详细描述了sift算法的主要思想，该算法具有旋转不变性，鲁棒性较强...

通用图像读取、保存、显示等基本操作,功能完整，代码可靠。-Common Image read, preserve, display and other basic operations, full-featured, reliable code.

线段及直线的基本运算 1. 点与线段的关系2. 求点到线段所在直线垂线的垂足3. 点到线段的最近点4. 点到线段所在直线的距离 5. 点到折线集的最近距离 6. 判断圆是否在多边形内7. 求矢量夹角余弦 8. 求线段之间的夹角9. 判断线段是否相交10.判断线段是否相交但不交在端点处11.求线段所在直线的方程 12.求直线的斜率 13.求直线的倾斜角14.求点关于某直线的对称点15.判断两条直线是否相交及求直线交点 16.判断线段是否相交，如果相交返回交点-straight line segment and a basic computing. Point and the line between the two. Seeking to point straight vertical line segment where the Pedal 3. Line points to the recent four points. Point to the straight line distance from the host 5. Set point to the recently broken away from six. To judge whether the circular polygon 7. for vector cosine angle 8. for the angle between the line 9. Line judge whether the intersection 10. Line judge whether the intersection but do not pay the endpoint Office 11. for the straight line segment where equation 12. for a linear slope 13. seeking straight tilt angle 14. Points on a linear symmetrical points 15. to judge whether the intersection of two straight and for 16 straight intersection. Line judge whether the intersectio

3d 3D三维立体变形C语言开发的源程序。 非常有趣，其功能好-3d 3D three-dimensional deformation of the C language source code. Very interesting, and its functions well

于傅里叶变换的图像加密技术研究 具体是将一幅图像用 fft 变换到频域 在频域中进行加密 我考虑的是通过随机相位来加密的方法，请问用matlab怎样实现 加密后在通过 ifft 得到加密后的图象 -Fourier transform in the image encryption technology to study the details of an image is to use fft transformed to the frequency domain in the frequency domain I consider encryption is through random-phase approach to encryption, Will the use of Matlab how to achieve the adoption of encryption ifft be encrypted images

基于环形颜色直方图的图像检索算发，比传统方法好用的多-Annular color histogram-based image retrieval count hair, easy to use than the more traditional methods

读取BMP图象数据的程序 仅供参考-BMP image data read procedure is for reference only

detect corners of a image and hough transform-corner detection and hough transform

单个按键多次击键的检测方法，程序匠人经典之作，非常实用-Many times a single keyboard key detection methods, procedures artisan classic, very useful

Super Resolution of Images and Video 超分辨率入门书籍-Super Resolution of Images and Video

这是一款图像处理软件，提供不同图像格式的转换功能-This is an image processing software, to provide different image format conversion function