you can detect feature points in any image. OpenCV is needed.. it uses surf algorithm to do so

surf的C++实现类，包含main函数，可直接运行。需要OpenCV的支持-the class of SURF,include main function

OpenCV 图像处理与特征分析示例： SURF 特征提取、计算处理与分析应用. OPENCV 爱好的必备， C++ 代码实现。 -OpenCV image processing and feature analysis example: SURF feature extraction, processing and analysis to calculate the necessary application OPENCV hobby, C++ code.

opencv的surf算法的实现，自己编的代码，可以实现效果，而且有一定的意义-code of surf，and use c++ and opencv