importjava.awt.Color;importjava.awt.image.BufferedImage;importjava.io.File;importjava.io.IOException;importjavax.imageio.ImageIO;public classTest
{/*** 简单高斯模糊算法
*
*@paramargs
*@throwsIOException [参数说明]
*
*@returnvoid [返回类型说明]
*@exceptionthrows [违例类型] [违例说明]
*@see[类、类#方法、类#成员]*/
public static voidmain(String[] args)throwsIOException
{
BufferedImage img= ImageIO.read(new File("d:\\My Documents\\psb.jpg"));
System.out.println(img);int height =img.getHeight();int width =img.getWidth();int[][] matrix = new int[3][3];int[] values = new int[9];for (int i = 0; i < width; i++)
{for (int j = 0; j < height; j++)
{
readPixel(img, i, j, values);
fillMatrix(matrix, values);
img.setRGB(i, j, avgMatrix(matrix));
}
}
ImageIO.write(img,"jpeg", new File("d:/test.jpg"));//保存在d盘为test.jpeg文件
}private static void readPixel(BufferedImage img, int x, int y, int[] pixels)
{int xStart = x - 1;int yStart = y - 1;int current = 0;for (int i = xStart; i < 3 + xStart; i++)
{for (int j = yStart; j < 3 + yStart; j++)
{int tx =i;if (tx < 0)
{
tx= -tx;
}else if (tx >=img.getWidth())
{
tx=x;
}int ty =j;if (ty < 0)
{
ty= -ty;
}else if (ty >=img.getHeight())
{
ty=y;
}
pixels[current++] =img.getRGB(tx, ty);
}
}
}private static void fillMatrix(int[][] matrix, int... values)
{int filled = 0;for (int i = 0; i < matrix.length; i++)
{int[] x =matrix[i];for (int j = 0; j < x.length; j++)
{
x[j]= values[filled++];
}
}
}private static int avgMatrix(int[][] matrix)
{int r = 0;int g = 0;int b = 0;for (int i = 0; i < matrix.length; i++)
{int[] x =matrix[i];for (int j = 0; j < x.length; j++)
{if (j == 1)
{continue;
}
Color c= newColor(x[j]);
r+=c.getRed();
g+=c.getGreen();
b+=c.getBlue();
}
}return new Color(r / 8, g / 8, b / 8).getRGB();
}
}
