是用用于图像边缘增强的一种常用算法(Impact filtering model is a commonly used algorithm for image edge enhancement)

亚像素边缘检测，基于zernike 灰度矩，实现精度可达0.05个pixel(sub-pixel edge detect)

实现凸多边形排样，使用临界多边形NFP判断两个凸多边形是否相交,使用启发式算法提高效率(It s a good implement of convex polygon stock.)

对偏振图像进行融合处理。其中包括比较经典的小波变换，ihs垂直变换以及拉普拉斯金字塔变换。。。(The polarization image fusion processing. Including the more classic wavelet transform, ihs vertical transformation and Laplacian pyramid transformation. . .)

一种基于可逆信息隐藏的的无损鲁棒数字水印模型的研究(Study on framework model of lossless robust digital watermarking based on reversible data hiding)

该图像处理程序实现将图像二值化，灰度化，二值化图像边界扫描并编号，如果图像为火焰图像可以实现将火焰图像的尖角数计算出来并标记(The image processing program image binarization, grayscale, boundary scan and number of the binary image if the image can be implemented for the flame image Now flame image of the sharp corners number and mark)

说明：  SIFT特征点的提取和匹配，SIFT算法首先在尺度空间上进行关键点检测，确定关键点的位置和关键点所处的尺度，然后使用关键点邻域梯度的主方向作为该点的方向特征，最后由关键点邻域梯度信息生成关键点的特征向量(SIFT algorithm firstly detects the key points in the scale space, determines the location of the key points and the scale of the key points, then uses the main direction of the key point neighborhood gradient as the direction feature of the point, and finally generates the feature vector of the key points from the key point neighborhood gradient information)

说明：  用于虹膜图像处理过程中的定位过程，采用二值化结合hough变化方法进行虹膜区域的定位(For the iris image processing positioning process, combined with the use of binarization methods hough change the positioning of the iris region)