如何求直方图最大值是哪一列和它的值是多少，帮帮忙

[yzp2313782]

部分源码如下，怎么改程序可以得出直方图最大值是哪一列（i）

for (int i = 0; i < hsize; i++)
{
int val = saturate_cast<int>(hist.at<float>(i)*histimg.rows / 255);

rectangle(histimg, Point(i*binW, histimg.rows),
Point((i + 1)*binW, histimg.rows - val),
Scalar(buf.at<Vec3b>(i)), -1, 8);

cout << "Value" << i << "=" << hist.at<float>(i) << endl;

}

[蠓虫带着秤砣飞]

int iMax =  saturate_cast<int>(hist.at<float>(0));
for (int i = 0; i < hsize; i++)
 {
    if (iMax < saturate_cast<int>(hist.at<float>(0))) 
         iMax = saturate_cast<int>(hist.at<float>(0));
 int val = saturate_cast<int>(hist.at<float>(i)*histimg.rows / 255);

 rectangle(histimg, Point(i*binW, histimg.rows),
 Point((i + 1)*binW, histimg.rows - val),
 Scalar(buf.at<Vec3b>(i)), -1, 8);

 cout << "Value" << i << "=" << hist.at<float>(i) << endl;

 }