515030910511 exercise1

ISO 18092:2013 Information technology — Telecommunications and information exchange between systems — Near Field Communication — Interface and Protocol (NFCIP-1)

利用索贝尔算子两种模板提取图像梯度，幅度选取分别利用欧式距离、城区距离和棋盘距离。(Using two templates of Sobel operator to extract the gradient of a image. Magnitude was selected by using Euclidean distance, city distance and chessboard distance.)

针对现有方法存在的隐藏容量低、操作不灵活的缺陷，文章提出了一种基于无损压缩的加密图像可逆 信息隐藏算法。(In view of the defects of low hiding capacity and inflexible operation of the existing methods, this paper proposes a reversible information hiding algorithm for encrypted images based on lossless compression.)

在matlab中读入视频序列，并显示出来。对视频流文件进行按帧读取，并计算帧与帧之间差值，并统计差值的分布。(Read into the video sequence in matlab, and displayed. Streaming video, read the press frame, and calculate the difference between frames, and statistical difference between the distribution.)

此程序用于伪彩色图象的处理，实现程序的增强功能．(procedure for the pseudo-color image processing, and process enhancements.)

一段修改后的变色龙聚类算法，可用于无监督聚类。(A modified chameleon clustering code, using matlab.)

遥感图像处理的基本操作：PCA变换、KT变换、直方图显示、彩色显示等(The basic operation of the remote sensing image processing: PCA transform, KT transform, histogram display, color display)

matlab下实现图像的灰度直方图绘制 以及图像的灰度均衡化处理(Matlab image histogram of the gray scale mapping and image processing gray balance)

本程序利用SIFT算法实现影像匹配的基础上，实现全景图的拼接，实用性很强，大家可以把拍摄的相邻的几张有重叠度的照片拼接成一张全景图。(The program uses SIFT image matching algorithm based on the realization of panorama stitching, very practical, we can put a few have taken the overlap of adjacent photos into a panoramic mosaic map.)

mean shift 的经典实现源代码，可以做为基核，大量改用(realize the classical mean shift source code, can be used as nuclear matrix, a large number of switch)