for Computing logarithmic polar transformation of image

用于高维数据的检索或最临近索搜索 高维数据处理一直是计算机数据挖掘, 图像检索方向的难点, 该算法是一种近似最临近方法, 效率提高比较多的-For high-dimensional data retrieval or the cable near the search deal with high dimensional data has always been a computer data mining, image retrieval difficult direction, the algorithm is a method similar to the most close to, improve the efficiency of a relatively large number of

本代码包含数字图像处理一般功能，包含图像增强、图像复原、特征提取、编码等功能-This code contains the general features of digital image processing, including image enhancement, image restoration, feature extraction, encoding and other functions

bmp to jeg 文件，自己写的，和大家分享一下，希望会有帮助-bmp to jeg paper wrote it myself, and share with you, I hope will be helpful

Description: Starting from an image file, it generates a .txt file containing the image in Ascii text format.

各种各样的非压缩图像格式（bmp,ppm,pgm）转化源码。-variety of non-compressed image formats (bmp, ppm, pgm) into the source code.

一个基于DCT变换的信息隐藏程序，能把文本信息隐藏到经过DCT变换的图像载体的频域中去。程序重点在于对图像的DCT变换-DCT-based Information Hiding Transform procedures, able to hide text message into image after DCT transform domain to the frequency vector. Procedures focus on the DCT transform of image

用Canny算子进行边缘检测 的 函数 文件，大家可以尝试的用用，都是基于matlab平台的。-Canny operator for edge detection function documents, we can try to use use are based on Matlab platform.

图像匹配点查找代码。用c++写的sift查找特征点的算法代码。思路清晰，注释明确。

通过MATLAB选择图像并且对选择区域进行复制-MATLAB choice through the selection of images and copy region

给予偏微分方程的图像处理一书中的实验代码很全面 -Given partial differential equations of image processing of the experimental code book is very comprehensive