imageretrieval_matlab

在matlab下用hausdorff进行两幅图的匹配问题,可以得到hausdorff的距离(in Matlab using hausdorff two plans for the match, can be hausdorff distance)

mode purity method simulation

SART图像重建代码 基于C++ 主要用于CT等射线处理(code of image and with a wide application of CT, x-RAY , ETC)

图像自适应阈值分割，基于直方图的图像阈值分割(Image adaptive threshold segmentation)

sift Algorithm made by David Lowe sift demo

说明：  对于一些图像来说，常用的边缘检测算法有时候无法设立合适的阈值将它们的梯度较小的模糊边缘检测出来。为了解决这个问题，有两种解决方法：将图像方差标准化，拉大模糊边缘的梯度值，或通过设置sigmoid函数，将像素所在区域的信息传递到梯度值中去，对其进行调整，就能找到合适阈值，有效地将模糊边缘提取出来。本程序把这两种算法实现并与与传统算法进行了比较。(For some images, the commonly used edge detection algorithm sometimes can not be an appropriate threshold for the gradient of their smaller fuzzy edge detected. To solve this problem, there are two solutions: the image variance standardization, widening the fuzzy edge of the gradient value, or by setting the sigmoid function pixel region to disseminate the message to the gradient values to adjust, on the can find a suitable threshold, effectively extracted fuzzy edge. This procedure of these two algorithms with the traditional algorithm.)

说明：  一个从网上找来的屏幕截取代码，需要的就看看吧(A screen from the Internet and got the interception code, need to look at it)

（1）熟悉并掌握傅立叶变换 （2）了解傅立叶变换在图像处理中的应用 （3）通过实验了解二维频谱的分布特点 （4）用MATLAB实现傅立叶变换仿真 ((1) be familiar with and master the Fourier transform (2) understand the Fourier transform in image processing applications (3) experiments to understand the characteristics of the two-dimensional distribution of the spectrum (4) simulation using MATLAB Fourier transform)

图像处理方法的总汇，包含了滤波、灰度变换、对比度、亮度、二值等(The pool of image processing methods, including the filter, gray-scale transformation, contrast, brightness, and other binary)

说明：  以中心图像为模板，将其他八张图映射到模板中，然后粘贴到对应位置完成拼接(Take the center image as the template, map the other eight images to the template, and paste them to the corresponding position to complete the splicing)