图像分割评价标准VO&DC的计算方法

1.DC  
Dice Coefficient
2.VO  
Volume Overlap
     The number of voxels in the intersection of segmentation and reference,
divided by the number of voxels in the union of segmentation and reference

// int main(int argc, char** argv)   

//{

//    char filename[100];

//    float sum,sum1;

//    

//    for(int i=0;i<=23;i++)

//

//    {

//    sprintf(filename,"F:/fighting/project/data/add_result/4-%d.png",i);// 将图片以数字命名：例如1.jpg 2.jpg等，放入D:/test/文件夹下

//    sum=sum1=0.00;

//    IplImage * img=cvLoadImage(filename);

//    CvScalar s;

//    for(int i=0;i<img->height;i++)

//       {

//          for(int j=0;j<img->width;j++)

//          {

//             s=cvGet2D(img,i,j); // get the (i,j) pixel value

//

//             if(s.val[0]==255)

//             {

//             sum++;

//             }

//             else if(s.val[0]>100 && s.val[0]<255)

//             {

//                 sum1++;

//             }

//         }

//       }

//    float DC=2*sum/(sum1+2*sum);

//    float VO=sum/(sum1+sum);

//    //printf("iou=%d",ratio);

//    //cout<<sum<<"  "<<sum1<<endl;

//    cout<<"DC is "<<DC<<";  "<<"VO is "<<VO<<endl;

//    }

//    cvWaitKey();

// }