opencv 椭圆拟合

matlab:cftool是很强大的曲线拟合工具箱，也很容易操作

#include "cv.h"
#include "highgui.h"

int slider_pos=70;//阈值

IplImage *image02 =0,*image03 = 0,*image04 = 0;
void process_image(int h);

int main(int argc ,char **argv)
{
    const char *filename ="rice.png";
    if ((image03 = cvLoadImage(filename,0))==0)//读入图像为灰度图像
    {
        return -1;
    }
    image02 = cvCloneImage(image03);
    image04 = cvCloneImage(image03);
    
    cvNamedWindow("Source",1);
    cvNamedWindow("Result",1);

    cvShowImage("Source",image03);

    cvCreateTrackbar("Threshold","Result",&slider_pos,255,process_image);

    process_image(0);