How to translate opencv C++ code ,containing pointers to JAVA?
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cv::Mat getEyeball(cv::Mat &eye, cv::Mat &circles)
{
std::vector<int> sums(circles.size(), 0);
for (int y = 0; y < eye.rows; y++)
{
uchar *ptr = eye.ptr<uchar>(y);
for (int x = 0; x < eye.cols; x++)
{
int value = static_cast<int>(*ptr);
for (int i = 0; i < circles.size(); i++)
{
cv::Point center((int)std::round(circles[i][0]), (int)std::round(circles[i][1]));
int radius = (int)std::round(circles[i][2]);
if (std::pow(x - center.x, 2) + std::pow(y - center.y, 2) < std::pow(radius, 2))
{
sums[i] += value;
}
}
++ptr;
}
}
int smallestSum = 9999999;
int smallestSumIndex = -1;
for (int i = 0; i < circles.size(); i++)
{
if (sums[i] < smallestSum)
{
smallestSum = sums[i];
smallestSumIndex = i;
}
}
return circles[smallestSumIndex];
}
I think you can find an answer in this tutorial : same code for C++ python and java
the current algorithm also weights smaller circles better (irrespective of the value), due to usage of sum()