#include"cv.h"
#include"cxcore.h"


//極限亮度差閾值
#define GRAY_DIFF_THR 10
 
IplImage* ScaningMethod( IplImage* img, float* x0, float* y0, float* r);
void ExtremeRow( IplImage* img, float* maxRow, float* minRow, int row);
void ExtremeCol(IplImage* img, float* maxCol, float* minCol, int col );
float RGB_to_gray( IplImage* img, int x, int y );
IplImage* Standard_circle(IplImage* img);