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package imaging.filters;
import java.awt.image.*;
public class BlurFilter extends SpatialFilter
{
private int[][] mean_filter;
private int degree_ = 3;
public BlurFilter()
{
}
public BlurFilter(int degree)
{
degree_ = degree;
}
public void imageComplete(int status)
{
if (status == IMAGEERROR || status == IMAGEABORTED)
{
consumer.imageComplete(status);
System.out.println("Image Error");
return;
}
int[] pixels = new int[columns_];
int pixel = 0, count = 0;
int red, green, blue;
int alpha, n2 = degree_/2;
for (int y = 0; y < rows_; y++)
{
for (int x = 0; x < columns_ - 1; x++)
{
red = 0; green = 0; blue = 0; count = 0;
alpha = (raster_[y*columns_ + x] >> 24) & 0xff;
for (int y1 = y - n2; y1 < y + n2; y1++)
{
if (y1 >= 0 && y1 < rows_)
{
for (int x1 = x - n2; x1 < x + n2; x1++)
{
if (x1 >= 0 && x1 < columns_)
{
pixel = raster_[y1*columns_ + x1];
red += (pixel >> 16) & 0xff;
green += (pixel >> 8) & 0xff;
blue += (pixel) & 0xff;
count++;
}
}
}
}
red /= count;
green /= count;
blue /= count;
if (red < 0) red = 0;
if (green < 0) green = 0;
if (blue < 0) blue = 0 ;
if (red > 255) red = 255;
if (green > 255) green = 255;
if (blue > 255) blue = 255;
pixels[x] = (alpha << 24) | (red << 16) | (green << 8) | blue;
}
consumer.setPixels(0, y, columns_, 1, defaultRGB_, pixels, 0, columns_);
}
System.out.println("Finished altering image");
consumer.imageComplete(status);
}
public String info ()
{
return "Blurs an image.";
}
}
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