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package imaging.filters;
import java.awt.image.*;
public class DeSpeckleFilter extends SpatialFilter
{
private int degree_ = 3;
public DeSpeckleFilter()
{
}
public DeSpeckleFilter(int degree)
{
degree_ = degree;
}
public String info ()
{
return "Removes speckles from an image.";
}
public void imageComplete(int status)
{
if (status == IMAGEERROR || status == IMAGEABORTED)
{
consumer.imageComplete(status);
System.out.println("DeSpeckleFilter Image Error: " + status);
return;
}
System.gc();
int rsum, bsum, gsum, r, g, b, a;
int count, n2, nsq, c2, lcv, lcv2, index;
int[] rtab, gtab, btab;
int[] pixels = new int[columns_*rows_];
profile_timer_.start();
n2 = degree_/2;
nsq = degree_ * degree_;
rtab = new int[nsq];
gtab = new int[nsq];
btab = new int[nsq];
for (int z = SpatialFilter.iterations_; z-- > 0;)
{
for (int y = 0, k = 0; y < rows_; y++)
{
lcv = y + n2;
for (int x = 0; x < columns_; x++, k++)
{
rsum = gsum = bsum = 0;
count = 0;
lcv2 = x + n2;
for (int y1 = y - n2; y1 < lcv; y1++)
{
index = y1*columns_;
if (y1 >= 0 && y1 < rows_)
{
for (int x1 = x - n2; x1 < lcv2; x1++)
{
if (x1 >= 0 && x1 < columns_)
{
int pixel = raster_[index + x1];
rtab[count] = (pixel >> 16) & 0xff;
gtab[count] = (pixel >> 8) & 0xff;
btab[count] = (pixel) & 0xff;
count++;
}
}
}
}
for (int d = count >> 1; d > 0; d >>= 1)
{
for (int i = d; i < count; i++)
{
for (int j = i - d; j >= 0 && rtab[j] > rtab[j+d]; j -= d)
{
int t = rtab[j];
rtab[j] = rtab[j + d];
rtab[j + d] = t;
}
for (int j = i - d; j >= 0 && gtab[j] > gtab[j+d]; j -= d)
{
int t = gtab[j];
gtab[j] = gtab[j + d];
gtab[j + d] = t;
}
for (int j = i - d; j >= 0 && btab[j] > btab[j+d]; j -= d)
{
int t = btab[j];
btab[j] = btab[j + d];
btab[j + d] = t;
}
}
}
c2 = count >> 1;
a = (raster_[k] >> 24) & 0xff;
r = ( (count % 2 == 0) ? (rtab[c2] + rtab[c2 - 1]) >> 1 : rtab[c2]);
g = ( (count % 2 == 0) ? (gtab[c2] + gtab[c2 - 1]) >> 1 : gtab[c2]);
b = ( (count % 2 == 0) ? (btab[c2] + btab[c2 - 1]) >> 1 : btab[c2]);
pixels[k] = (a << 24) | (r << 16) | (g << 8) | b;
}
}
}
profile_timer_.stop();
consumer.setPixels(0, 0, columns_, rows_, defaultRGB_, pixels, 0, columns_);
consumer.imageComplete(status);
}
}
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