Thanks in advance

This is the code:

public void integralThresh(byte[] in_buf, NyARIntSize i_size,INyARBufferReader i_output) //im -> source/dest image
{
int h = i_size.h; //image height
int w = i_size.w; //image width

int size = w * h;
int S = w >> 3;
int S2 = S >> 1;
float T = 0.15f;
float IT = 1.0f – T;

int[] integral = new int[size];
int[] threshold = new int[size];
int[] data = new int[size];
int bp = 0;
int aux = 0;
int[] out_buf = (int[])i_output.getBuffer();

//Note: copying source image(im) to a vector to use the same code from Eugene
int index = 0;
for (int l = 0; l < h; l++)
for (int c = 0; c < w; c++)
{
aux = ((in_buf[bp] & 0xFF) + (in_buf[bp + 1] & 0xFF) + (in_buf[bp + 2] & 0xFF));
bp += 4;

data[index++] = aux;
}

int i, j, diff;
int x1, y1, x2, y2, ind1, ind2, ind3 = 0;
int sum = 0, ind = 0;

while( ind < size )
{
sum += data[ind] & 0xFF;
integral[ind] = sum;
ind += w;
}

x1 = 0;
for (i = 1; i S) x1 = i – S;
diff = i – x1;
for (j = 0; j < h; ++j)
{
sum += data[ind] & 0xFF;
integral[ind] = integral[(int)(ind - 1)] + sum;
ind += w;

if (i < S2) continue;
if (j < S2) continue;

y1 = (j < S ? 0 : j – S);

ind1 = y1 * w;
ind2 = j * w;

if (((data[ind3] & 0xFF) * (diff * (j – y1))) < ((integral[(int)(ind2 + i)] – integral[(int)(ind1 + i)] – integral[(int)(ind2 + x1)] + integral[(int)(ind1 + x1)]) * IT))
{
threshold[ind3] = 0xFF;// 0×00;
out_buf[ind3] = 0xFF;// 0×00;
}
else
{
threshold[ind3] = 0×00;//0xFF;
out_buf[ind3] = 0×00;//0xFF;
}
ind3 += w;
}
}

y1 = 0;
for( j = 0; j < h; ++j )
{
i = 0;
y2 = h – 1;
if( j S2 ) y1 = j – S2;
ind1 = y1 * w;
ind2 = y2 * w;
diff = y2 – y1;

for( ; i < w; ++i, ++ind )
{

x1 = (i = w) x2 = w – 1;

if (((data[ind]&0xFF)*((x2 – x1) * diff)) < ((integral[(int)(ind2 + x2)] – integral[(int)(ind1 + x2)] – integral[(int)(ind2 + x1)] + integral[(int)(ind1 + x1)])*IT))
{
threshold[ind] = 0xFF;// 0×00;
out_buf[ind] = 0xFF;// 0×00;
} else
{
threshold[ind] = 0×00;//0xFF;
out_buf[ind] = 0×00;//0xFF;
}
}
}

}
}

Is there something I am missing or should be doing? Thanks!