this code for control a ball to move

A FREE WINDOWS cocos2d particle editor Upgraded to Cocos2dx 2.12，and support saving texture into plist。 

检测空间中直线是否相交（动态）-detect whether linear space intersect (dynamic)

its for enhancment of image using filters

尺度不变特征转换(Scale-invariant feature transform或SIFT)是一种电脑视觉的算法用来侦测与描述影像中的局部性特征，它在空间尺度中寻找极值点，并提取出其位置、尺度、旋转不变量，此算法由 David Lowe在1999年所发表，2004年完善总结。其应用范围包含物体辨识、机器人地图感知与导航、影像缝合、3D模型建立、手势辨识、影像追踪和动作比对。

这是DX做场景的案例。。。希望有兴趣的人大家可以一起来探讨-This is the case of DX do the scene. . . I hope that those who are interested we can work together to explore the

在灰度图像中进行直线检测，带实验效果图像。利用快速Hough变换，能够正确查找线段端点。-In the gray image in a straight line detection, the experiment with the effect of the image. Using fast Hough transform, to correctly segment endpoint search.

用vc + mapobjects开发的源代码，用鼠标对多边形进行操作，实现了多边形的缩放功能。-with vc MapObjects development of the source code, using the mouse to operate polygons and achieve the polygon"s zoom function.

一个简单的等值线绘制程序，效果一般，原理可以参考一下-Isogram a simple drawing program, the effect of the general principle for reference

中点椭圆生成算法-midpoint oval Algorithm

PCA人脸识别代码,希望指教-PCA Face Recognition code, hoping enlighten