Useless loop

[ArtemZamuruev]

Hi! I have your implementation of ViBe+ reviewed and realized that in function

void ViBePlus::UpdatePixSampleSumSquare(int i, int j, int k, int val)
{
    double res = 0;
    UpdatePixSampleAve(i, j, k, val);
    for(int m = 0; m < num_samples; m++)
        res += pow(samples[i][j][m] - samples_ave[i][j], 2);
    res /= num_samples;
    samples_sumsqr[i][j] = res;
}

the loop is useless. Because it's adding to res a value of expression pow(samples[i][j][k] - samples_ave[i][j], 2) <num_samples> times. Then res is dividing by num_samples. So this loop and dividing are equals to res = pow(samples[i][j][k] - samples_ave[i][j], 2).

That is why I'm suggesting that there must be a samples[i][j][m] instead of samples[i][j][k]. Otherwise this loop is useless.